Fat Loss & Diet Products: a simple buying guide
Share
Fat burners and diet products in one place: fat burner capsules and powders, L-carnitine, green tea and caffeine-based formulas, diet protein and meal replacement shakes, glucomannan fibre and low-calorie foods. They are tools that can fit around a calorie-controlled diet and regular training, which remain the basis of any weight management plan.
Most "fat burner" products are blends, often built around caffeine, green tea extract, L-carnitine or capsaicin, so the label tells you far more than the name. There are no authorised health claims for these fat burner ingredients, so we describe them by what they contain. A few products can carry authorised claims under strict conditions: in the context of an energy-restricted diet, glucomannan contributes to weight loss, with the beneficial effect obtained from 3 g daily taken in three doses of 1 g with one to two glasses of water before meals. Glucomannan should be taken with plenty of water, and labels warn of a risk of choking for people with difficulty swallowing. Diet protein shakes help you add protein with fewer calories, and protein contributes to the maintenance of muscle mass. Many fat burners contain high levels of caffeine and are not recommended for children or pregnant or breastfeeding women. Read our guide to fat loss supplements for what the evidence and the authorised claims support.
Shop the range: Fat Loss & Diet at NE Commerce
How to compare diet products
- Caffeine per serving: add up caffeine from all sources, including coffee and pre-workout.
- Stimulant-free options: look for non-stim or stim-free versions if you are sensitive to caffeine.
- Diet protein: compare calories and protein per serving.
- Meal replacements: check whether the product is formulated as a meal replacement for weight control.
Related ranges and guides
- L-Carnitine
- Weight Management
- Whey Protein Isolate
- Protein powder for weight loss
- L-carnitine explained
Food supplements should not be used as a substitute for a varied and balanced diet and a healthy lifestyle.
FAQs
Do fat burners work?
There are no authorised health claims for fat burner ingredients such as caffeine, green tea extract or L-carnitine, so we do not make fat-loss claims for them. Weight loss comes from a sustained calorie deficit; some people use these products alongside diet and training.
What is the best fat burner in the UK?
We do not rank fat burners. Compare the ingredients and caffeine per serving, whether it is stimulant-free, and the serving directions, and choose one that suits your caffeine tolerance.
Are fat burners safe to take with caffeine?
Many fat burners already contain caffeine, so taking them with coffee, energy drinks or pre-workout adds up quickly. Check the caffeine per serving, stay within the label directions, and speak to a doctor if you have a medical condition or take medication.
Does glucomannan help with weight loss?
Glucomannan has an authorised claim: in the context of an energy-restricted diet it contributes to weight loss, when 3 g is taken daily in three doses of 1 g with one to two glasses of water before meals.
Ready to compare? Browse our full Fat Loss & Diet range.