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Serious Mass Chocolate

Optimum Nutrition
4.5
(45316 ratings)
Niacin 50 mg
Sodium 570 mg
Potassium 1430 mg
Glutamine 500 mg
Copper 1 mg
Phosphorus 590 mg
Molybdenum 75 mcg
Product Image
Score80

A high-calorie, high-protein mass gainer with added creatine and a full multivitamin profile.

How scoring works
Quantity:6 lb(s)(8 servings)
Goals:
Fitness
Hair Health
Immunity
Heart Health
Bone Health

Score 80

A high-calorie, high-protein mass gainer with added creatine and a full multivitamin profile.

How scoring works
$48.49($6.06 per serving)
Supplement City
$ 49.99
Amazon
$ 48.49
iHerb
$ 57.02
Vitacost
$ 61.53
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Analysis

This supplement provides 1,250 calories and 50 grams of protein per serving to support muscle growth and recovery. It includes 3 grams of creatine monohydrate, which is a standard dose for supporting physical power during workouts. The formula also acts as a full multivitamin to ensure you are getting cofactors for your energy metabolism.

The addition of glutamine and inositol helps support recovery and metabolic health during intense training. This is a very practical choice for people who are physically active and have high energy demands. It serves as a meal replacement for those on a serious weight-gaining plan.

Pros

  • Huge calorie and protein count for weight gain
  • Includes creatine monohydrate and glutamine
  • Full spectrum of 25 vitamins and minerals
  • Well-known brand for sports nutrition

Cons

  • Very high carbohydrate and sugar content
  • Massive serving size (2 scoops)
  • Higher cost per serving than standard protein

Warnings

  • Monitor for unwanted fat gain if inactive
  • Consult a doctor if you have kidney concerns
  • High protein can cause bloating for some

Nutrient quality

76 High impact

Creatine and protein are meaningfully dosed for muscle growth, although the use of synthetic folic acid and cyanocobalamin is less ideal. The very high carbohydrate content is appropriate for the mass-gainer category but may not suit all fitness goals.

Ingredient transparency

86 Highest impact

The label provides extensive detail on the vast array of vitamins and minerals included in the formula. While the macros are clear, the specific protein source details could be more granular.

Customer satisfaction

91 Highest impact

A massive number of reviews and a consistent 4.5 rating demonstrate high consumer trust and effectiveness. Most users report success with weight gain goals, which aligns with the product's core purpose.

Value for money

67 High impact

The price per serving is relatively high, but the sheer quantity of nutrients and calories per scoop provides unique utility. It is a premium-priced mass gainer compared to basic protein powders.

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Goals

Impact
Highest effect
A+ Goal FitA Strength of SupportA CoverageA Formula Quality

Comprehensive mass gainer provides foundational support for muscle hypertrophy and energy restoration through a dense nutrient profile. Clinical doses of creatine monohydrate and a robust spectrum of electrolytes directly contribute to physical power and hydration.

Full spectrum of vitamins and minerals ensures active individuals meet the high metabolic demands of intense training. This multi-pillar approach addresses energy production, muscle repair, and micronutrient sufficiency for individuals with extreme caloric needs.

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Impact
High effect
B+ Goal FitB+ Strength of SupportB+ CoverageC Formula Quality

Protein and zinc citrate provide focused support for the structural building blocks and rapid cell division required for healthy hair. These nutrients appear well aligned for those seeking to maintain hair thickness and follicle integrity through high-intake nutrition.

The inclusion of biotin and niacinamide further supports the metabolic energy and protein synthesis essential for hair growth. This calorie-dense formula provides a massive pool of amino acids which may contribute to the construction of the keratin hair shaft.

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Impact
High effect
B Goal FitB- Strength of SupportB CoverageB Formula Quality

High-calorie mass gainer includes a broad spectrum of vitamins and minerals to maintain baseline nutritional status during periods of high physical demand. This foundational support helps ensure that the body has the necessary cofactors for basic immune readiness.

Zinc citrate and vitamin C are present at levels that support foundational immune defenses. However, the extreme caloric and carbohydrate density means that immune actives are provided at a very low concentration per serving.

