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Optimum Nutrition Serious Mass weight gainer powder Calories
High-calorie weight gainer powder with protein and carbohydrates
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
Quick answer
1 serving (medium) of Optimum Nutrition Serious Mass weight gainer powder (160 g) has 624 calories. That works out to 390 calories per 100 g. It contains 120 g of carbs, 24 g of protein, 3.2 g of fat and 2.4 g of fiber. Its 7.2 mg of Zinc covers 65% of the Daily Value. Its glycemic index is 68 (high), so it raises blood sugar quickly.
Optimum Nutrition Serious Mass weight gainer powder Nutrition Facts
Selected: 1 serving (medium) · 160 g
624
KCAL / 160G
Carbs
120g
· 44% DV
Protein
24g
· 48% DV
Fat
3.2g
· 4% DV
Fiber
2.4g
· 9% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 79% · Protein 16% · Fat 5%
Optimum Nutrition Serious Mass weight gainer powder nutrition facts table · 1 serving (medium) (160 g)
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 624 kcal | |
| Total fat | 3.2 g | 4% |
| Saturated fat | 1.28 g | 6% |
| Trans fat | 0.08 g | |
| Sodium | 400 mg | 17% |
| Total carbohydrate | 120 g | 44% |
| Fiber | 2.4 g | 9% |
| Protein | 24 g | 48% |
Calories: Calories measure energy. Average daily need is 2,000 kcal. Excess calories are stored as fat, too few cause weight loss.
Carbs: Your body's primary energy source. The brain runs exclusively on carbs. Daily need: 275g.
Protein: Essential for muscle repair and cell growth. Daily need: 50g. Keeps you full and boosts metabolism.
Fat: Needed for hormone production and vitamin absorption. Daily need: 78g. Limit saturated fats, choose unsaturated.
Fiber: Critical for digestive health and satiety. Daily need: 28g. Stabilizes blood sugar, lowers cholesterol.
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How Many Calories in 1 Serving of Optimum Nutrition Serious Mass weight gainer powder?
| Serving | Amount | Calories |
|---|---|---|
| 1 serving (medium) | 160 g | 624 kcal |
| 1 tablespoon (small) | 10 g | 39 kcal |
| 2 tablespoon (double) | 20 g | 78 kcal |
| ½ cup (half) | 60 g | 234 kcal |
| 100 g | 100 g | 390 kcal |
| 1 cup (medium) | 120 g | 468 kcal |
| 1.5 serving (large) | 240 g | 936 kcal |
| 2 serving (double) | 320 g | 1248 kcal |
| 1 pack (whole) | 2727 g | 10635 kcal |
Calculated from 390 calories per 100 g.
Frequently Asked Questions About Optimum Nutrition Serious Mass weight gainer powder
How do you use Optimum Nutrition Serious Mass weight gainer powder?
Mix Optimum Nutrition Serious Mass weight gainer powder with liquid according to the serving directions on its package. Adding the powder after the liquid can help it blend more smoothly. Follow the label because scoop instructions and serving sizes can vary by product version.
Should you mix Optimum Nutrition Serious Mass weight gainer powder with milk or water?
You can mix Optimum Nutrition Serious Mass weight gainer powder with either milk or water. Milk makes a creamier, more substantial shake, while water gives it a lighter texture. Choose whichever fits your taste and the rest of your diet.
When should you take Optimum Nutrition Serious Mass weight gainer powder?
There is no required time to take Optimum Nutrition Serious Mass weight gainer powder. Having it between meals can make it easier to add to your usual eating routine; if a large shake feels uncomfortable before bed, have it earlier.
Does Optimum Nutrition Serious Mass weight gainer powder make you gain weight?
It can help you gain weight if Optimum Nutrition Serious Mass weight gainer powder raises your daily energy intake above what you use. It does not guarantee weight gain on its own, so keep eating regular meals and monitor your progress.
Can Optimum Nutrition Serious Mass weight gainer powder replace a meal?
Optimum Nutrition Serious Mass weight gainer powder is better used as an addition to meals, not as a regular meal replacement. It provides protein and carbohydrates, but it does not offer the variety of foods found in a balanced meal.
Can you take Optimum Nutrition Serious Mass weight gainer powder on rest days?
