Nutrition Fundamentals

Eating to Support Your Goals — Simplified

Nutrition doesn't need to be complicated. The fundamentals work. Compliance beats optimization. Consistency beats perfection.

The Hierarchy of Nutrition

1. Calories (Most Important)

The principle: Energy balance determines weight change.

  • Surplus (more calories than you burn): Weight gain
  • Deficit (fewer calories than you burn): Weight loss
  • Maintenance (equal): Weight stable

No food is magic. No food is poison. Calories are the foundation.

2. Protein (Very Important)

The principle: Protein builds and maintains muscle, supports recovery, and enhances satiety.

Targets:

  • General fitness: 0.7-1g per pound of bodyweight
  • Building muscle or in a deficit: 0.8-1.2g per pound

Example: A 170-pound person should aim for 130-170g protein daily.

3. Food Quality (Important)

The principle: Whole foods provide more nutrients, more satiety, and support overall health.

Prioritize:

  • Lean proteins
  • Vegetables and fruits
  • Whole grains
  • Healthy fats
  • Minimally processed foods

4. Meal Timing and Frequency (Less Important)

The principle: When you eat matters less than what and how much you eat.

Eat in a pattern that helps you hit your targets consistently. That might be 3 meals, 6 meals, or intermittent fasting — whatever works for you.

5. Supplements (Least Important)

The principle: Supplements supplement a good diet. They don't fix a bad one.

Worth considering:

  • Protein powder (convenience)
  • Creatine (well-researched for strength)
  • Vitamin D (if deficient)
  • Fish oil (if not eating fish)

Calories In Practice

Finding Your Maintenance

Quick estimate: Bodyweight × 14-16 (lower if sedentary, higher if active)

Example: 170 lbs × 15 = 2,550 calories (rough estimate)

Better approach: Track your current intake and weight for 2 weeks. Adjust from there.

Fat Loss

Create a moderate deficit: 300-500 calories below maintenance

Rate of loss: 0.5-1 pound per week (faster is possible but harder to sustain)

Adjustments: If not losing, reduce by 100-200 calories. If losing too fast, add some back.

Muscle Building

Create a small surplus: 200-300 calories above maintenance

Rate of gain: 0.25-0.5 pounds per week for trained individuals

Adjustments: If not gaining, add 100-200 calories. If gaining fat too fast, reduce.

Maintenance

Eat at maintenance when:

  • Happy with body composition
  • Focusing on performance
  • Need a diet break

Protein In Practice

Why It Matters So Much

  • Builds and repairs muscle
  • Most satiating macronutrient
  • Hardest to store as fat
  • Supports recovery

Getting Enough

Good sources:

  • Meat (chicken, beef, pork, fish)
  • Eggs
  • Dairy (Greek yogurt, cottage cheese, milk)
  • Legumes (beans, lentils)
  • Tofu and tempeh
  • Protein powder (supplement)

Strategy: Include protein at every meal

Example Day (170g protein)

  • Breakfast: 3 eggs, Greek yogurt (35g)
  • Lunch: Chicken breast, rice, vegetables (45g)
  • Snack: Cottage cheese and fruit (25g)
  • Dinner: Salmon, potatoes, vegetables (40g)
  • Post-workout: Protein shake (25g)

Carbs and Fats

Carbohydrates

Function: Primary energy source, especially for intense exercise

Sources: Grains, fruits, vegetables, legumes, starches

Amount: Flexible — fill remaining calories after protein and minimum fats

Fats

Function: Hormone production, nutrient absorption, satiety

Sources: Oils, nuts, avocado, fatty fish, eggs

Minimum: 0.3g per pound bodyweight for hormonal health

Practical Eating Strategies

Meal Prep

Cook in bulk. Having healthy food ready beats willpower.

Simple approach:

  • Cook 3-4 days of protein on Sunday
  • Prep vegetables
  • Have easy carb sources available (rice, potatoes)
  • Assemble meals as needed

Eating Out

  • Prioritize protein
  • Watch sauces and dressings (calorie dense)
  • Don't stress occasionally — one meal doesn't matter

Hunger Management

  • Protein and fiber increase satiety
  • Volume eating (vegetables, salads)
  • Adequate sleep reduces hunger
  • Stay hydrated

Flexible Dieting

No foods are forbidden. Mostly eat well. Include treats in moderation.

80-90% whole foods, 10-20% whatever you enjoy.

Tracking vs. Not Tracking

When to Track

  • Specific body composition goals
  • Not making progress
  • Learning what's in food
  • Structured phases (cut, bulk)

When Not to Track

  • Maintaining without goals
  • Obsessive tendencies
  • Solid intuitive eating
  • Long-term sustainability

How to Track

Apps like MyFitnessPal, Cronometer, or MacroFactor.

Weigh food for accuracy, at least initially.

Common Mistakes

Protein Too Low

Most people undereat protein. Prioritize it.

All-or-Nothing

Perfect adherence isn't required. Consistency over perfection.

Eliminating Foods

Unless medically necessary, don't cut entire food groups.

Undereating (When Building)

You can't build muscle in a deficit. Eat enough.

Overeating (When Cutting)

Weekends can undo weekday deficits. Stay consistent.

AI Prompt: Nutrition Planning

Help me create a nutrition plan.

My stats: [Weight, height, age, activity level]
My goal: [Fat loss, muscle gain, maintenance, performance]
Dietary restrictions: [Any limitations]
Food preferences: [What you like/dislike]
Lifestyle: [Meal prep ability, eating out frequency]

Create a plan including:
1. Calorie and protein targets
2. Sample daily meal structure
3. Food shopping list
4. Meal prep strategy
5. How to handle eating out and social situations

What's Next

Training breaks you down. Recovery builds you up.

Next chapter: Recovery and rest — the often-ignored half of fitness.

Flexibility and MobilityRecovery and Rest