Chapter 2: Eating with Awareness

Chapter Introduction

In Chapter 1, you learned what food is at the molecular level — the three macronutrients, what each one does, and why none of them is optional. You now understand the fuel. This chapter teaches you how to use that understanding in real life.

Over the next four lessons, you will learn to calculate your own energy needs (and understand why that calculation is an estimate, not a sentence). You will learn to read a food label and see through the marketing designed to confuse you. You will learn to cook — not gourmet cuisine, but the foundational skills that let you feed yourself real food for the rest of your life. And you will learn how to fuel your body for sport and physical activity so that your training produces results instead of exhaustion.

This chapter is about applied skill. Everything here is something you can do today — in your kitchen, in a grocery store, before practice, after a game. Coach Food teaches knowledge that works in the real world, not knowledge that lives only in a textbook.

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Lesson 2.1: Calculating What Your Body Needs

Learning Objectives

By the end of this lesson, you will be able to:

• Define Basal Metabolic Rate (BMR) and explain what it represents physiologically
• Calculate an estimated TDEE using the Mifflin-St Jeor equation and an activity multiplier
• Explain why the 2,000-calorie label is a population average and not a personal prescription
• Distinguish between using energy calculations as awareness tools versus surveillance tools
• Understand that for a growing teenager, calculated energy needs represent a floor — not a ceiling

Key Terms

The Number on the Label Is Not Your Number

Every packaged food in the United States carries a Nutrition Facts panel built around a 2,000-calorie daily reference. You have seen it a thousand times: "Percent Daily Values are based on a 2,000 calorie diet."

Here is what most people never learn: that number is a regulatory convenience. The FDA chose 2,000 calories in 1993 as a rough midpoint between the average needs of adult women (~1,800) and adult men (~2,200). It was designed for label math — not for your body [1].

A 15-year-old who plays soccer four days a week might need 2,800 calories. A 16-year-old who swims competitively might need 3,200. A 14-year-old going through a growth spurt might temporarily need more than a sedentary adult twice their age. The 2,000-calorie figure tells you almost nothing about what you specifically require.

So how do you find your number?

The Math — BMR and TDEE

Your body's energy use has layers. At the base is your Basal Metabolic Rate (BMR) — the energy required just to exist. If you lay in bed for 24 hours without moving, your body would still burn this many calories to keep your heart pumping, lungs expanding, brain functioning, and cells repairing.

For most people, BMR accounts for 60-75% of total daily energy expenditure. Your brain alone uses about 20% of your BMR. Your liver, kidneys, and heart together use another 30%. Just existing is energetically expensive [2].

The Mifflin-St Jeor equation is the most commonly used formula for estimating BMR:

Males: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age in years) + 5

Females: BMR = (10 × weight in kg) + (6.25 × height in cm) − (5 × age in years) − 161

Once you have BMR, multiply it by an activity multiplier to estimate your TDEE:

Example: A 16-year-old male, 175 cm tall, 68 kg, who plays basketball 5 days a week:

• BMR = (10 × 68) + (6.25 × 175) − (5 × 16) + 5 = 680 + 1,094 − 80 + 5 = 1,699 calories
• TDEE = 1,699 × 1.725 (very active) = 2,931 calories per day

That is almost 1,000 calories more than the label says.

Why This Number Is a Floor, Not a Ceiling

For adults who have finished growing, TDEE is roughly the amount of energy needed to maintain current body composition. For teenagers, it is something different: it is the minimum.

You are not maintaining. You are building. Your bones are mineralizing. Your brain is developing. Your hormones are establishing patterns that will serve you for decades. Your muscles are adding mass at a rate that will never be matched later in life. All of this construction requires energy above and beyond what TDEE calculations account for [3].

This is why undereating during adolescence is more dangerous than most people realize. The consequences are not just feeling tired — they include impaired bone density, delayed puberty, compromised immune function, and increased risk of stress fractures [4].

