-15% | CODE: FITA15
Mega Mass 4000 (3 kg)
Enriched with creatine, vitamins, and minerals
- 542 kcal and 99 g of carbohydrates per serving
- 29 g of protein per serving
- 3 g of creatine per serving
-15% sitewide ! CODE: FITA15
TERMS
close*Offer cannot be combined with any other promotional code, but can be combined with current promotions; valid until 25 August 2026 at 9.30 am.
Order before 4 p.m. Same-day shipping, fast delivery within 48 hours.
Free shippingfrom 80€ of purchase
+3 million parcelsPrepared by us
Customer review 4.7/5+32,000 verified reviews
Delivery information
closeLivraison en France métropolitaine
◉ DPD Pickup : 4,90 € (offerts dès 60€ d’achat), livré en 1 à 2j ouvrables*
◉ DPD Predict: $6.90 (free for orders over $80), delivered in 1 to 2 business days*
◉ Chronopost Pickup: €7.90 for any purchase amount, guaranteed delivery within one business day before 1 p.m.
◉ Chronopost: €9.90 for any purchase amount, guaranteed delivery within one business day before 1 p.m.
Delivery to Corsica and Monaco
◉ Colissimo Pickup: $4.90 (free for purchases over $80), delivered in 2 to 3 business days*
◉ Colissimo: $6.90 (free for purchases over $80), delivered in 2 to 3 business days*
Delivery in Belgium
◉ DPD Pickup: $6.90 (free for purchases over $80), delivered in 2 to 3 business days*
◉ DPD Predict: $8.90 (free for orders over $80), delivered in 2 to 3 business days*
*Average time observed (modified)
Mega Mass 4000 (3 kg) by Weider is a powdered weight gainer rich in carbohydrates and protein, designed for athletes looking to easily increase their daily caloric intake as part of a muscle-building regimen. Its formula combines multiple sources of carbohydrates, a protein matrix, Creapure® creatine monohydrate, and a blend of vitamins and minerals.
Each 150-gram serving provides 542 kcal, with 99 grams of carbohydrates and 29 grams of protein based on the powder. This profile makes it easy to add a significant number of calories to your diet without having to greatly increase the portion sizes of your meals.
Protein helps build and maintain muscle mass, making this formula particularly well-suited for periods when your goal is to gain weight while following a regular strength-training routine. The carbohydrate base includes maltodextrin, wheat starch, oat flour, and potato starch. It thus provides the majority of the formula’s calories, with nearly 100 g of carbohydrates per shake.
For protein, Weider combines several complementary sources: milk protein isolate, whey protein concentrate, and egg albumin.
One serving provides 29 g of protein, which is a good amount to supplement your daily intake during a muscle-building phase. Another key feature of Mega Mass 4000 is its inclusion of Creapure® creatine monohydrate. One serving provides 3.4 g of creatine monohydrate, equivalent to 3 g of creatine.
At this dose, creatine improves physical performance during successive sets of short-duration, high-intensity exercises. The beneficial effect is achieved with a daily intake of 3 g of creatine.
Each serving provides:
- 40 mg of vitamin C,
- 6 mg of vitamin E,
- 8 mg of niacin,
- 0.7 mg of vitamin B6,
- 0.7 mg of vitamin B2,
- 0.55 mg of vitamin B1,
- 5 mg of zinc,
- 7.7 mg of iron
- and 75 µg of iodine.
Vitamins B1, B2, B6, niacin, and iron contribute to normal energy metabolism, while vitamin B6 helps reduce fatigue and zinc supports the normal functioning of the immune system.
Available in Chocolate, Strawberry, and Vanilla, Weider’s Mega Mass 4000 features a highly comprehensive formula combining 542 kcal, 99 g of carbohydrates, 29 g of protein, and 3 g of creatine per serving, with a large serving size designed to effectively support a muscle-building phase.
Net weight : 3 kgProduct with sweetener(s)
Mix 150 g of powder with about 550 ml of water or low-fat milk, then stir or blend until smooth. The brand recommends consuming 1 serving per day, preferably after a workout or between meals when you need to increase your daily energy intake. The amount of liquid can be adjusted depending on the desired consistency.
