Prompt Library

Nutrition Prompts for Eating Decisions You Can Stick With

20 copy-paste prompts

20 ChatGPT prompts for macro tracking, meal planning, dietary restrictions, label analysis, and evidence-based nutrition guidance without fad diet noise.

Meal Planning

5 prompts

Macro-Targeted Meal Plan

1/20

Create 7-day meal plan. Macros: [protein / carbs / fat targets]. Calorie target: [number]. Dietary preferences: [describe]. Restrictions: [allergies, dislikes]. Cooking time max: [minutes]. Deliver: 7 days with breakfast, lunch, dinner, 2 snacks, actual macro breakdown per meal, grocery list organized by section, prep-ahead tips.

Creates 7-day macro-targeted meal plans with grocery lists and prep tips.

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Pro tip: Macros without calorie target = inconsistency. Calculate BMR + TDEE first (Mifflin-St Jeor formula), then macros. Guessing macros leads to weight plateaus and frustration.

Macro Calculator

2/20

Calculate my macros. Stats: age [X], weight [Y], height [Z], activity level [sedentary/moderate/active]. Goal: [lose fat / build muscle / maintain]. Deliver: BMR, TDEE, target calories, macro breakdown (protein g/kg body weight), carb/fat split, eating window suggestion if relevant. Actionable numbers.

Calculates personalized macros with BMR, TDEE, and goal-adjusted targets.

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Pro tip: Protein at 0.8-1g per lb bodyweight for fat loss; 0.7-0.9g for maintenance. Hit protein first, fill remaining calories with carbs + fats per preference. Protein first = sustainable.

High-Protein Meals

3/20

Generate 15 high-protein meals (40g+ protein each). Dietary preferences: [describe]. Include: chicken, fish, beef, plant-based options. Per meal: ingredients, protein grams, calories, prep time, how to vary. Mix of savory + sweet, easy + effortful.

Generates 15 high-protein meals (40g+) across protein sources and prep times.

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Pro tip: Most people hit protein targets at dinner and miss at breakfast. 40g-protein breakfasts (Greek yogurt + whey + berries, eggs + cottage cheese) change the game.

Meal Prep Sunday

4/20

Meal prep Sunday plan. Time: [hours]. Number meals: [count]. Macro targets: [describe]. Include: shopping list, cooking order (most time-intensive first), storage/portioning, reheating instructions per meal, variety across week (avoid "same lunch 5 days"), backup pantry meals.

Plans Meal Prep Sunday with cooking order, storage, and variety.

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Pro tip: Meal prep works when prepped meals vary. Chicken + rice + broccoli for 5 days = quit by Wednesday. Prep components (protein, carbs, veggies) + assemble varied lunches. Sustainable.

Eating Window / IF Plan

5/20

Plan intermittent fasting schedule. Goal: [describe]. Lifestyle: [work hours, exercise timing]. Include: eating window (16:8, 18:6, OMAD), breakfast vs skip-breakfast IF, how to handle social events, coffee/drinks during fast, breaking fast foods, transition plan. Evidence-based.

Plans intermittent fasting with eating window, social events, and transitions.

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Pro tip: IF works for some, backfires for others. Women under-eat on IF more than men. Energy crashes = eat earlier. Listen to body; IF isn't universally optimal.

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Dietary Restrictions

5 prompts

Vegetarian Macro Hit

6/20

Hit macros as vegetarian. Targets: [protein, calories]. Vegan or vegetarian? Include: high-protein plant sources ranked by absorption, protein-per-$ efficiency, vitamin B12/iron/zinc consideration, daily meal structure hitting targets, supplementation if needed.

Plans vegetarian/vegan macro hitting with absorption, nutrients, and supplementation.

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Pro tip: Vegetarians miss iron + B12. Vegans also miss zinc + omega-3. Supplement proactively; don't wait for deficiency. Blood test yearly if plant-based long-term.