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Impact
High effect
C+ Goal FitB+ Strength of SupportB+ CoverageD Formula Quality

This mass-gaining formula contains a wide array of vitamins and minerals, including a high dose of Potassium for blood pressure management. Magnesium and B-vitamins are included, which support cardiac energy and homocysteine metabolism.

The massive caloric and sodium content may be counterproductive for certain cardiovascular goals. It appears well aligned for athletes with very high nutrient needs but is less focused for general heart health.

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Impact
High effect
B Goal FitB+ Strength of SupportC CoverageD- Formula Quality

Provides meaningful structural support through high doses of calcium citrate, calcium phosphate, and phosphorus. These minerals are essential for mineralization and maintaining the structural integrity of bone tissue.

Very low vitamin D3 dosage and the absence of vitamin K2 limit the efficient transport and regulation of calcium. Massive padding with macronutrients and fitness additives distracts from a focused bone health approach.

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Impact
Moderate effect
C- Goal FitC+ Strength of SupportD CoverageD+ Formula Quality

Choline bitartrate and creatine monohydrate provide foundational support for neurological energy and neurotransmitter precursors. These ingredients may contribute to maintaining cognitive function during high-intensity training.

Mass gainer approach focuses primarily on caloric density rather than targeted mental performance.

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Ingredients

IngredientAmount per serving
Calories
1250 Calorie(s)
Total Fat
4.5 Gram(s)
Cholesterol
110 mg
Total Carbohydrates
252 Gram(s)
Protein
50 Gram(s)
Vitamin A (Beta-Carotene)
750 mcg
Vitamin C (Ascorbic Acid)
60 mg
Vitamin D (Cholecalciferol)
5 mcg
Vitamin E (D-Alpha-Tocopherol Succinate)
20 mg
Thiamine (Thiamine Mononitrate)
4.8 mg
Riboflavin
4 mg
Niacin (Niacinamide)
50 mg
Vitamin B6 (Pyridoxine Hydrochloride)
5 mg
Folate
680 mcg DFE
Vitamin B12 (Cyanocobalamin)
10 mcg
Biotin (D-Biotin)
300 mcg
Pantothenic Acid (D-Calcium Pantothenate)
25 mg
Choline (Choline Bitartrate)
250 mg
Calcium (Calcium Citrate, Dicalcium Phosphate)
600 mg
Iron (Ferrous Fumarate)
8 mg
Phosphorus (Dicalcium Phosphate, Dipotassium Phosphate)
590 mg
Iodine (Potassium Iodide)
53 mcg
Magnesium (Magnesium Aspartate)
140 mg
Zinc (Zinc Citrate)
15 mg
Selenium (Selenomethionine)
70 mcg
Copper (Copper Gluconate)
1 mg
Manganese (Manganese Amino Acid Chelate)
2 mg
Chromium (Chromium Polynicotinate)
120 mcg
Molybdenum (Molybdenum Amino Acid Chelate)
75 mcg
Sodium
570 mg
Potassium (Dipotassium Phosphate)
1430 mg
Creatine Monohydrate
3 Gram(s)
L-Glutamine
500 mg
Inositol
250 mg
PABA
5 mg
Adults 18–50
Report overview
Niacin (Niacinamide) · 50 mg OverallScore78
A Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyF Value
This mass gainer provides 50 mg of niacinamide, a non-flushing form of Vitamin B3 that supports energy metabolism during heavy training. It serves as a comprehensive nutritional tool for muscle recovery but carries a high price per serving compared to basic vitamins. The dosage is safe and well-aligned with general daily wellness needs.
Sodium · 570 mg OverallScore72
C Active Ingredient Quality & BioavailabilityB+ Dose, Safety & Label TransparencyB- Value
Optimum Nutrition's Serious Mass is a comprehensive gainer that provides balanced electrolytes alongside high caloric density. It includes bioavailable mineral forms to support muscle function during periods of intense growth and training.
D+ Active Ingredient Quality & BioavailabilityA+ Dose, Safety & Label TransparencyD+ Value
This mass gainer utilizes dipotassium phosphate to provide a very high dose of potassium. While effective for athletes, it is a very expensive way to obtain potassium compared to standalone supplements.
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