| For 150 g | AR %* | |
|---|---|---|
| Energy | 2,301 kJ / 542 kcal | 27% |
| Fats - of which saturated fatty acids | 2.4 g 1.4 g | 3% 6% |
| Carbohydrates - of which sugars | 99 g 16 g | 38% 17% |
| Proteins | 29 g | 57% |
| Salt | 0.21 g | 3% |
| Iron | 7.7 mg | 55% |
| Vitamin C | 40 mg | 50% |
| Niacin | 8 mg | 50% |
| Vitamin E | 6 mg | 50% |
| Zinc | 5 mg | 50% |
| Pantothenic acid | 3 mg | 50% |
| Vitamin B2 | 0.7 mg | 50% |
| Vitamin B6 | 0.7 mg | 50% |
| Vitamin B1 | 0.55 mg | 50% |
| Folic acid | 100 µg | 50% |
| Iodine | 75 µg | 50% |
| Creatine monohydrate Creatine | 3,400 mg 3,000 mg | - - |
*AR : Reference intakes for an average adult (8,400 kJ/2,000 kcal)
Chocolate Ingredients:Maltodextrin, starch wheat modified, flour oats (gluten), potato starch, protein isolate from milk, whey protein concentrate (milk), albumin egg, low-fat cocoa powder, sweet whey (milk), creatine monohydrate, medium-chain triglycerides, sweeteners (acesulfame K, sucralose, steviol glycosides), thickener (guar gum), anti-caking agent (silicon dioxide), antioxidant (ascorbic acid), ferric pyrophosphate, vitamin E, niacin, zinc oxide, vitamin B5, vitamin B6, thiamine (vitamin B1), riboflavin (vitamin B2), folic acid (vitamin B9), potassium iodide.
| For 150 g | AR %* | |
|---|---|---|
| Energy | 2,323 kJ / 547 kcal | 27% |
| Fats - of which saturated fatty acids | 1.1 g 0.6 g | 1% 3% |
| Carbohydrates - of which sugars | 104 g 17 g | 40% 18% |
| Proteins | 30 g | 60% |
| Salt | 0.23 g | 3% |
| Iron | 8.1 mg | 57% |
| Vitamin C | 40 mg | 50% |
| Niacin | 8 mg | 50% |
| Vitamin E | 6 mg | 50% |
| Zinc | 5 mg | 50% |
| Pantothenic acid | 3 mg | 50% |
| Vitamin B2 | 0.7 mg | 50% |
| Vitamin B6 | 0.7 mg | 50% |
| Vitamin B1 | 0.55 mg | 50% |
| Folic acid | 102 µg | 51% |
| Iodine | 75.1 µg | 50% |
| Creatine monohydrate Creatine | 3,400 mg 3,000 mg | - - |
*AR : Reference intakes for an average adult (8,400 kJ/2,000 kcal)
Strawberry Ingredients:Maltodextrin, starch wheat modified, flour oats (gluten), potato starch, protein isolate from milk, whey protein concentrate (milk), albumin egg, sweet whey (milk), creatine monohydrate, flavoring, coloring (betanin), medium-chain triglycerides, sweeteners (acesulfame K, sucralose, steviol glycosides), thickener (guar gum), acidulant (citric acid), anti-caking agent (silicon dioxide), antioxidant (ascorbic acid), ferric pyrophosphate, vitamin E, niacin, zinc oxide, vitamin B5, vitamin B6, thiamine (vitamin B1), riboflavin (vitamin B2), folic acid (vitamin B9), potassium iodide.
| For 150 g | AR %* | |
|---|---|---|
| Energy | 2,325 kJ / 547 kcal | 27% |
| Fats - of which saturated fatty acids | 1.2 g 0.8 g | 1% 4% |
| Carbohydrates - of which sugars | 104 g 17 g | 40% 18% |
| Proteins | 30 g | 60% |
| Salt | 0.27 g | 4% |
| Iron | 8.1 mg | 57% |
| Vitamin C | 40 mg | 50% |
| Niacin | 8 mg | 50% |
| Vitamin E | 6 mg | 50% |
| Zinc | 5 mg | 50% |
| Pantothenic acid | 3 mg | 50% |
| Vitamin B2 | 0.7 mg | 50% |
| Vitamin B6 | 0.7 mg | 50% |
| Vitamin B1 | 0.55 mg | 50% |
| Folic acid | 100 µg | 50% |
| Iodine | 75 µg | 50% |
| Creatine monohydrate Creatine | 3,400 mg 3,000 mg | - - |
*AR : Reference intakes for an average adult (8,400 kJ/2,000 kcal)
Vanilla Ingredients:Maltodextrin, starch wheat modified, flour oats (gluten), potato starch, protein isolate from milk, whey protein concentrate (milk), albumin egg, sweet whey (milk), creatine monohydrate, medium-chain triglycerides, flavoring, sweeteners (acesulfame K, sucralose, steviol glycosides), thickener (guar gum), anti-caking agent (silicon dioxide), color (beta-carotene), antioxidant (ascorbic acid), ferric pyrophosphate, vitamin E, niacin, zinc oxide, vitamin B5, vitamin B6, thiamine (vitamin B1), riboflavin (vitamin B2), folic acid (vitamin B9), potassium iodide.
Enjoy as part of a varied and balanced diet. Best consumed by: see package. Store in a dry place away from light. Excessive consumption of this product may have a laxative effect.
Allergens: Manufactured in a facility that processes eggs, milk proteins, gluten, peanuts, soy, and shellfish-based ingredients.