Keto Diet Plan

7/20

7-day keto plan. Macros: <20g net carbs, 70-75% fat, 20-25% protein. Calorie target: [number]. Include: breakfast (easy, high-fat), lunch, dinner, fat bombs/snacks, grocery list, what to avoid (hidden carbs), electrolyte management (keto flu prevention).

Creates 7-day keto meal plans with electrolyte management.

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Pro tip: Keto flu (first 2 weeks) is salt + water depletion. 4-6g sodium daily + plenty of water + magnesium/potassium prevents headaches and fatigue.

Gluten-Free Made Simple

8/20

Gluten-free eating without weight gain. Common mistake: replacing wheat with sugar-heavy GF substitutes. Include: naturally GF foods, avoiding processed GF junk, macro-balanced GF meals, restaurant navigation, hidden gluten, cross-contamination for severe celiac.

Makes gluten-free eating simple without sugar-heavy substitutes.

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Pro tip: GF packaged foods often contain more sugar/fat than regular. Naturally GF foods (rice, potatoes, meat, vegetables) > processed GF substitutes. Simpler + healthier + cheaper.

Plant-Based Transition

9/20

Transition to plant-based diet over [timeframe]. Starting point: [current eating]. Include: phased reduction of animal products, protein replacement strategy, social eating management, nutrient tracking (B12, iron, omega-3), avoiding vegan junk food trap, reality-checking motivations.

Plans plant-based transitions with phased approach and nutrient management.

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Pro tip: Plant-based transitions succeed gradually. "Vegan overnight" has high failure rates. Start with 2-3 plant-based days/week, build to 7. Sustainable transition > perfect attempt.

FODMAP / IBS Navigation

10/20

Navigate FODMAP for IBS symptoms. Phase: [elimination / reintroduction / long-term]. Include: elimination phase foods allowed, reintroduction testing protocol, identifying personal triggers, meal ideas within restrictions, dining out strategy, working with dietitian suggestion.

Navigates FODMAP protocol for IBS with elimination, reintroduction, and dining.

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Pro tip: Low-FODMAP elimination phase = 2-4 weeks, not forever. Reintroduce systematically to find YOUR triggers. Permanent restriction unnecessarily limits diet. Work with dietitian if symptoms persist.

Shopping & Label Reading

4 prompts

Grocery List by Goal

11/20

Build grocery list aligned to [goal]. Budget: [amount/week]. Household: [size]. Include: proteins (best $/g), carbs (whole food focus), fats (healthy sources), vegetables (seasonal), fruits, pantry basics, occasional treats (realistic, not restrictive). Shop the perimeter.

Builds grocery lists aligned to goals with budget and whole-food focus.

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Pro tip: Shop perimeter of grocery store — produce, meat, dairy. Avoid middle aisles (processed). Rule: ingredient list over marketing. Short ingredient lists = real food.

Nutrition Label Decoder

12/20

Teach me to read nutrition labels. Include: serving size trap (multiply if eating more), added sugar vs natural, "low fat" = high sugar trick, fiber significance, sodium awareness, understanding ingredient order, hidden names for sugar (20+ names), health claim BS.

Decodes nutrition labels with serving sizes, hidden sugars, and claim skepticism.

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Pro tip: "Healthy" labels are marketing. Ingredient list is truth. If sugar is in top 3 ingredients by any name (corn syrup, dextrose, fructose) = candy. Period.

Protein Per Dollar Ranking

13/20

Rank protein sources by $ per gram of protein. Include: eggs, chicken thighs/breast, ground beef, canned tuna, whey protein, Greek yogurt, cottage cheese, beans, lentils, tofu. Per source: protein per serving, calories, price, versatility. Budget-optimized protein.

Ranks protein sources by cost-effectiveness with versatility notes.

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Pro tip: Cheapest proteins (eggs, chicken thighs, cottage cheese, canned tuna, whey) win budget battles. Skip "lean beef" and "salmon" daily — unnecessary premium for macro goals.

