Eating well doesn't have to mean eating boring. These prompts help you build meal plans that match your goals, budget, and taste buds without spending hours on prep. Tested across ChatGPT, Gemini, and Claude so you pick the right model for your dietary needs. Important: AI can't replace a registered dietitian, especially for medical conditions or eating disorders.
| What you're trying to do | الأفضل لـ |
|---|---|
| Calculate personalized macro targets | ChatGPT |
| Design a weekly meal prep system | Gemini |
| Find what's wrong with your current diet | Claude |
| Build a budget-friendly healthy grocery list | Gemini |
| Build a healthy snacking system | ChatGPT |
| Evaluate supplements for your needs | Claude |
أوامر
Calculate personalized macro targets
Help me figure out my daily macronutrient targets. Goal: [fat loss / muscle gain / maintenance / recomposition] Current stats: [age, sex, height, weight] Activity level: [sedentary / lightly active / moderately active / very active] Training: [type and frequency of exercise] Diet preference: [no restriction / keto / vegan / vegetarian / paleo / other] Meals per day: [number of meals and snacks] Calculate and provide: 1. Estimated TDEE with the formula and reasoning shown 2. Recommended daily calories with adjustment for goal 3. Macro split in grams: protein, carbs, fat (with percentage breakdown) 4. A sample day of eating that hits these macros exactly 5. How to adjust macros on training vs. rest days 6. When and how to recalculate as my body changes
الأفضل لـ: CHATGPT
ChatGPT shows its math clearly when calculating TDEE and macros, making it easy to verify the numbers. Its sample meal plans hit macro targets with practical, easy-to-find foods.
Tested Feb 15, 2026
نصائح احترافية
Be honest about your activity level. Most people overestimate by one category, which inflates calorie targets by 300-500 calories. If you sit at a desk most of the day, you're 'sedentary' even if you work out 4x a week.
Design a weekly meal prep system
Design a meal prep system for my week. Calorie target: [daily calories] Macro targets: [protein/carbs/fat in grams, if known] Diet restrictions: [allergies, intolerances, preferences] Cooking skill: [beginner / intermediate / advanced] Prep time available: [hours on prep day] Budget: [weekly grocery budget] Household size: [cooking for how many people] Create: 1. A 5-day meal plan with breakfast, lunch, dinner, and snacks 2. A consolidated grocery list organized by store section 3. A prep-day timeline: what to cook in what order 4. Storage instructions and shelf life for each prepped item 5. Three meals that freeze well for backup 6. Quick 10-minute fallback meals when prep runs out
الأفضل لـ: GEMINI
Gemini creates the most organized meal prep systems with logical cooking timelines and grocery lists grouped by store aisle. Its prep-day schedules minimize active cooking time through smart batching.
Tested Feb 15, 2026
نصائح احترافية
Tell AI your actual cooking skill level. If you say 'intermediate' but can barely boil pasta, you'll get recipes you won't make. Honest input means meals you'll actually prepare and eat.
Find what's wrong with your current diet
Analyze my current diet and tell me what to fix. Typical day of eating: [List everything you eat and drink with approximate portions and times] Goal: [fat loss / muscle gain / more energy / better sleep / general health] Current issues: [fatigue, bloating, cravings, weight stall, etc.] Exercise routine: [type and frequency] Sleep: [hours and quality] Water intake: [daily amount] Analyze and provide: 1. Estimated calorie and macro breakdown of my current intake 2. The top 3 nutritional gaps or problems in my diet 3. Specific food swaps that fix each issue (not just 'eat more vegetables') 4. Meal timing adjustments based on my schedule and training 5. A 'quick win' change I can make today for immediate improvement 6. A disclaimer about consulting a healthcare provider for persistent issues
الأفضل لـ: CLAUDE
Claude provides the most balanced diet analysis without pushing extreme changes. It identifies the smallest adjustments that create the biggest impact and appropriately flags when professional guidance is needed.
Tested Feb 15, 2026
نصائح احترافية
Log everything for 3 real days, including that handful of chips and the cream in your coffee. AI can only analyze what you report, and most people undercount by 500+ calories when estimating from memory.
Build a budget-friendly healthy grocery list
Build me a healthy grocery list that fits my budget. Weekly budget: [$amount] Household size: [number of people] Diet goals: [what you're trying to achieve nutritionally] Diet restrictions: [allergies, preferences, foods you hate] Store preference: [where you usually shop] Cooking frequency: [meals cooked at home per week] Provide: 1. A prioritized grocery list: essentials first, nice-to-haves last 2. Cost-per-serving breakdown for the most expensive items 3. Bulk buying recommendations and what's worth buying in bulk 4. Seasonal produce suggestions for the current month 5. A pantry staples checklist that makes any meal possible 6. Three money-saving swaps that don't sacrifice nutrition
الأفضل لـ: GEMINI
Gemini provides the most practical budget breakdowns with realistic price estimates. Its seasonal produce recommendations and bulk buying suggestions are specific and immediately actionable.