If the math gives you a number, eat at least that much. On heavy training days, eat more. When you are hungry, eat. Your body's hunger signals during adolescence are not a nuisance — they are a construction crew requesting materials.

Awareness vs. Surveillance

There is a critical difference between understanding how your body uses energy (awareness) and anxiously monitoring every bite (surveillance).

Awareness sounds like: "I know I need more fuel on practice days, so I'll add a bigger snack before training."

Surveillance sounds like: "I ate 2,147 calories today but my target was 2,100 and now I feel guilty."

Research consistently shows that rigid dietary tracking increases anxiety, reduces food enjoyment, and predicts disordered eating — particularly in teenagers [5]. The calculations in this lesson are educational tools, not a daily scorecard. Use them to understand the system. Then put the calculator away and eat.

Your body has sophisticated hunger and fullness signals that have been refined over millions of years of human evolution. Those signals work. Learning to listen to them is more sustainable than any spreadsheet.

Lesson Check

1. Using the Mifflin-St Jeor equation, calculate the estimated BMR for a 15-year-old female who is 163 cm tall and weighs 55 kg.
2. Why is the 2,000-calorie daily value on food labels potentially misleading for teenagers?
3. Explain why TDEE represents a floor, not a ceiling, for adolescents.
4. Give one example of fuel awareness and one example of food surveillance.

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Lesson 2.2: Reading Food Labels

Learning Objectives

By the end of this lesson, you will be able to:

• Read a Nutrition Facts panel and understand what each line represents
• Identify the most important information on a food label (serving size, ingredient list, added sugar)
• Recognize common marketing language designed to mislead ("natural," "clean," "guilt-free")
• Use label literacy as an awareness tool without developing obsessive checking behavior
• Understand that whole foods without labels are often the most nutritious choices

Key Terms

Why Labels Exist (And Why They Are Not Enough)

The Nutrition Facts panel was created in 1990 and updated in 2020. Its purpose is straightforward: give consumers standardized information about what is in packaged food so they can make informed choices.

That purpose is noble. The execution is flawed in predictable ways.

Serving sizes are set by manufacturers, not by your appetite. A bag of chips might list a serving as 15 chips — when most people eat the entire bag. A bottle of soda might list a serving as 8 ounces when the bottle holds 20. The numbers on the label are accurate per serving, but the serving itself is a marketing decision as much as a nutritional one [6].

Here is the most important lesson about food labels: the most nutritious foods in the grocery store do not have labels at all. An egg does not come with a Nutrition Facts panel. Neither does a salmon fillet, a head of broccoli, a bag of sweet potatoes, or a carton of blueberries. The foods that need the least explanation are the ones without packaging.

This does not mean packaged food is bad. It means that label literacy is a skill for navigating the processed-food landscape — not a substitute for eating real food.

The Anatomy of a Nutrition Facts Panel

Starting from the top:

Serving Size: Always check this first. Everything below it is measured per serving. If the bag contains 3 servings and you eat the whole bag, multiply every number by 3.

Calories: Energy per serving. Now that you understand TDEE from Lesson 2.1, this number has context. A 200-calorie snack for a teenager burning 2,800 calories daily is not the same as for a sedentary adult burning 1,800.

Total Fat / Saturated Fat / Trans Fat: From Lesson 1.4, you know fat is not the enemy. Total fat matters less than what kind of fat. Trans fat should be zero. If the ingredient list contains "partially hydrogenated" anything, there is trans fat present even if the label says 0g (manufacturers can round down from 0.5g per serving) [7].

Total Carbohydrate / Dietary Fiber / Added Sugars: The updated 2020 label now separates added sugars from total sugars — a significant improvement. A plain yogurt might have 12g total sugar (all naturally occurring lactose) and 0g added sugar. A flavored yogurt might have 24g total sugar with 12g added. Same food category, very different products.

Protein: Grams per serving. From Lesson 1.2, you know your daily target. A food label helps you track whether protein is distributed across your meals or concentrated in one.

The Ingredient List — Where the Real Information Lives

If the Nutrition Facts panel is the resume, the ingredient list is the background check.

