As of 13 August 2026, AI can plan your low-calorie meals.

What to actually do

1. Hand it to a person

   The route this page recommends

   A person who owns the outcome does this end to end, worth it when the failure is dear.

2. Use a tool built for this

   Second choice

3. Do it yourself

   The distant third

   A chat interface, no skill needed, and roughly 30 minutes until you can act on the result.

   How to actually do it

   1. Write down your established calorie target, dietary pattern, allergies, medical conditions, medicines, foods you dislike, budget, cooking equipment and available cooking time.
   2. Open a chatbot and paste the prompt, replacing every bracketed slot with your own information and writing none where a category does not apply.
   3. Ask the chatbot to regenerate any meal that uses an excluded ingredient, exceeds your available cooking time or requires equipment you do not have.
   4. Compare each ingredient and portion with the packaging or product information you currently use, especially calories, allergens and serving sizes.
   5. Copy the checked meals into a weekly note and turn the grouped shopping list into a list of only the quantities you still need.
   6. Speak to a GP or registered dietitian before following the plan if you are pregnant, have a medical condition, take relevant medicines or have a history of disordered eating; contact NHS 111 for urgent or worrying symptoms.

   Prompt

   Plan a low-calorie week of meals for me using UK ingredients and measurements.
   
   My details:
   - Calorie target: [target supplied by a qualified professional or an established target I already use]
   - Meals and snacks per day: [details]
   - Dietary pattern: [details]
   - Allergies and intolerances: [details]
   - Medical conditions, medicines or pregnancy: [details, or write none]
   - Foods I dislike: [details]
   - Foods I already have: [details]
   - Budget: [details]
   - Cooking time and equipment: [details]
   - Number of people: [details]
   
   Create a practical plan with portions, ingredients, simple preparation instructions and a grouped shopping list. Use UK supermarket foods and metric measurements. Give approximate calories for each meal only when you can calculate them from stated quantities, and label estimates clearly. Do not diagnose me, prescribe a calorie target, or claim that the plan is medically suitable. If my details suggest that a low-calorie diet may be unsafe, say so plainly and tell me to speak to a GP or registered dietitian instead. If I have urgent or worrying symptoms, direct me to NHS 111. Check that every allergy is excluded, the same ingredient is not counted twice in the shopping list, and the plan is realistic for my time, equipment and budget.

   Open it prefilled in ChatGPT or Claude, or copy it into Gemini, which takes no prefill link.