Trec Nutrition Mass XXL, Salted Caramel - 4800 grams
Trec Nutrition Mass XXL, Vanilla - 3000 grams
Trec Nutrition Mass XXL, Strawberry - 4800 grams
Trec Nutrition Mass XXL, Salted Caramel - 4800 grams
Trec Nutrition Mass XXL, Vanilla - 3000 grams
Trec Nutrition Mass XXL, Strawberry - 4800 grams
"Very quick delivery. Used 3 times, each order arrived the next day before 12:00"
Hugo Dover
"Reliable & original products, with fast next day delivery. Have been using Welzo for over a year now."
Elina Goulliard
"Welzo is great, lots of support from customer service who are easy to get a hold of and quick delivery."
Elizabeth Moore

Product Description

Trec Nutrition Mass fuels lean muscle gains with a powerful blend of fast and slow releasing carbs and high quality whey protein, helping you bulk up after hard training. Rapidly replenishes energy after workouts with maltodextrin and dextrose, supporting recovery and growth. From a trusted brand in sports nutrition, it's designed to help you hit your bulking goals with sustained energy and solid protein delivery.

Benefits & Features:

  • Supports muscle growth with a high protein blend.
  • Rapidly replenishes energy after workouts with maltodextrin and dextrose, helping you recover quicker.
  • Ideal as a daily mass gainer for muscle building and recovery.
  • Vitamin complex supports energy metabolism and reduces fatigue, while vitamin E protects cells from oxidative stress, helping you train consistently and feel sharper over time.
  • Supports easy mixing with tasty flavours for daily use, a reliable sports nutrition supplement for daily bulking.

Rooted in decades of sports nutrition expertise, Trec Nutrition Mass combines fast and slow carbohydrates with a hearty whey protein core to support muscle growth and post workout recovery. The maltodextrin and dextrose blend delivers quick energy rebound, while the protein fuels lean mass gains. Vitamin complex supports energy metabolism and helps guard against fatigue, while the brand's commitment to quality shines through in every batch.

Ingredients/Specifications

Energy value, Fat, of which saturates, Carbohydrate, of which sugars, Protein, Salt, Vitamin C, Niacin, Vitamin E, Pantothenic acid, Vitamin B6, Riboflavin (Vitamin B2), Thiamine (Vitamin B1), Folic acid, Biotin, Vitamin B12, Active ingredients, Maltodextrins, Whey Protein Concentrate, Dextrose

UK Delivery & Returns

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.

How to use

Mix one scoop of Mass XXL with 300-400ml of water or milk. Consume post-workout or between meals to meet your daily protein and calorie needs. Store in a cool, dry place, away from direct sunlight and moisture. Keep out of reach of children. This product is not recommended for children, pregnant or breastfeeding women. Do not exceed the recommended daily dose.

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

Nutritional Information

  Amount
Per 100g
Amount
Per Serving
%RI*
Energy value 2334.2857 kJ / 550 kcal 1634 kJ / 385 kcal
Fat 1.8429 g 1.29 g 2%
of which saturates 0.9286 g 0.65 g 3%
Carbohydrate 106.1 g 74.27 g 29%
of which sugars 32.7143 g 22.9 g 25%
Protein 27.1857 g 19.03 g 38%
Salt 2.6429 g 1.85 g 31%
Vitamin C 28.5714 mg 20 mg 25%
Niacin 5.7143 mg 4 mg 25%
Vitamin E 4.2857 mg 3 mg 25%
Pantothenic acid 2.1429 mg 1.5 mg 25%
Vitamin B6 0.5 mg 0.35 mg 25%
Riboflavin (Vitamin B2) 0.5 mg 0.35 mg 25%
Thiamine (Vitamin B1) 0.3857 mg 0.27 mg 25%
Folic acid 71.4286 µg 50 µg 25%
Biotin 17.8571 µg 12.5 µg 25%
Vitamin B12 0.9 µg 0.63 µg 25%
Active ingredients
Maltodextrins 81.2857 g 56.9 g
Whey Protein Concentrate 34 g 23.8 g
Dextrose 15.6714 g 10.97 g

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Prime Ingredient Is: Whey Protein Concentrate

Whey protein concentrate is a highly bioavailable (easily absorbed by your body) dairy protein that provides essential amino acids needed for muscle repair and growth, which is handy for gym days.

This form is derived from dairy and contributes to the product’s protein content, supporting post-exercise recovery and lean mass promotion as part of a balanced diet, which many people rely on.

What Does Whey Protein Concentrate Do?

Whey protein concentrate plays a role in stimulating muscle protein synthesis and aids in post-exercise recovery, contributing to lean mass gains when combined with resistance training according to widely cited evidence, and it helps maintain motivation to train.

It supports normal energy metabolism and helps to maintain muscle function during recovery, as described in nutritional guidance on protein and exercise for athletes (which is often referenced).

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

Why it's Welzo

Mass XXL comes from Trec Nutrition, a name we trust in sports nutrition for its focused take on mass gain stuff.

Our vetting process spotted Trec Nutrition for its clear formulation promise and fit with Welzo's quality framework. This shows in our assessment by our expert crew of doctors, nurses and nutritionists and reinforced by our ingredient quality and purity standards, ensuring the product aligns with our safety and purity expectations.

The product’s composition leans on whey protein concentrate to support muscle protein synthesis and quickly digested carbohydrates to help glycogen replenishment after workouts, which fits nicely with our mass gain and post-training recovery plan.