Ingredients are listed by weight, from most to least. The first three to five ingredients tell you what the product primarily is. If sugar (in any of its many names — sucrose, high-fructose corn syrup, dextrose, maltose, cane juice, agave) appears in the first five ingredients, sugar is a major component of that product [8].

A useful heuristic: if the ingredient list contains items you would not find in a home kitchen — items like sodium stearoyl lactylate, tertiary butylhydroquinone, or artificial colors identified by numbers — the product has been heavily processed. This does not automatically make it dangerous, but it does mean the product is far removed from whole food.

Marketing Language — The Front of the Package Lies

The front of a food package is advertising. It is designed to sell, not to educate. Common marketing terms that have no regulated nutritional definition:

• "Natural" — Has no FDA definition for most foods. A product can be loaded with sugar and still be labeled natural.
• "Clean" — Not defined by any regulatory body. Means whatever the brand wants it to mean.
• "Guilt-free" — Implies that eating other foods should cause guilt. Food is not moral.
• "Superfood" — A marketing term, not a scientific category. Blueberries are nutritious. They are not magic.
• "Made with real fruit" — Often means fruit concentrate or flavoring, not whole fruit [9].

The principle: ignore the front. Flip the package over. Read the Nutrition Facts panel and the ingredient list. That is where the information lives.

Lesson Check

1. Why should you always check the serving size on a label before reading the rest?
2. How can a product contain trans fat even when the label says "0g Trans Fat"?
3. What do the first three ingredients on an ingredient list tell you?
4. Choose one marketing term ("natural," "clean," "guilt-free," or "superfood") and explain why it is misleading.

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Lesson 2.3: Cooking Real Food

Learning Objectives

By the end of this lesson, you will be able to:

• Explain why the ability to cook is a foundational life skill tied to health, independence, and agency
• Demonstrate safe knife handling, basic heat control, and food hygiene practices
• Identify five foundational cooking techniques that appear across world cuisines
• Recognize how home cooking reduces dependence on ultra-processed food — through having better options, not through avoidance
• Prepare a simple meal using minimal equipment

Key Terms

The Skill Nobody Teaches You

You will eat roughly 80,000 meals over your lifetime, and almost no one will formally teach you how to prepare them.

You will take math classes you may never use outside of school. You will memorize historical dates. You will learn to analyze poetry. All valuable. But the skill that directly determines what goes into your body three or more times a day — the skill that shapes your energy, your health, your grocery bill, your social life, your independence — is treated as optional.

It is not optional. Cooking is the most underrated health skill you can develop. Not because cooking makes you virtuous. Not because home-cooked food is morally superior to anything else. But because cooking gives you something nothing else can: the ability to feed yourself real food whenever you want, for the rest of your life, regardless of your budget, your location, or what is available around you [10].

Five Techniques That Unlock Every Cuisine

Every food culture on Earth shares a handful of foundational techniques. Master these five and you can cook food from any tradition:

1. Sautéing / Stir-frying. Hot pan, small amount of fat, food cut into small pieces, constant movement. This is scrambled eggs. This is a stir-fry. This is sautéed vegetables with garlic. The technique is identical whether you are cooking Italian soffritto, Chinese wok hei, Mexican fajitas, or Indian tadka.

2. Roasting. Food in an oven, high heat (200-220°C / 400-425°F), until browned and tender. Roasting works on virtually everything: vegetables, chicken, fish, root vegetables, fruit. The Maillard reaction at high heat creates flavors you cannot achieve any other way.

3. Braising / Stewing. Brown the food, add liquid, cover, cook slowly. This is the method behind every stew, curry, chili, soup, and pot roast in the world. It transforms inexpensive ingredients into meals that taste like they took all day — because they did, but your effort was 20 minutes.

