High Protein on a Budget: 12 AI Prompts with Number-Checked Examples (ChatGPT, Gemini, Claude)

Plan a high-protein week on a budget, rank your store's foods by protein per dollar, and catch the AI when its numbers are wrong. 12 prompts, each with an example answer whose numbers we checked against USDA food data.

What it is

A 34-page PDF kit (US Letter; A4 and phone versions included) of 12 copy-paste prompts for planning, shopping and tracking high-protein food on a budget with ChatGPT, Gemini or Claude. Each prompt comes with what we typed, a shortened example answer, and how to adjust it.

What makes it different

• Numbers you can check. Every protein, calorie and price figure in the example answers was recomputed from USDA FoodData Central and US Bureau of Labor Statistics average prices (August 2026). The Sources page lists the food IDs and price series.
• Protein per dollar AND per calorie. The reference table shows what 30 g of protein costs and how many calories come with it, so the cheapest protein does not quietly become the cheapest calories.
• Check steps built in. AI assistants make arithmetic and raw-vs-cooked mistakes. The planning, shopping and photo prompts make the AI show its math, and Prompt 11 audits any plan line by line.
• Photo estimates with an honesty step. Prompt 8 makes the AI list the grams and oil it assumed before giving totals, so you can correct them. (In a 2025 study, adding ingredient amounts cut the average calorie error of photo estimates from 30.5% to 13.9%.)

The 12 prompts

1. Set your protein target (with sources and a health check first)
2. The budget protein week (7-day plan, 2 batch dishes, priced shopping list)
3. Protein per dollar at your store (works with any country's prices)
4. Check your grocery receipt
5. Sunday batch-cook plan (with USDA food safety storage times)
6. Order from a restaurant menu
7. Leftovers into a protein meal
8. Photo estimate with the honesty step
9. Cheaper swap, same protein
10. Switch the plan to your diet (vegetarian, halal, no pork, lactose-free and more)
11. Audit the AI's math
12. Weekly check-in

Also included

• Protein-per-dollar reference table (US average prices) and a fill-in table for foods you price yourself
• A "My week" fill-in page
• The PDF in US Letter, A4 and a phone size
• All 12 prompts as a plain-text file and a Markdown file for Notes, Google Docs or Notion

What it is not

Not medical or nutrition advice, and no promises of weight loss or muscle gain. If you have a medical condition, are pregnant, or take medicines, talk to a doctor or dietitian before changing your protein intake. Prices in the examples are US averages; your store will differ, which is what Prompt 3 is for.

FAQ

Do I need a paid AI plan? No. The prompts work with the free versions of ChatGPT, Gemini and Claude. The photo prompts need an assistant that accepts images.

I am not in the US. Does it work? Yes. The prompts ask for your country, store and prices. Only the reference table uses US prices.

Is this a meal plan? It is a set of prompts that build a plan around your budget, store, target and diet. One full example week is included: about 137 g protein a day, 48.49 USD at the checkout at US average prices (oil and spices not included).

Is it written by AI? The prompts, structure, checks and notes are ours. The example answers were generated with Claude (one model) and then every number was recomputed by us from USDA and BLS data. Other assistants will word answers differently.

Refunds? 14 days, no questions asked: write to aibezstrestu@gmail.com with your order number.