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Last updated: 10 October 2026

General education

This website and its guides provide general information. They do not diagnose, treat or prescribe. Content has not been independently clinically reviewed. Do not use it to replace advice from a qualified clinician or registered dietitian.

Sardines and the sardine fast

Sardines can be part of a nutritious, varied diet. Evidence about a nutrient or about fish consumption does not establish the same benefit for an exclusive sardine fast. We do not guarantee weight loss, remission, a cure or a particular result.

Oily fish and personal circumstances

Follow current UK oily-fish portion guidance. Most adults should have no more than four portions weekly; girls and women who may become pregnant, are pregnant or breastfeeding should have no more than two. A portion is around 140g. Sardines contain fish allergens. Individual advice matters for gout, kidney disease, pregnancy, restricted diets and other health circumstances.

Medicines and individual needs

Speak with your healthcare team before substantially reducing carbohydrate if you take diabetes medicines. Do not stop or adjust prescribed treatment yourself. Seek individual advice for pregnancy, an eating disorder, kidney disease, food allergies or other circumstances that affect your diet.

Meal ideas and food safety

Meal ideas are not nutritionally analysed prescriptions. Adjust portions to your needs, check allergen labels and follow current food safety advice. Images illustrate the subject and are not proof of outcomes.

Urgent help

The website is not an urgent medical service. In a UK emergency call 999. For urgent medical advice, use NHS 111 or the appropriate local service.

Sources and corrections

We link evidence where relevant and distinguish it from practical suggestions. Please use the contact page to raise a correction.