4. Building a bowl. Base grain (rice, quinoa, pasta, bread) + protein (any source) + vegetables + fat (olive oil, avocado, nuts, cheese) + acid (lemon, vinegar, pickled vegetables) + seasoning. This formula produces Buddha bowls, grain bowls, poke bowls, bibimbap, burrito bowls, and salad plates. Once you know the formula, you never need a recipe.

5. Eggs. Scrambled, fried, boiled, poached, in an omelette, in a frittata. Eggs are the most versatile protein in any kitchen. They cook in minutes, cost almost nothing, and provide complete protein with every essential amino acid. Learning to cook eggs well is learning to feed yourself forever [11].

Kitchen Safety — The Non-Negotiables

Before you cook, you need three safety habits:

Knife safety: A sharp knife is safer than a dull one — a dull knife requires more force and is more likely to slip. Curl your fingers under when holding food (the "claw grip"). Cut away from your body. Never catch a falling knife.

Heat safety: Handles turned inward so they do not get bumped. Pot lids used as shields when adding food to hot oil. Water and hot oil do not mix — ever. A fire in a pan gets smothered with a lid or baking soda, never water.

Food hygiene: Wash hands before and during cooking, especially after handling raw meat. Use separate cutting boards for raw protein and vegetables. Cook poultry to 74°C (165°F) internal temperature. When in doubt, wash it [12].

Lesson Check

1. What is mise en place and why does it matter?
2. Describe the Maillard reaction and name two foods where you can observe it.
3. What is the "bowl formula" and why is it useful for someone learning to cook?
4. Explain one kitchen safety rule and why it exists.

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Lesson 2.4: Fuel for Sport

Learning Objectives

By the end of this lesson, you will be able to:

• Design a pre-workout, during-workout, and post-workout nutrition strategy
• Explain why glycogen replenishment matters for performance and recovery
• Understand Relative Energy Deficiency in Sport (RED-S) and recognize its warning signs
• Apply hydration guidelines including when water is sufficient and when electrolytes help
• Frame sports nutrition as fueling performance — never as body composition manipulation

Key Terms

The Equation Most Young Athletes Get Wrong

Performance = Training + Recovery + Fuel.

Most teen athletes obsess over the first, tolerate the second, and neglect the third. They train hard, sleep inconsistently, and eat whatever is convenient — which usually means not enough. The result is predictable: fatigue, slow recovery, frequent injury, declining performance, and the baffling feeling that more training is producing worse results.

The fix is almost never more training. It is almost always more fuel [13].

Before, During, and After — The Three Windows

Pre-workout (1-4 hours before): Your goal is to top off glycogen stores and provide steady energy. Eat a meal or substantial snack that is carbohydrate-forward with moderate protein and relatively low fat and fiber (these slow digestion and can cause discomfort during exercise).

Examples: oatmeal with banana and peanut butter, a turkey sandwich, rice with eggs, yogurt with granola and fruit.

During exercise (60+ minutes): For sessions under 60 minutes, water is sufficient. For longer or more intense sessions — particularly in heat — adding carbohydrates (30-60 grams per hour) and electrolytes (primarily sodium) supports performance. Sports drinks serve this purpose, though a banana and water accomplish the same thing [14].

Post-workout (within 30-120 minutes): The priority is glycogen replenishment and muscle repair. Combine carbohydrates and protein. A ratio of roughly 3:1 or 4:1 carbs to protein is supported by research for glycogen restoration [15].

Examples: chocolate milk (genuinely one of the most studied recovery drinks), a meal with rice, chicken, and vegetables, a smoothie with fruit, yogurt, and protein, a peanut butter and jelly sandwich with a glass of milk.

The timing matters most when you are training again within 24 hours. If you have a full day between sessions, total daily intake matters more than hitting a precise post-workout window.

RED-S — The Danger Nobody Talks About

Relative Energy Deficiency in Sport is the most underdiagnosed condition in youth athletics. It occurs when an athlete's energy intake is too low relative to their exercise expenditure — leaving insufficient energy for basic body functions.

