Diet Protein Powder

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6 products
The Health Project Ultimate Diet+ Protein 2kg - Discount SupplementsThe Health Project
The Health Project Ultimate Diet+ Protein 2kg - Discount SupplementsThe Health Project
£15.00 Off
4 Flavours Available
XL Nutrition XTRA Diet Whey 2kg - Discount SupplementsXL Nutrition
XL Nutrition XTRA Diet Whey 2kg - Discount SupplementsXL Nutrition
£15.00 Off
3 Flavours Available
Sci - MX Diet Protein Meal Replacement 2kg - Discount SupplementsSci - MX
Sci - MX Diet Protein Meal Replacement 2kg - Discount SupplementsSci - MX
Soldout
6 Flavours Available
USN Diet Fuel Ultralean Protein 2kg - Discount SupplementsUSN
USN Diet Fuel Ultralean Protein 2kg - Discount SupplementsUSN
Soldout
3 Flavours Available
USN Diet Fuel Ultralean Protein
From £21.99 £25.99
Applied Nutrition Diet Whey Protein 1.8kg - Discount SupplementsApplied Nutrition
Applied Nutrition Diet Whey Protein 1.8kg - Discount SupplementsApplied Nutrition
£6.00 Off
4 Flavours Available

Fuel your training and effectively manage your weight loss goals with diet protein powder. Designed specifically to boost your workout, and help develop lean muscle, shop our collection now to find your ideal protein powder for weight loss.


Diet whey protein powder comes with a variety of benefits, whether you’re following a specific diet or simply want to lose weight.

  • Calorie control - low in sugar and fat, but high in protein, diet protein powder typically contains just over 100 calories and will help keep you full throughout the day

  • Lean muscle - lean protein powder has all the same great benefits of whey protein, helping muscles to grow and repair for a leaner physique

  • Faster recovery - by delivering essential amino acids into the bloodstream, diet protein powder restores important nutrients and reduces soreness post-workout

  • Complete amino profile - many diet protein powders contain all essential amino acids so muscles get everything they need for recovery and growth

  • Convenient - Quick and easy to prepare, you can take diet protein powder on the go to fuel your workout and keep your training regime on track


Using protein powder for weight loss can support you with a sustainable weight loss journey. Low-sugar, low-fat protein powder helps to curb cravings, keeps you fuller for longer, and can be used as a meal replacement shake or a low-calorie snack after training.


Containing a range of essential vitamins, minerals and nutrients, incorporating a low calorie protein powder into your routine gives you an extra nutritional boost that contributes to improved wellbeing. 


Perfect for everyday gym users or athletes and bodybuilders, shop diet protein powder in a choice of delicious flavours, at Discount Supplements now to achieve your weight loss and training goals. 

Frequently Asked Questions

What is diet protein powder?

Diet protein powder is a specially formulated protein designed to support weight loss or weight management. Low calorie protein powder may contain additional ingredients that help with fat-burning, appetite control, or metabolism boosting. It is typically derived from sources such as whey, casein, soy, or plant-based proteins like pea or rice. Diet protein powders offer a convenient way to increase protein consumption without significantly increasing caloric intake.

What does diet protein powder do?

A diet protein powder can help with weight management, fat loss, and muscle maintenance as well as support overall nutrition. The high protein content boosts fullness and reduces hunger cravings, and as it's low in calories and carbs it can effectively contribute to a calorie deficit. Amino acids in diet protein powder increase endurance during workouts and also aid muscle growth and recovery for improved strength.

Is diet protein powder good for weight loss?

When used correctly, diet protein powder can be very effective for weight loss. Your body burns more calories to digest protein and it also helps you feel fuller so you're less likely to give in to cravings. Protein also builds muscle which improves your metabolism. Lean protein powder has a low calorie, low fat content so you can consume the recommended amount of protein without surplus calories. Some variations of diet protein powder, such as The Health Project Ultimate Diet+ Protein, contain green tea extract, CLA, and L-carnitine to enhance fat burning in the body, and can be used as a low-calorie meal replacement or snack alternative.

Can diet protein powder be used as a meal replacement?

Diet protein powder can be used as a meal replacement, and some protein powders are designed specifically for this purpose. Others may need additional ingredients to be a nutritionally complete meal. When combined with fruits, vegetables, healthy fats, and complex carbohydrates, diet protein powder can serve as a convenient option for a quick meal replacement, particularly for people with busy lifestyles or specific dietary goals.

How do I use diet protein powder?

To use diet protein powder, you simply need to mix one scoop into the recommended amount of water as per the instructions. You can also use milk or a milk substitute, but this would alter the calorie content and potentially reduce the effectiveness of using protein powder for weight loss.  Depending on the specific diet you are following, you might choose to make smoothies or add to oats if still within your allotted calories for the day.

When should I take diet protein powder?

Many people choose to take protein powders after a workout to speed up the recovery process. If you're using it for weight loss, consuming it as a meal replacement for breakfast or lunch can help control calorie intake and keep you full longer. For muscle retention and recovery, take it within 30-60 minutes after a workout, as this is when your muscles absorb protein most efficiently. To curb cravings or for a healthy snack, drinking a diet protein shake between meals or before bed can help reduce hunger and prevent overeating.