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High-calorie mass gainer, protein and carbohydrate blend
CALORIES · 100 G
GI
POTASSIUM · 100 G
FIBER · 100 G
2 slice (large) of Gainer Optimum Serious Mass (334 g) has 1269 calories. That works out to 380 calories per 100 g. It contains 243.8 g of carbs, 50.1 g of protein, 15 g of fat and 5 g of fiber. Its 3.3 µg of B12 covers 139% of the Daily Value. Its glycemic index is 80 (high), so it raises blood sugar quickly.
Selected: 2 slice (large) · 334 g
1269
KCAL / 334G
Carbs
243.8g
· 89% DV
Protein
50.1g
· 100% DV
Fat
15g
· 19% DV
Fiber
5g
· 18% DV
DV is the share of the daily value covered, on a 2,000 kcal reference diet.
Calories come from: Carbs 74% · Protein 15% · Fat 11%
| Nutrient | Amount | % DV |
|---|---|---|
| Calories | 1269 kcal | |
| Total fat | 15 g | 19% |
| Saturated fat | 8.35 g | 42% |
| Trans fat | 0 g | |
| Sodium | 601 mg | 26% |
| Total carbohydrate | 243.8 g | 89% |
| Fiber | 5 g | 18% |
| Protein | 50.1 g | 100% |
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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| Serving | Amount | Calories |
|---|---|---|
| 1 slice (medium) | 167 g | 635 kcal |
| 1 tablespoon (medium) | 10 g | 38 kcal |
| 1 slice (small) | 84 g | 319 kcal |
| 100 g | 100 g | 380 kcal |
| 1 cup (medium) | 100 g | 380 kcal |
| 2 slice (large) | 334 g | 1269 kcal |
| 1 serving (large) | 334 g | 1269 kcal |
| 1 pack (jumbo) | 1250 g | 4750 kcal |
Calculated from 380 calories per 100 g.
Optimum Serious Mass is a powdered mass gainer intended to add energy and protein to your diet when you are trying to gain weight. Use it alongside regular meals rather than treating it as a replacement for a balanced diet.
Yes, Optimum Serious Mass can support weight gain by adding substantial energy to your usual intake. It is more likely to help when added to meals rather than used in place of them, but it cannot guarantee a particular result.
Mix Optimum Serious Mass with the liquid and amount directed on the package, using a shaker or blender until smooth. The full serving can be bulky, so you can divide it into smaller drinks if that is easier to tolerate.
You can mix Optimum Serious Mass with either milk or water. Milk makes the shake creamier, while water gives it a lighter texture; choose water if dairy does not agree with you or you prefer a less rich drink.
Follow the serving directions on your Optimum Serious Mass package because scoop sizes and directions can vary by product version. If the listed serving feels too large, start with less and assess how well you tolerate it instead of forcing it down.
There is no required workout timing for Optimum Serious Mass; you can take it before or after training, or at another convenient time. Avoid taking a large shake just before exercise if it makes you feel uncomfortably full.
Yes, you can take Optimum Serious Mass without working out, but the extra energy may still contribute to weight gain. Strength training can help direct weight gain toward muscle, while the shake itself does not build muscle without training.
Optimum Serious Mass can cause bloating, gas, or other digestive discomfort, especially if you drink a large serving quickly. Try a smaller amount first; mixing it with milk may also cause problems if dairy does not suit you.
People with diabetes should ask their healthcare professional before using Optimum Serious Mass. Its high carbohydrate content can affect blood glucose, so whether it fits depends on your individual treatment and blood sugar management.
Vitamins
B12
3.34µg · 139% DV
B2
1.67mg · 128% DV
B1
1.34mg · 112% DV
B3
16.7mg · 104% DV
Minerals
Copper
0.67mg · 74% DV
Phosphorus
501mg · 72% DV
Calcium
668mg · 67% DV
Zinc
6.68mg · 61% DV
Potassium ⭐
1169mg · 34% DV
Sodium
601mg · 26% DV
GLYCEMIC INDEX
GLYCEMIC LOAD
Accounts for portion size — a more realistic measure than GI alone.
To burn the 1269 calories in 2 slice (large) (334 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.
Gainer Optimum Serious Mass is a powdered sports supplement from Optimum Nutrition, designed to be mixed with water or milk. It combines protein and carbohydrates and is generally used around workouts or between meals rather than as a conventional meal.
The prepared drink is typically sweet, with a thicker texture when made with milk; blend or shake it until smooth and serve cold. It is energy-dense and carbohydrate-led, with 73 g of carbohydrates per 100 g. For a lighter drink, mix it with water or use a smaller portion, and adjust the amount to fit alongside your usual meals.
Medium
How many vitamins, minerals and how much fiber this food carries per calorie. A high score means a lot of nutrition for few calories.
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.
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.
Contains these allergens:
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
SATURATED
8.35g
MONOUNSATURATED
4.01g
POLYUNSATURATED
2.34g
Omega 6:3 ratio 5.9:1
Above the ideal 4:1 (5.9:1).
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Nutrition data compiled from USDA FoodData Central and scientific sources.