RED-S is not just about eating disorders, though disordered eating is one pathway. It can happen to any athlete who simply does not eat enough to match their training load — often unintentionally. A busy student-athlete who skips breakfast, eats a small lunch, and trains for two hours after school may fall into low energy availability without realizing it.

The consequences cascade across every system in the body: weakened bones (stress fractures), impaired immune function (frequent illness), disrupted menstrual cycles, decreased muscle strength, impaired cardiovascular function, depression, anxiety, and declining athletic performance [16].

Warning signs include:

• Persistent fatigue that does not improve with rest
• Recurring injuries, especially stress fractures
• Loss of menstrual period (in females)
• Declining performance despite consistent training
• Frequent illness
• Difficulty concentrating
• Irritability or mood changes

If you recognize these signs in yourself or a teammate, the response is not to train harder. It is to eat more. And if symptoms persist, seek guidance from a healthcare provider who understands sports nutrition.

Hydration — Simple Rules That Work

Your body is approximately 60% water. During exercise, you lose water through sweat at rates ranging from 0.5 to 2.5 liters per hour depending on intensity, environment, and individual physiology [17].

Before exercise: Drink 400-600 mL (roughly 2 cups) of water in the 2-3 hours before training.

During exercise: Drink to thirst. For sessions under 60 minutes, water is sufficient. For longer sessions, especially in heat, add electrolytes (a pinch of salt in water works; a commercial sports drink also works).

After exercise: Replace lost fluid. A practical method: weigh yourself before and after exercise. For every kilogram lost, drink 1.5 liters over the following hours.

The simplest hydration check requires no equipment: look at your urine. Pale yellow means well-hydrated. Dark yellow means drink more. Clear means you may be overhydrating.

Lesson Check

1. What should a pre-workout meal emphasize, and what should it minimize? Why?
2. What is RED-S and why is it particularly dangerous for teen athletes?
3. At what exercise duration do sports drinks become more useful than water alone?
4. Name three warning signs of low energy availability in an athlete.
5. Describe the post-workout recovery nutrition principle (macronutrient ratio and timing).

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End-of-Chapter Activity: Cook One Real Meal

What you will need: Access to a kitchen, basic equipment (one pan, one pot, one knife, one cutting board), and ingredients for one simple meal.

Instructions:

1. Choose one of the following meals to prepare:

   • Scrambled eggs with sautéed vegetables and toast (Techniques: sautéing, seasoning)
   • Rice bowl with protein and roasted vegetables (Techniques: roasting, bowl building)
   • Simple pasta with garlic, olive oil, and vegetables (Techniques: sautéing, deglazing)

2. Before cooking, practice mise en place: read through the recipe, gather all ingredients and tools, and complete all prep (chopping, measuring) before turning on any heat.

3. While cooking, pay attention to:

   • The Maillard reaction — where do you see browning?
   • Seasoning at different stages — when do you add salt?
   • Heat control — what happens when you adjust the temperature?

4. After cooking and eating, write a one-page reflection that answers:

   • What went well? What was harder than expected?
   • What techniques from the lesson did you use?
   • How does the meal you cooked compare nutritionally to a meal you would have ordered or microwaved? (Use your label-reading skills from Lesson 2.2 to compare if possible.)
   • Would you cook this again? What would you change?

5. Optional: Take a photo of your finished meal and the ingredients you used. Document the process as a visual record of your first intentional cooking experience.

Important: The goal is not a perfect meal. The goal is the experience of feeding yourself. Every chef in the world started with a meal that was just okay.