Tested Feb 15, 2026
نصائح احترافية
Specify your actual grocery store. Prices at Whole Foods vs. Aldi can differ by 40%. AI calibrates portion sizes and product recommendations based on where you shop.
Build a healthy snacking system
Help me build a snacking strategy that supports my goals. Goal: [fat loss / muscle gain / sustained energy / reduce sugar cravings] Current snacking habits: [what you snack on and when] Biggest craving: [sweet / salty / crunchy / chocolate / carbs] Work environment: [office / remote / on the go] Macro targets: [if tracking macros] Allergies or restrictions: [list any] Design: 1. 10 snack options organized by goal (protein-rich, energy-boosting, low-calorie) 2. A snack prep plan for the week (what to batch-make Sunday) 3. Smart swaps for my current cravings that satisfy without derailing 4. Portion control strategies that don't require measuring everything 5. A desk drawer / bag essentials list for emergency healthy snacking 6. When to snack vs. when hunger means you need a real meal
الأفضل لـ: CHATGPT
ChatGPT generates the most creative snack ideas with specific brand recommendations and portion sizes. Its craving-swap suggestions actually taste good rather than just checking a nutritional box.
Tested Feb 15, 2026
نصائح احترافية
Include your biggest craving trigger (boredom, stress, 3pm slump). AI builds better strategies when it knows WHY you snack, not just WHAT you snack on. The solution for stress-eating is very different from the solution for afternoon energy crashes.
Evaluate supplements for your needs
Help me figure out which supplements are actually worth taking. Goal: [performance / recovery / general health / specific deficiency] Current diet: [brief overview of daily eating] Training: [type and frequency] Current supplements: [what you already take] Budget for supplements: [monthly amount] Health conditions: [any relevant conditions or medications] Provide: 1. Which of my current supplements are worth keeping and which are a waste of money 2. 3-5 supplements with the strongest evidence base for my specific goals 3. Recommended dosages, timing, and whether to take with food 4. Potential interactions between supplements and with any medications 5. Red flags in supplement marketing claims to watch for 6. A clear disclaimer: this is informational, not medical advice — consult a doctor before starting any supplement regimen
الأفضل لـ: CLAUDE
Claude provides the most evidence-based supplement guidance and is transparent about what the research actually supports vs. what's just marketing hype. It consistently recommends consulting a healthcare provider.
Tested Feb 15, 2026
نصائح احترافية
Tell AI every medication you take. Supplement-drug interactions are real and dangerous. AI can flag potential concerns, but always verify with your doctor or pharmacist before adding anything new.
Based on actual testing — not assumptions. See our methodology
Gemini
Best for meal prep logistics and grocery budgeting. Creates well-organized shopping lists and cooking timelines with realistic cost estimates. Less nuanced with complex dietary restrictions.
Results from Gemini 2.0 Flash · Tested Feb 15, 2026ChatGPT
Best for macro calculations and creative meal ideas. Shows math clearly and generates diverse food options with specific brands and products. Can suggest overly complex meals for beginners.
Results from GPT-4o · Tested Feb 15, 2026Claude
Best for diet analysis and supplement guidance. Provides the most balanced, evidence-based recommendations and consistently flags when professional advice is needed. Sometimes overly cautious in recommendations.
Results from Claude 3.5 Sonnet · Tested Feb 15, 2026Grok
Cuts through diet fads with refreshingly blunt, honest nutrition advice. Excellent at debunking supplement myths and giving straight answers, though less thorough on clinical dietary restrictions than Claude.
Results from Grok 2 · Tested Feb 15, 2026AI nutrition advice is educational, not medical. AI models are not dietitians and cannot account for medical conditions, medications, or eating disorder histories. Use AI-generated meal plans as a starting framework, and consult a registered dietitian for personalized clinical guidance.
Track before you optimize. Log your current eating for 3-5 days before asking AI to build you a plan. You can't improve what you haven't measured, and AI gives dramatically better advice when it sees your real habits, not your ideal ones.
The best diet is the one you'll actually follow. AI can build you a perfect macro-balanced meal plan, but if you hate every meal on it, you'll quit by day four. Always include foods you enjoy in your prompt so AI works around your preferences instead of against them.