Optimum Nutrition Serious Mass Strawberry 5.45kg – High-Calorie Weight Gainer for Muscle Growth (16 Servings)

Name: Optimum Nutrition Serious Mass Strawberry 5.45kg - High-Calorie Weight Gainer for Muscle Growth (16 Servings)
SKU: optimumnutritionargentina-174
Availability: InStock

$222.84

Optimum Nutrition Serious Mass Strawberry 5.45kg provides 1,250 calories per serving to support weight gain. Contains 50g whey protein, 251g carbohydrates, and 25 vitamins and minerals for muscle growth and recovery.

9999 in stock

SKU: optimumnutritionargentina-174 Category: Serious Mass

Description
Reviews (1)

Description

Optimum Nutrition Serious Mass

Strawberry flavour

Ready to mix powder with proteins, carbohydrates, vitamins and minerals, with sweetener.

Nutrient	Per 100 g	2 scoops (336 g)
Energy	1571 kJ/376 kcal	5279 kJ/1262 kcal
Fat	2,1 g	7,0 g
of which saturated fat	1,2 g	3,9 g
Carbohydrate	74 g	248 g
of which sugars	3,2 g	11 g
Fibre	– g	– g
Protein	15 g	50 g
Salt	0,35 g	1,17 g

Nutrient	Per 100 g	2 scoops (336 g)
Energy	1571 kJ/376 kcal	5279 kJ/1262 kcal
Fat	2,1 g	7,0 g
of which saturated fat	1,2 g	3,9 g
Carbohydrate	74 g	248 g
of which sugars	3,2 g	11 g
Fibre	– g	– g
Protein	15 g	50 g
Salt	0,35 g	1,17 g

Nutrient	100 g	2 scoops (336 g)
Vitamin A	198 µg (25%)*	667 µg (83%)*
Vitamin D	1,3 µg (25%)*	4,2 µg (84%)*
Vitamin E	2,7 mg (22%)*	9,0 mg (75%)*
Vitamin K	22 µg (30%)*	75 µg (100%)*
Vitamin C	19 mg (24%)*	63 mg (79%)*
Thiamin	0,28 mg (25%)*	0,93 mg (84%)*
Riboflavin	0,35 mg (25%)*	1,2 mg (84%)*
Niacin	4,0 mg (25%)*	14 mg (85%)*
Vitamin B6	0,34 mg (24%)*	1,1 mg (82%)*
Folic acid	45,3 µg (23%)*	152 µg (76%)*
Vitamin B12	0,56 µg (22%)*	1,9 µg (75%)*
Biotin	12 µg (24%)*	40 µg (79%)*
Pantothenic acid	1,4 mg (23%)*	4,6 mg (77%)*
Calcium	198 mg (25%)*	667 mg (83%)*
Phosphorus	156 mg (22%)*	524 mg (75%)*
Magnesium	83,5 mg (22%)*	281 mg (75%)*
Iron	5,3 mg (38%)*	18 mg (127%)*
Zinc	3,1 mg (31%)*	11 mg (106%)*
Copper	0,40 mg (40%)*	1,3 mg (134%)*
Manganese	0,60 mg (30%)*	2,0 mg (100%)*
Fluoride	0,87 mg (25%)*	2,9 mg (84%)*
Selenium	17 µg (30%)*	55 µg (101%)*
Chromium	12 µg (29%)*	39 µg (97%)*
Molybdenum	14 µg (29%)*	48 µg (97%)*
Iodine	44,7 µg (29%)*	150 µg (100%)*
Creatine	0,9 g	3,0 g