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Vocabulary Review

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Chapter Quiz

Multiple Choice (select the best answer):

1. The 2,000-calorie daily value on food labels is: A) The amount every teenager should eat B) A regulatory average, not a personal prescription C) The maximum healthy intake D) Based on individual metabolic testing

2. Which component accounts for the largest portion of daily energy expenditure? A) Physical exercise B) Thermic effect of food C) Basal Metabolic Rate D) NEAT

3. On an ingredient list, ingredients are ordered by: A) Alphabetical order B) Nutritional importance C) Weight, from most to least D) Calorie content

4. The term "natural" on a food label: A) Means the product contains no artificial ingredients B) Is strictly regulated by the FDA C) Has no regulated nutritional definition for most foods D) Guarantees the food is organic

5. The Maillard reaction occurs when: A) Food is frozen rapidly B) Amino acids and sugars react at high heat, creating browning and flavor C) Vegetables are boiled in water D) Fat is removed from food during processing

6. For exercise lasting under 60 minutes, the best hydration strategy is: A) Sports drinks with electrolytes B) Energy drinks with caffeine C) Water D) Fruit juice

7. RED-S is caused by: A) Eating too much protein B) Insufficient energy intake relative to exercise expenditure C) Drinking too much water D) Sleeping too little

8. Post-workout nutrition should emphasize: A) Fat and fiber B) Protein only C) Carbohydrates and protein together D) Fasting to promote fat burning

9. Mise en place is important because it: A) Makes food taste better B) Reduces cooking time and chaos by preparing everything before you start C) Is required by food safety regulations D) Only professional chefs need to do it

10. A food labeled "0g Trans Fat" per serving: A) Contains absolutely no trans fat B) May contain up to 0.5g per serving if ingredient list shows "partially hydrogenated" oil C) Has been certified by the FDA as trans-fat-free D) Cannot legally be sold

Short Answer (write 2-4 sentences each):

1. Calculate the estimated TDEE for a 15-year-old female, 165 cm tall, 58 kg, who plays volleyball 4 days per week (moderately active). Show your work.

2. A teammate tells you they skip breakfast and lunch on game days to "feel lighter on the court." Using what you learned about RED-S and energy availability, explain why this strategy is counterproductive.

3. You are at the grocery store comparing two brands of granola bars. One says "All Natural — Clean Energy" on the front. Describe the steps you would take to evaluate whether this product is actually nutritious.

4. Describe the "bowl formula" for cooking and explain why it is a useful template for someone just learning to cook.

5. Explain why adaptive thermogenesis makes rigid calorie restriction an unreliable strategy for managing body composition.

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Teacher's Guide

Pacing Recommendations

Lesson Check Answers

Lesson 2.1:

1. BMR = (10 × 55) + (6.25 × 163) − (5 × 15) − 161 = 550 + 1,019 − 75 − 161 = 1,333 calories
2. It is a regulatory average for adults; teenagers — especially active ones — often need significantly more due to growth, activity, and development.
3. Teenagers are building bone, brain, muscle, and hormones. These construction processes require energy beyond basic maintenance, making TDEE a minimum intake target.
4. Awareness: "I need more fuel on practice days." Surveillance: "I ate 47 calories over my target and now I feel guilty."

Lesson 2.2:

1. Everything on the label is measured per serving. If you eat more than one serving, you must multiply all values accordingly.
2. FDA rules allow rounding from 0.5g to 0g per serving. Check the ingredient list for "partially hydrogenated" oils — their presence means trans fat exists in the product.
3. They tell you what the product is primarily made of, since ingredients are listed by weight from most to least.
4. Accept any well-explained answer. Example: "Natural" has no FDA definition for most foods — a product can contain large amounts of sugar, additives, or processing and still carry the "natural" label.

Lesson 2.3:

1. Mise en place means prepping all ingredients and tools before cooking. It prevents the chaos of searching for items while food is burning, reduces mistakes, and makes cooking calmer and more enjoyable.
2. The Maillard reaction is the chemical browning that occurs when amino acids and sugars are heated above ~140°C. Examples: seared steak, toasted bread, roasted vegetables, browned butter.
3. Base grain + protein + vegetables + fat + acid + seasoning. It is useful because it is a formula, not a recipe — any ingredients can fill each slot, creating infinite variety with one template.
4. Accept any correctly stated rule with reasoning. Example: "Curl fingers under when cutting (claw grip) because it keeps fingertips away from the blade edge."