Picking this brand over others reflects the synergy between their formulation strengths and the specific needs of Mass XXL, which lines up with Welzo’s evaluation criteria for credible, proven sport nutrition partners.

Trec Nutrition Mass XXL

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Trec Nutrition Mass fuels lean muscle gains with a powerful blend of fast and slow releasing carbs and high quality whey protein, helping you bulk up after hard training.
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Product Description

Trec Nutrition Mass fuels lean muscle gains with a powerful blend of fast and slow releasing carbs and high quality whey protein, helping you bulk up after hard training. Rapidly replenishes energy after workouts with maltodextrin and dextrose, supporting recovery and growth. From a trusted brand in sports nutrition, it's designed to help you hit your bulking goals with sustained energy and solid protein delivery.

Benefits & Features:

  • Supports muscle growth with a high protein blend.
  • Rapidly replenishes energy after workouts with maltodextrin and dextrose, helping you recover quicker.
  • Ideal as a daily mass gainer for muscle building and recovery.
  • Vitamin complex supports energy metabolism and reduces fatigue, while vitamin E protects cells from oxidative stress, helping you train consistently and feel sharper over time.
  • Supports easy mixing with tasty flavours for daily use, a reliable sports nutrition supplement for daily bulking.

Rooted in decades of sports nutrition expertise, Trec Nutrition Mass combines fast and slow carbohydrates with a hearty whey protein core to support muscle growth and post workout recovery. The maltodextrin and dextrose blend delivers quick energy rebound, while the protein fuels lean mass gains. Vitamin complex supports energy metabolism and helps guard against fatigue, while the brand's commitment to quality shines through in every batch.

Ingredients/Specifications

Energy value, Fat, of which saturates, Carbohydrate, of which sugars, Protein, Salt, Vitamin C, Niacin, Vitamin E, Pantothenic acid, Vitamin B6, Riboflavin (Vitamin B2), Thiamine (Vitamin B1), Folic acid, Biotin, Vitamin B12, Active ingredients, Maltodextrins, Whey Protein Concentrate, Dextrose

UK Delivery & Returns

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.

How to use

Mix one scoop of Mass XXL with 300-400ml of water or milk. Consume post-workout or between meals to meet your daily protein and calorie needs. Store in a cool, dry place, away from direct sunlight and moisture. Keep out of reach of children. This product is not recommended for children, pregnant or breastfeeding women. Do not exceed the recommended daily dose.

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

Nutritional Information

  Amount
Per 100g
Amount
Per Serving
%RI*
Energy value 2334.2857 kJ / 550 kcal 1634 kJ / 385 kcal
Fat 1.8429 g 1.29 g 2%
of which saturates 0.9286 g 0.65 g 3%
Carbohydrate 106.1 g 74.27 g 29%
of which sugars 32.7143 g 22.9 g 25%
Protein 27.1857 g 19.03 g 38%
Salt 2.6429 g 1.85 g 31%
Vitamin C 28.5714 mg 20 mg 25%
Niacin 5.7143 mg 4 mg 25%
Vitamin E 4.2857 mg 3 mg 25%
Pantothenic acid 2.1429 mg 1.5 mg 25%
Vitamin B6 0.5 mg 0.35 mg 25%
Riboflavin (Vitamin B2) 0.5 mg 0.35 mg 25%
Thiamine (Vitamin B1) 0.3857 mg 0.27 mg 25%
Folic acid 71.4286 µg 50 µg 25%
Biotin 17.8571 µg 12.5 µg 25%
Vitamin B12 0.9 µg 0.63 µg 25%
Active ingredients
Maltodextrins 81.2857 g 56.9 g
Whey Protein Concentrate 34 g 23.8 g
Dextrose 15.6714 g 10.97 g

*Percent Daily Values are based on a 2,000 calorie diet. Your daily values may be higher or lower depending on your calorie needs.

The Prime Ingredient Is: Whey Protein Concentrate

Whey protein concentrate is a highly bioavailable (easily absorbed by your body) dairy protein that provides essential amino acids needed for muscle repair and growth, which is handy for gym days.

This form is derived from dairy and contributes to the product’s protein content, supporting post-exercise recovery and lean mass promotion as part of a balanced diet, which many people rely on.

What Does Whey Protein Concentrate Do?

Whey protein concentrate plays a role in stimulating muscle protein synthesis and aids in post-exercise recovery, contributing to lean mass gains when combined with resistance training according to widely cited evidence, and it helps maintain motivation to train.

It supports normal energy metabolism and helps to maintain muscle function during recovery, as described in nutritional guidance on protein and exercise for athletes (which is often referenced).

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

Why it's Welzo

Mass XXL comes from Trec Nutrition, a name we trust in sports nutrition for its focused take on mass gain stuff.

Our vetting process spotted Trec Nutrition for its clear formulation promise and fit with Welzo's quality framework. This shows in our assessment by our expert crew of doctors, nurses and nutritionists and reinforced by our ingredient quality and purity standards, ensuring the product aligns with our safety and purity expectations.

The product’s composition leans on whey protein concentrate to support muscle protein synthesis and quickly digested carbohydrates to help glycogen replenishment after workouts, which fits nicely with our mass gain and post-training recovery plan.

Picking this brand over others reflects the synergy between their formulation strengths and the specific needs of Mass XXL, which lines up with Welzo’s evaluation criteria for credible, proven sport nutrition partners.

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Disclaimer

Content team: Dr Sameer Nakedar

Role: Chief Medical Officer

MBBS (London, UK), MRCGP, PGCert

Content team: Paola Drexlar

Role: Medical Content Writer, UK

BA (Hons) Journalism