Maxi Nutrition Progain powder helps you bulk up lean muscle with a mighty whey and calcium caseinate blend, delivering bigger gains and quicker recovery after tough workouts. A blend of whey protein concentrate and calcium caseinate gives you fast and steady amino acid delivery, supporting steady nourishment for workouts and recovery. Manufactured in the UK and backed by Informed-Sport screening, MaxiNutrition stands for integrity, quality and sport science behind every scoop.

Available Sizes & Variants:

1200g Maxi Nutrition Progain Powder – ideal daily mass gain with high protein and calories.

Benefits & Features:

• Rapid muscle growth after resistance training is supported.
• Provides quick and steady amino acid delivery thanks to whey and calcium caseinate.
• High calorie, calorie rich formula supports dedicated gainers aiming for size.
• Vitamin B6 helps energy metabolism and protein use for faster recovery.
• Built for daily use, this mix brings maltodextrin carbohydrates and sunflower oil powder fats to deliver the extra calories people training hard need to push on and grow.

MaxiNutrition has a long standing history in UK sport nutrition, dating back to 1995, built on science backed formulations and athlete testing. Progain Powder is made in the UK under strict quality standards and carries Informed-Sport accreditation, giving athletes confidence in purity. The blend uses carefully selected ingredients, including whey protein concentrate and calcium caseinate, to provide both rapid and sustained amino acid delivery that supports demanding training schedules. For those tracking protein powders, this product also contributes a rich source of protein in protein powder options while remaining a trusted choice.

Maltodextrin, whey protein concentrate (milk) (25 %), calcium caseinat (milk) (11 %), sunflower oil, low fatcocoa powder (5%), inulin, vegetable oil (coconut), stabilizer acacia gum, natural flavourings, milk protein, emulsifier lecithins, sweetenersucralose, pyridoxine hydrochloride.

• GTIN: 4062001000430
• Manufacturer: Maxi Nutrition
• Size: Strawberry
• Categories: Best SellersBodybuilding SupplementsNew ArrivalsNew In Supplements & VitaminsSubscribe & Save Products
• 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 Concentrate

Whey protein concentrate is a fast-digesting protein source that supports protein intake for muscle nourishment. This form is commonly derived from dairy and provides a rich profile of essential amino acids essential for tissue repair.

This formula highlights a rapid amino acid supply from whey protein concentrate, complemented by sustained release from additional proteins to support ongoing amino acid availability.

What Does Whey Protein Concentrate Do?

Whey protein concentrate helps maintain normal muscle protein balance when combined with resistance exercise, supporting lean mass gains and recovery. This effect aligns with guidance on protein use alongside training to support normal muscle health.

Dr. Phillips of the University of Illinois found that whey protein supplementation promotes gains in lean body mass and strength among individuals engaged in resistance exercise training.

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

Protein:38g ,Carbohydrates:53g ,Fat:14g ,Salt:0.2g

Maxi Nutrition Progain Powder sits at the heart of our mass-gain category, and Maxi Nutrition is the brand we selected for this partnership because of its long-standing heritage in UK sports nutrition and its proven industry standing since 1995. This brand is widely recognised for its commitment to sport science, integrity and high-quality formulations that athletes trust, reinforced by Informed-Sport accreditation which screens supplements for banned substances.

This brand’s dedication to quality is demonstrated by its UK manufacturing heritage and its established reputation for consistency and reliability in the field. Our evaluation by our medical team emphasised Maxi Nutrition’s track record in producing well‑rounded, high-calorie protein blends that align with professional standards, and our quality review highlights their robust testing and manufacturing practices via our quality certification process.

For Progain Powder, Maxi Nutrition’s dual-protein matrix approach suits the product’s aim of supporting muscle growth and recovery, making them an ideal partner for the British market and Welzo’s trusted curation.