Nutrient	100 g	2 scoops (336 g)
Vitamin A	198 µg (25%)*	667 µg (83%)*
Vitamin D	1,3 µg (25%)*	4,2 µg (84%)*
Vitamin E	2,7 mg (22%)*	9,0 mg (75%)*
Vitamin K	22 µg (30%)*	75 µg (100%)*
Vitamin C	19 mg (24%)*	63 mg (79%)*
Thiamin	0,28 mg (25%)*	0,93 mg (84%)*
Riboflavin	0,35 mg (25%)*	1,2 mg (84%)*
Niacin	4,0 mg (25%)*	14 mg (85%)*
Vitamin B6	0,34 mg (24%)*	1,1 mg (82%)*
Folic acid	45,3 µg (23%)*	152 µg (76%)*
Vitamin B12	0,56 µg (22%)*	1,9 µg (75%)*
Biotin	12 µg (24%)*	40 µg (79%)*
Pantothenic acid	1,4 mg (23%)*	4,6 mg (77%)*
Calcium	198 mg (25%)*	667 mg (83%)*
Phosphorus	156 mg (22%)*	524 mg (75%)*
Magnesium	83,5 mg (22%)*	281 mg (75%)*
Iron	5,3 mg (38%)*	18 mg (127%)*
Zinc	3,1 mg (31%)*	11 mg (106%)*
Copper	0,40 mg (40%)*	1,3 mg (134%)*
Manganese	0,60 mg (30%)*	2,0 mg (100%)*
Fluoride	0,87 mg (25%)*	2,9 mg (84%)*
Selenium	17 µg (30%)*	55 µg (101%)*
Chromium	12 µg (29%)*	39 µg (97%)*
Molybdenum	14 µg (29%)*	48 µg (97%)*
Iodine	44,7 µg (29%)*	150 µg (100%)*
Creatine	0,9 g	3,0 g

*Reference intake

Ingredients

corn maltodextrin, whey protein concentrate (milk), emulsifier (lecithins (contains soy)), fat reduced cocoa powder, creatine monohydrate, flavouring, milk mineral complex, minerals (magnesium, iron, zinc, manganese, fluoride, selenium, iodine (from kelp), copper, molybdenum, chromium), vitamins (vitamin C, vitamin E, vitamin B3, vitamin A, pantothenic acid (calcium D-pantothenate (vit. B5)), D-biotin, vitamin B12, folic acid, vitamin D, vitamin B6, vitamin B1, vitamin K, vitamin B2), salt, stabilisers (cellulose gum, guar gum, carrageenan), sweetener (sucralose)

Allergy advice

For allergens, see ingredients in bold. May contain traces of gluten, egg, nuts and peanuts

Recommended usage

Add two heapings scoops of Serious Mass to a blender filled with 710 ml of water. Blend for 30-45 seconds.

Warning

This food supplement is not suitable for children younger than 18 years old.

Storage advice

After opening close tightly. Store in a cool and dark place. For batch code/best before end: see packaging.

Additional information

This product should be used as part of a varied and balanced diet and a healthy lifestyle.

Help boost calories intake with 1,250 kcals per shake*
50 grams of Whey Protein – Helps build and maintain muscle
251 g▲ CARBS – Helps support muscle recoveryᵒ
25 Vitamins and Minerals

Product Overview

SUPPORT WEIGHT GAINS WITH SERIOUS MASS(TM)

Serious weight gain requires serious calories. However, those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, a highly active metabolism, weaker appetite and on-the-run lifestyle can make it a real challenge to consume enough calories through whole foods alone. Serious Mass is the ultimate in weight gain formulas. With 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates helping support muscle recovery , and now with 3g added Creatine to support performance per serving, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS(R)

Description

Ready to mix powder with protein, carbohydrates, vitamins and minerals, with sweetener

Benefits

1250 Calories
50 g of Whey Protein
25 Vitamins and Minerals
3 GRAMS OF CREATINE TO SUPPORT PERFORMANCE◊
Ideal formula to support weight gains
Enjoy post work-out and between meals
Available in a range of sizes and great tasting flavours

Suggested Use

Mix 2 heaped scoops with 710 ml of water. You can also add a serving to smoothies, protein balls, muffins, porridge or other meals as another great way to get a protein hit in the kitchen.

1 review for Optimum Nutrition Serious Mass Strawberry 5.45kg – High-Calorie Weight Gainer for Muscle Growth (16 Servings)

Rated 4 out of 5

FitAndBrewing – November 10, 2025

I’ve been using this for two months, and it’s been a turning point usa in my bulking phase. The strawberry flavor mixes well, though a bit thick. Each serving delivers serious mass as advertised—great for post-workout recovery. The price is fair for the quality and quantity. My only gripe is the container could be easier to scoop from.