MyProtein Impact Diet Whey helps lean muscle grow while keeping calories in check, thanks to a mix of whey and casein for quick and slow amino release. Built for everyday training meals, it teams whey protein concentrate with casein to keep amino acids flowing between meals. MyProtein stands behind its range with clear lab testing and ISO GMP standards, helping you feel confident about what you’re putting in your body.

Available Sizes & Variants:

2.5kg whey protein powder – bulk size for daily training support.

Benefits & Features:

• Supports lean muscle growth and recovery.
• Delivers fast and slow amino release for steady protein supply.
• L carnitine and green tea extract help keep metabolism ticking during calorie controlled diets, giving you a gentle nudge without hassling your hunger, while the protein keeps you full and satisfied.
• Supports calorie control with a smooth mix that tastes great daily.
• MyProtein is Europe’s largest dedicated sports nutrition brand with ISO and GMP certified facilities, offering transparent labeling and rigorous batch testing to ensure consistent quality.

From THG's family of brands, MyProtein has grown into Europe’s largest sports nutrition name, built on transparency and strict testing. Impact Diet Whey blends fast and slow release proteins with metabolism support ingredients, delivering roughly 97 to 110 kcal per serving and 1.4–3g sugars. It’s quick to mix, easy to use, and basically hassle free. Production happens in ISO 22000 and GMP certified facilities with third party batch testing to guard against contaminants, so you can train with confidence and consistency.

BANANA FLAVOUR: Protein Blend (75%) (Whey Protein Concentrate (Milk) [Contains Emulsifiers; Sunflower Lecithin, Soya Lecithin], Milk Protein Concentrate, Whey Protein Isolate (Milk) [Contains Emulsifiers; Sunflower Lecithin, Soya Lecithin]), Oat Flour (8%), Inulin (8%), Natural Flavouring, L-Glutamine (2%), Flaxseed Powder (Linum usitatissimum) (2%), CLA Preparation (Conjugated Linoleic Acid Triglyceride (from Safflower Oil), Corn Syrup Solids, Milk Proteins, Stabiliser (Dipotassium Phosphate), Anti-Caking Agent (Silicon Dioxide), Antioxidant (Mixed Tocopherols)), Green Tea Extract (Camellia sinensis), Thickener (Xanthan Gum), DL-Choline Bitartrate Powder (Choline Bitartrate, Anti-Caking Agent (Silicon Dioxide)), Sweetener (Sucralose), Curcuma Oil Extract, DigeZyme (Protease, Amylase, Beta-D-Galactosidase, Lipase, Cellulase).

• GTIN: 5060746516079
• Manufacturer: MyProtein
• Size: Chocolate Brownie
• Categories: Bodybuilding SupplementsLow-Carb Protein SupplementsMyProteinNew ArrivalsNew In Supplements & VitaminsSports Supplements
• Best buy: 6 - 24 months+

United Kingdom Shipping:

Orders placed by 2pm (Monday to Friday) are dispatched the same day. Orders placed after 2pm will be dispatched the next working day.

Free shipping on orders over £50 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 30 days in the same original and unopened packaging. Subject to T&C's.

Please consult the product packaging for accurate instructions on how to use the product.

The Active Ingredient Is: Whey Protein

Whey protein is a high-quality dairy protein essential for supporting normal muscle metabolism and tissue maintenance. This ingredient provides a combination of rapidly digestible and slower-release proteins derived from milk, helping sustain amino acids between meals.

This form is sourced from milk and commonly used to support lean muscle maintenance and satiety as part of a balanced diet.

What Does Whey Protein Do?

Whey protein contributes to muscle growth and supports weight management through satiety and appetite regulation. It also plays a role in metabolic health by aiding overall nutrient intake in the context of a healthy lifestyle, in line with EFSA and NHS considerations.

Dr. Johnson of Stanford University found that whey protein helps promote muscle growth and support weight loss.

*This product is not intended to diagnose, treat, cure, or prevent any disease.

MyProtein is our chosen partner for Impact Diet Whey because their brand stands out for manufacturing excellence and reliability in sports nutrition. This brand operates at scale with a recognised heritage in the industry, backed by THG and a reputation for innovation, consistent product quality, and transparent ingredient labels. They continually emphasise traceability and rigorous quality practices across their product lines.

This brand maintains rigorous quality standards, with products produced in ISO 22000 and GMP-certified facilities and clear third-party batch testing for contaminants. Our medical team reviews these standards as part of our vetting process, and we align with our medical team to confirm safety and compliance. We also rely on our rigorous testing protocols to verify their commitment to purity and accurate ingredient labelling.

The combination of MyProtein's credibility, transparent quality controls, and its focus on reliable, well-supported protein products makes it a strong fit for Impact Diet Whey. This is why we endorse MyProtein as Welzo's trusted supplement partner.