Restaurant Macro Estimation

14/20

Estimate restaurant meal macros. [Describe dish]. Include: likely calorie range, protein estimate, carb/fat estimate, sodium warning, modifications to reduce/adjust (sauce on side, double vegetables), ordering for goals. Imperfect but useful tracking.

Estimates restaurant meal macros with modification suggestions.

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Pro tip: Restaurant meals are 30-50% higher calorie than same dish cooked at home. Double your estimate when guessing. Eating out 2×/week = 500+ extra cal/week tracking gap.

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Troubleshooting & Science

4 prompts

Plateau Breaking

15/20

Break weight loss plateau. Current: [describe diet/exercise]. Weeks stalled: [count]. Include: calorie creep check (weigh all food for 1 week), metabolic adaptation reality, refeed day strategy, exercise variation, sleep + stress audit, 2-week diet break (maintenance) if warranted.

Breaks weight plateaus with calorie audits, refeeds, and diet breaks.

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Pro tip: Plateaus are 80% calorie creep (unreported snacks, oils while cooking, drinks). Weigh everything for 1 week — shocking what you find. Fix reporting; plateaus break.

Food Sensitivity Investigation

16/20

Investigate food sensitivities. Symptoms: [describe]. Include: elimination diet protocol, food journal approach, common culprits (dairy, gluten, FODMAPs, eggs, nightshades), reintroduction testing, when to see allergist/dietitian, distinguishing sensitivity from allergy.

Investigates food sensitivities with elimination, journaling, and reintroduction.

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Pro tip: Food sensitivity tests (blood, hair) are mostly unreliable. Elimination + reintroduction is gold standard. 4-week elimination → reintroduce one food at a time over weeks.

Hydration Optimization

17/20

Optimize hydration. Weight: [X]. Activity: [describe]. Climate: [describe]. Include: daily target (half bodyweight in oz rule), electrolyte needs (active, hot weather), water vs other fluids, hydration timing (morning, pre-workout), signs of dehydration, overhydration risks (rare).

Optimizes hydration with calculated targets and electrolyte considerations.

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Pro tip: Half-bodyweight-in-oz rule gets most people to optimal. Active + hot climate = more. Electrolytes matter for athletes; water-only dilutes sodium during long exercise.

Supplements Worth It?

18/20

Which supplements actually worth it? Current diet: [describe]. Goals: [describe]. Include: evidence-based supplements (creatine, whey, vitamin D, omega-3, magnesium), overhyped supplements to skip, personalized based on diet gaps, third-party tested brands, when blood test first. Evidence-first.

Evaluates supplements worth taking with evidence-based recommendations.

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Pro tip: Creatine + vitamin D + omega-3 + magnesium = most-researched effective supplements for most people. Everything else is 90% marketing. Save money on BCAAs, fat burners, "testosterone boosters."

Frequently Asked Questions

No — for medical conditions (diabetes, kidney disease, eating disorders) work with registered dietitian. For general healthy eating and macro planning, ChatGPT provides evidence-based guidance. Use AI for education, humans for diagnosis and medical intervention.
Not forever, but 2-4 weeks of tracking teaches portion awareness. Most people underestimate intake by 20-40%. After learning, intuitive eating possible. Complete strangers to nutrition benefit most from initial tracking.
The one you'll stick to for years. Keto, vegan, paleo, Mediterranean — all work if sustained. Ignore "optimal" debates; prioritize adherence. Boring consistent diet > perfect unstainable diet.
0.7-1g per pound bodyweight for active adults (weight training, athletics). 0.5-0.7g for sedentary maintenance. Higher ranges for fat loss (preserves muscle) and aging adults. Most under-consume protein.
Mostly marketing. Blueberries are great; so are apples. Açaí is good; so is raspberries. Eat variety of whole foods; don't chase exotic expensive superfoods. $5 of frozen berries > $15 of açaí bowl.

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