Lesson 2.4:

1. Emphasize carbohydrates and moderate protein for energy and glycogen topping. Minimize fat and fiber because they slow digestion and can cause discomfort during activity.
2. RED-S occurs when energy intake minus exercise expenditure leaves insufficient fuel for basic body functions. For teens, it impairs bone density, growth, immune function, hormonal development, and mental health — on top of declining athletic performance.
3. At approximately 60 minutes. Under 60 minutes, water is sufficient.
4. Any three of: persistent fatigue, recurring injuries/stress fractures, loss of menstrual period, declining performance, frequent illness, difficulty concentrating, irritability.
5. Carbohydrates and protein in a 3:1 or 4:1 ratio within 30-120 minutes post-exercise, to replenish glycogen and initiate muscle repair.

Quiz Answer Key

1. B — A regulatory average, not a personal prescription
2. C — Basal Metabolic Rate
3. C — Weight, from most to least
4. C — Has no regulated nutritional definition for most foods
5. B — Amino acids and sugars react at high heat
6. C — Water
7. B — Insufficient energy intake relative to exercise expenditure
8. C — Carbohydrates and protein together
9. B — Reduces cooking time and chaos by preparing everything before you start
10. B — May contain up to 0.5g per serving
11. BMR = (10 × 58) + (6.25 × 165) − (5 × 15) − 161 = 580 + 1,031 − 75 − 161 = 1,375. TDEE = 1,375 × 1.55 (moderately active) = approximately 2,131 calories per day.
12. Skipping meals before a game creates low energy availability. The body's glycogen stores deplete, reducing available fuel for performance. Cognitive function declines (the brain needs glucose). Over time, this pattern risks RED-S — weakened bones, immune suppression, and hormonal disruption. "Feeling lighter" is the sensation of being underfueled.
13. Ignore the front claims. Flip the package. Check serving size, then read the ingredient list — are the first 3-5 ingredients whole foods or processed compounds? Check added sugar content. Compare protein and fiber per serving. Evaluate whether you would find these ingredients in a home kitchen.
14. The bowl formula is: base grain + protein + vegetables + fat + acid + seasoning. Any ingredient can fill each slot. It is useful because it teaches a principle rather than a recipe — once you know the formula, you can improvise meals from whatever is available.
15. When you eat less, your body adapts by lowering BMR, reducing NEAT, and conserving energy — a process called adaptive thermogenesis. This means the "target" keeps moving downward. Rigid restriction creates a cycle where your body fights to maintain its energy stores, making sustained weight loss through restriction alone physiologically difficult.

Discussion Prompts

1. How would you explain the difference between "awareness" and "surveillance" to a younger sibling who just started tracking their food?
2. What is one front-of-package marketing claim you have seen recently, and how would you investigate whether it is meaningful?
3. What meal could you realistically cook for yourself this week using the techniques from Lesson 2.3?
4. Have you or someone you know experienced any of the warning signs of RED-S? What would you do if you noticed them?
5. Why do you think cooking is not taught in most schools, and should it be?
6. How does understanding TDEE change the way you think about the "2,000 calorie diet" label?

Common Student Questions

Q: Should I calculate my TDEE and eat exactly that number every day? A: No. TDEE is an estimate — a starting point for understanding your energy needs, not a daily target. Your body has sophisticated hunger and fullness signals refined over millions of years of evolution. Use the math to understand the system, then eat to hunger and activity level. On some days you will eat more, on some less. Both are normal.

Q: Is ultra-processed food always bad? A: "Always bad" is too simple. Some processed foods are convenient and nutritionally adequate (canned beans, frozen vegetables, fortified cereals). The concern is when ultra-processed foods — those with long ingredient lists of compounds not found in a home kitchen — make up the majority of someone's diet. A few processed items in an otherwise whole-food diet is normal. A diet consisting primarily of ultra-processed food is associated with worse health outcomes.

Q: I don't have time to cook. Is that okay? A: Most people who say they do not have time to cook have not tried the simplest options. Scrambled eggs take 5 minutes. A bowl (grain + protein + vegetables) takes 15-20 minutes. A stir-fry takes 10 minutes of active cooking. The real barrier is usually skill and confidence, not time — which is exactly what Lesson 2.3 addresses.

