Best Meal Replacement Shakes UK 2026
A practical comparison of meal replacement shakes available in the UK — what they do, how they differ, and how to choose the right one for your routine.
Quick answer: Formula 1 by Herbalife sits in the middle ground of UK meal replacement shakes — around 222 calories per serving with milk, 18g protein, and over 10 flavours. It is lower calorie than Huel and higher protein than most supermarket options. A 550g tub gives approximately 21 servings at £24.96.
What meal replacement shakes actually do
A meal replacement shake replaces one or two meals per day with a controlled, nutritious alternative. The benefit is structure — you remove the guesswork from one meal slot, which makes it easier to manage calories without tracking everything obsessively.
They work best when the rest of your diet is sensible. A shake for breakfast and a takeaway for dinner is not a plan. A shake for breakfast and a balanced evening meal is. The NHS Eat Well guidance is a useful reference for what a balanced daily diet looks like alongside a meal replacement routine.
A meal replacement only reduces calories if it replaces a meal — not if it is added on top of one.
How Formula 1 compares to other UK shakes
Formula 1 (Herbalife)
~222 kcal, 18g protein per serving with semi-skimmed milk. Over 10 flavours. 21 servings per 550g tub.
Huel Ready to Drink
~400 kcal, 20g protein per bottle. Fewer flavours. Higher calorie — better suited as a full meal than a light replacement.
Slim-Fast
~200 kcal, 10g protein per serving. Limited flavour range. Lower protein than Formula 1.
Supermarket own-brand
Variable — check labels carefully. Protein content and nutritional completeness vary significantly between products.
Formula 1 sits in the middle ground — lower calorie than Huel, higher protein than most supermarket options, and more flavour choice than either.
Current Formula 1 prices
Why buy from us?
Every product is genuine Herbalife with fast UK delivery. No membership fees, no minimum order. All customer reviews are verified purchases.
See our Herbalife FAQ or customer results before you order.
Frequently asked questions
Do meal replacement shakes work?
They can help by making one meal structured and predictable, which reduces overall calorie intake without requiring obsessive tracking. Results depend on the whole day, consistency, and whether the plan is sustainable long-term.
How many shakes per day should I have?
Most people start with one per day replacing breakfast or lunch. Two per day is common for a more structured weight management routine. Always maintain a balanced diet for your remaining meals.
How long does a 550g tub of Formula 1 last?
Approximately 21 servings — three weeks at one shake per day, around ten days at two per day. Plan your reorder before you run out to avoid a gap in your routine.
Is Formula 1 suitable for vegetarians?
Yes. Formula 1 is suitable for vegetarians. It is not suitable for vegans as it contains dairy derivatives. Always check the current product label for the specific flavour you are considering.
How does Formula 1 compare to Huel?
Formula 1 prepared with semi-skimmed milk provides around 222 calories and 18g protein per serving. Huel Ready to Drink provides around 400 calories and 20g protein per bottle. Formula 1 is lower calorie and better suited as a light meal replacement; Huel is higher calorie and more suitable as a complete meal.
Can I use Formula 1 if I am vegan?
Standard Formula 1 contains dairy derivatives and is not suitable for vegans. The Vegan Protein Drink Mix (560g) is a plant-based alternative available from the same range at £30.96.