Yes, you can take Optimum Nutrition Serious Mass weight gainer powder on rest days. Its usefulness depends on whether you need extra energy that day; if your regular meals already meet your needs, an additional shake may not be necessary.
Is Optimum Nutrition Serious Mass weight gainer powder suitable for beginners?
Yes, beginners can use Optimum Nutrition Serious Mass weight gainer powder, but starting with the full package serving may feel like a lot. Follow the label directions, pay attention to how you tolerate it, and build your routine around regular meals.
How can you make Optimum Nutrition Serious Mass weight gainer powder less thick?
To make Optimum Nutrition Serious Mass weight gainer powder less thick, blend it with more liquid than you would for a dense shake. Add the liquid gradually until the texture suits you, while keeping the product’s labeled serving unchanged.
Is Optimum Nutrition Serious Mass weight gainer powder better than a homemade shake?
Neither is automatically better: Optimum Nutrition Serious Mass weight gainer powder is convenient, while a homemade shake lets you choose each ingredient and adjust the taste. Use the product when convenience helps, and compare ingredient lists if you prefer more control.
Can Optimum Nutrition Serious Mass weight gainer powder cause stomach discomfort?
Yes, a large shake of Optimum Nutrition Serious Mass weight gainer powder can cause bloating or stomach discomfort for some people. Drink it slowly and follow the package directions; stop using it if symptoms persist or become severe.
Optimum Nutrition Serious Mass weight gainer powder Vitamins & Minerals
Vitamins
B12
1.2µg · 50% DV
B2
0.64mg · 49% DV
B5
2.4mg · 48% DV
B1
0.56mg · 47% DV
Minerals
Zinc
7.2mg · 65% DV
Phosphorus
400mg · 57% DV
Calcium
560mg · 56% DV
Copper
0.48mg · 53% DV
Potassium ⭐
800mg · 24% DV
Sodium
400mg · 17% DV
Optimum Nutrition Serious Mass weight gainer powder Glycemic Index
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
How to Burn Off Optimum Nutrition Serious Mass weight gainer powder
To burn the 624 calories in 1 serving (medium) (160 g):
🚶
Walking (5 km/h)
🏃
Running (8 km/h)
🚴
Cycling
🏊
Swimming
Times are calculated with the MET equation for a 70 kg adult. Actual burn varies with your weight, age and pace.
What is Optimum Nutrition Serious Mass weight gainer powder?
Optimum Nutrition Serious Mass weight gainer powder is a packaged mix of carbohydrates and protein, made to be blended into a drink. Mix it with water or milk, or add it to a smoothie with fruit for a thicker, more filling option.
Its texture depends on the liquid and how thoroughly it is blended; milk gives it a creamier finish. It can be used as a substantial snack or alongside a meal, including around a workout. At 390 calories per 100 g, it is energy-dense and mostly carbohydrate, with 15 g of protein per 100 g. Adjust the amount to suit your appetite, or use water for a lighter drink.
How Nutritious Is Optimum Nutrition Serious Mass weight gainer powder?
Nutrient density
Low
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
Satiety score
Low
An EatBetter score computed from fiber, protein and calorie density. A high score means staying full longer on the same calories.
Both scores are calculated per 100 g and do not change with the selected portion. The satiety score is EatBetter's own calculation, not a clinical measure.
Is Optimum Nutrition Serious Mass weight gainer powder Processed?
NOVA 4
Ultra-Processed
1. Unprocessed
2. Minimally Processed
3. Processed
4. Ultra-Processed
NOVA classifies foods into 4 groups by industrial processing. NOVA 1 (unprocessed) is the healthiest.
Does Optimum Nutrition Serious Mass weight gainer powder Contain Allergens?
Contains these allergens:
Which Diets Is Optimum Nutrition Serious Mass weight gainer powder Good For?
Vegan
— Not suitable
Vegetarian
✓ Suitable
Gluten-Free
— Not suitable
Dairy-Free
— Not suitable
Mediterranean
— Not suitable
Paleo
— Not suitable
Whole30
— Not suitable
DASH
— Not suitable
Keto
— Not suitable
Low FODMAP
— Not suitable
Optimum Nutrition Serious Mass weight gainer powder Fat Profile
SATURATED
1.28g
MONOUNSATURATED
0.64g
POLYUNSATURATED
1.12g
Omega 6:3 ratio 19.2:1
Above the ideal 4:1 (19.2:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.