We Chose The Best Diet Replacement Shakes in The UK - 10/2025

SCI-MX Diet Meal Replacement Shake - Chocolate Flavour - High Protein Shake + 24 Essential Micronutrients - Non-GMO - 1KG (18 servings) 209 calories per serving

SCI-MX

50% OffFree Shipping

Why we love it

High protein, low sugar.
Aids healthy thyroid function.
Quick, easy meal replacement.

Main Highlights

🍫 WHAT’S IN THIS CHOCOLATE DIET SHAKE: A comprehensive formula with a healthy balance of protein, carbs, and fat + 24 essential micronutrients. This shake contains 209 kcal, 4.9g fat, 13g carbs, 26g protein / 54g serving + Vitamins A, B6, B12, C, D, E, K, Calcium, Zinc, Folic Acid, Iron, Thiamine, Riboflavin, Niacin, Magnesium, Copper and Selenium. Allergens include soy & milk. Produced in a facility which also handles egg and cereals containing gluten. Allergens include SOY, MILK.
🏋️‍♂️ BENEFITS: Our high protein shake contains added green tea, vitamins, and minerals including Pantothenic Acid, Chromium, and Biotin contributing to the normal maintenance of muscle function, metabolism, blood sugar levels, and reduction of fatigue. This shake is packed with 33% of your recommended intake of Iodine which helps contribute to healthy thyroid function. The inclusion of Folic Acid and Niacin can help reduce tiredness which often occurs when dieting. Suitable for vegetarians.
🥛HOW & WHEN TO USE: This is a quick and easy meal replacement shake. Simply add 2 x scoops (54g) to 300ml of cold water, shake using a protein shaker bottle, and enjoy. An excellent choice to replace higher-calorie meals, ideal if you are on the go. Our shakes give you the nutrients you need to kick-start your weight loss journey. Not intended as a sole source of nutrition, should be consumed alongside at least one balanced nutritious meal.
💚 POWERING EVERY GOAL: Whether you want to build muscle, bulk, reduce body fat or peak your performance, our core focus is on high-protein nutrition. Healthy, balanced, low in sugar, low in saturated fats. Our sports nutrition products are made to complement all types of training and performance goals – whether you’re a casual gym goer, an athlete or sportsperson. Get your Diet Shake Meal Replacement in a range of flavours including; Chocolate, Strawberry or Vanilla.
⭐ WHY SCI-MX: Our goal is to help nurture, support, and inspire the sportsperson in all of us. From recovery to competition training, there’s a SCI-MX product to help you achieve your goal. From high-quality protein powders, pre-workout and post-workout blends like creatine monohydrate to high-protein snacks such as flapjack bars, we've got you covered. Our no-nonsense approach to sports nutrition supplements guarantees you’ll always receive premium quality, great value products.

8.8

Excellent

8.8

Excellent

SCI-MX

SCI-MX Diet Meal Replacement Shake - Chocolate Flavour - High Protein Shake + 24 Essential Micronutrients - Non-GMO - 1KG (18 servings) 209 calories per serving

50% OffFree Shipping

Why we love it

High protein, low sugar.
Aids healthy thyroid function.
Quick, easy meal replacement.

Main Highlights

🍫 WHAT’S IN THIS CHOCOLATE DIET SHAKE: A comprehensive formula with a healthy balance of protein, carbs, and fat + 24 essential micronutrients. This shake contains 209 kcal, 4.9g fat, 13g carbs, 26g protein / 54g serving + Vitamins A, B6, B12, C, D, E, K, Calcium, Zinc, Folic Acid, Iron, Thiamine, Riboflavin, Niacin, Magnesium, Copper and Selenium. Allergens include soy & milk. Produced in a facility which also handles egg and cereals containing gluten. Allergens include SOY, MILK.
🏋️‍♂️ BENEFITS: Our high protein shake contains added green tea, vitamins, and minerals including Pantothenic Acid, Chromium, and Biotin contributing to the normal maintenance of muscle function, metabolism, blood sugar levels, and reduction of fatigue. This shake is packed with 33% of your recommended intake of Iodine which helps contribute to healthy thyroid function. The inclusion of Folic Acid and Niacin can help reduce tiredness which often occurs when dieting. Suitable for vegetarians.
🥛HOW & WHEN TO USE: This is a quick and easy meal replacement shake. Simply add 2 x scoops (54g) to 300ml of cold water, shake using a protein shaker bottle, and enjoy. An excellent choice to replace higher-calorie meals, ideal if you are on the go. Our shakes give you the nutrients you need to kick-start your weight loss journey. Not intended as a sole source of nutrition, should be consumed alongside at least one balanced nutritious meal.
💚 POWERING EVERY GOAL: Whether you want to build muscle, bulk, reduce body fat or peak your performance, our core focus is on high-protein nutrition. Healthy, balanced, low in sugar, low in saturated fats. Our sports nutrition products are made to complement all types of training and performance goals – whether you’re a casual gym goer, an athlete or sportsperson. Get your Diet Shake Meal Replacement in a range of flavours including; Chocolate, Strawberry or Vanilla.
⭐ WHY SCI-MX: Our goal is to help nurture, support, and inspire the sportsperson in all of us. From recovery to competition training, there’s a SCI-MX product to help you achieve your goal. From high-quality protein powders, pre-workout and post-workout blends like creatine monohydrate to high-protein snacks such as flapjack bars, we've got you covered. Our no-nonsense approach to sports nutrition supplements guarantees you’ll always receive premium quality, great value products.

We scanned 878 products

We reviewed these offers relevant to the Diet Replacement Shakes within online retailers such as Amazon, eBay and other local retailers, ensuring we covered all major brands and models. The products we selected come from trusted brands like USN, Protein Works, Huel, NUTRIPHARMA Quick Slim, Premium Body Nutrition, SlimFast, SCI-MX, all of which have a reputation for consistently delivering high-quality products that users love and innovative approaches for function & design.

For the best Diet Replacement Shakes in the market, we considered we took a deep dive into 4391 online reviews , focusing on elements like user satisfaction, performance in real-world conditions, and long-term reliability. Our ranking also evaluates each review’s relevancy, authenticity, up-to-dateness and depth so that the comparison is more sound.

Best Diet Replacement Shakes of 2025

We scanned 878 products

We concluded that: