如何將 Claude 用作膳食規劃工具（以及哪些事情不該信任它）

Not reliably. It estimates a portion weight and multiplies it by a nutrient value recalled from training data, so the numbers read as precise but are guesses stacked on guesses. If the figures matter, look foods up in the USDA's free FoodData Central database at fdc.nal.usda.gov, or scan barcodes in a tracking app. A good habit is to tell Claude in the prompt not to include calorie or macro numbers at all, so the plan does not carry false precision.

Use it for logistics, not for clinical decisions. Claude is not a dietitian or a doctor, it cannot see your bloodwork or medication, and it does not know current product recalls or this month's allergen labelling. If anyone eating is managing diabetes, kidney disease, coeliac disease or an eating disorder, is pregnant, or has a diagnosed allergy, have a qualified professional review the plan and read every physical label yourself.

Six things: how many people and their appetites, the shape of your week (which nights are 25-minute nights, which night you can cook properly, who is out when), your hard nos including allergies, your equipment, what is already in the fridge and cupboard, and which supermarket you use. Without those it produces a magazine plan for a household that does not exist and it collapses by Tuesday.

It is a ZIP file containing a SKILL.md at the root. In the Claude desktop app, open Customize then Skills, add a skill, upload the ZIP, and toggle it on. Skills need code execution enabled, under Settings then Capabilities. Anthropic's help centre currently lists Skills on Free, Pro, Max, Team and Enterprise, while its Academy tutorial lists Pro, Max, Team and Enterprise, so if you are on the free plan check Settings then Capabilities for your own account rather than trusting either page. Where the Skills menu is not available, or in ChatGPT or Gemini, open the SKILL.md in a text editor and paste its contents into custom instructions instead.

USDA food safety guidance says cooked leftovers keep 3 to 4 days in the fridge or 3 to 4 months in the freezer. Perishable food should be refrigerated within two hours of cooking, or one hour if the room is above 90F/32C, because 40-140F (4-60C) is the range where bacteria multiply fastest. Divide hot food into shallow containers so it cools quickly rather than refrigerating a whole stockpot.

Yes. The skill is a Markdown instruction file, not code. In Claude you upload the ZIP under Customize then Skills, with code execution enabled under Settings then Capabilities. In ChatGPT or Gemini you paste the SKILL.md contents into a custom GPT's instructions or a Gemini Gem. The plans it produces are the same; only the loading step differs. Every KissMySkills purchase carries a 30-day money-back guarantee.