Q: My coach told me to lose weight for my sport. What should I do? A: Any coach who tells a teenager to lose weight without involving a qualified sports dietitian is giving dangerous advice. Body composition changes during adolescence should be guided by healthcare professionals who understand growth, development, and the risks of energy restriction in young athletes. If this happens to you, talk to a parent, school counselor, or doctor.

Q: Why does the chapter say energy needs are a "floor" for teenagers? A: Because you are growing. Adults who have finished developing use energy primarily for maintenance. Teenagers use energy for maintenance AND construction — building bone, brain, muscle, hormones, and organs. The construction costs are not fully captured by standard TDEE calculations, which is why your calculated number represents a minimum intake, not a maximum.

Parent Communication Template

Dear Parent/Guardian,

Your student is working through Chapter 2: Eating with Awareness in CryoCove's nutrition curriculum. This chapter covers four applied skills:

• Calculating personal energy needs (and understanding why these calculations are estimates, not rules)
• Reading food labels critically — including recognizing marketing language
• Basic cooking skills with safety fundamentals
• Sports nutrition and the importance of adequate fueling for active teens

Key things to know:

• The end-of-chapter activity asks students to cook one simple meal. Kitchen supervision is encouraged for students who are new to cooking.
• We address RED-S (Relative Energy Deficiency in Sport) — a condition caused by insufficient fueling in athletes. If your student is active, this lesson is particularly important.
• Energy calculation is taught as an awareness tool, not a restriction tool. We explicitly address the difference between understanding fuel and obsessing over numbers.

If your student is an athlete whose coach has discussed weight or body composition, we encourage a conversation with a qualified sports dietitian rather than self-directed restriction.

Thank you for supporting your student's learning.

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Illustration Briefs

Illustration 1: Lesson 2.1 — The 2,000-Calorie Myth

• Placement: After "The Number on the Label Is Not Your Number"
• Scene: Coach Food at a chalkboard writing "2,000 ≠ YOUR number" with an X through 2,000. Student desks in foreground.
• Coach involvement: Teaching pose, pointing at board
• Mood: Eye-opening, educational, slightly provocative
• Key elements: Chalkboard, crossed-out number, question mark, Coach Food
• Aspect ratio: 16:9 web, 4:3 print

Illustration 2: Lesson 2.2 — The Grocery Store Split

• Placement: After "the most nutritious foods in the grocery store do not have labels"
• Scene: Grocery store split — colorful packaged products with labels on left, simple whole-food produce section on right. Coach Food in center gesturing toward produce.
• Coach involvement: Guide between two worlds
• Mood: Clarifying, contrast between complexity and simplicity
• Key elements: Packaging vs. whole food, marketing claims visible on left, clean produce on right
• Aspect ratio: 16:9 web, 4:3 print

Illustration 3: Lesson 2.3 — Coach Food in the Kitchen

• Placement: After "cooking is the most underrated health skill"
• Scene: Coach Food in an apron at a stove with a single pan. Minimal equipment: one pan, one pot, one knife, one cutting board. Steam rising.
• Coach involvement: Central, active cooking
• Mood: Warm, accessible, encouraging
• Key elements: Simple setup, steam, apron, real kitchen (not restaurant)
• Aspect ratio: 16:9 web, 4:3 print

Illustration 4: Lesson 2.4 — The Performance Equation

• Placement: After "The Equation Most Young Athletes Get Wrong"
• Scene: A balance scale. Heavy "Training" weight on one side. Light "Recovery" and "Fuel" on the other. Scale tipping. Coach Food adding food to the Fuel side.
• Coach involvement: Actively correcting the imbalance
• Mood: Instructive, athletic, action-oriented
• Key elements: Scale, training/recovery/fuel labels, food items, Coach Food
• Aspect ratio: 16:9 web, 4:3 print

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Citations

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