Make sense of a food label for the thing you're buying

Help me read this food label.

Label figures: [paste per 100g / per portion]
My question: [e.g. salt, sugar, allergens]
Who it's for: [optional]

Ask me up to 3 short questions first if anything important is missing. Wait for my answers.

Then:
1. A plain walkthrough of the figures I pasted.
2. Portion tricks to watch.
3. Allergen lines if present.
4. Explicit: not personal medical advice; follow clinician rules if I have them.

Only use what I've told you, leave blanks for anything I haven't given, and don't invent diagnoses, doses, calorie targets or treatment plans. This is help with preparation, planning and wording, not medical, diet or treatment advice; check the NHS website, speak to a pharmacist, or contact NHS 111; call 999 if it feels like an emergency. UK English.

Stay in this ChatGPT chat. Do not turn on apps or connectors, and do not use memory from another chat.