🟢 99/100

This product looks safe

  • Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)
  • 53% of ingredients have research evidence
C Label Compliance Grade

Product Label

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Safety Alerts

⚠️ Niacin: 50mg is 1.4× the Tolerable Upper Intake Level (35mg)

Label Data

167 Gram(s) Serving Size
8 Servings
Other Combinations Product Type
53% Evidence Coverage

Supplement Facts — Evidence Check

Calories
1250 Calorie(s)
Total Fat
4 Gram(s) (6% DV)
Cholesterol
80 mg (27% DV)
Total Carbohydrates
254 Gram(s) (85% DV)
Protein
50 Gram(s) (100% DV)
Vitamin A
5000 IU (100% DV)
Vitamin C
60 mg (100% DV)
200 IU (50% DV)
✅ Within RDA (0.3× RDA of 0.015 mg) 📚 604 studies (Tier A: 16, B: 251)
RDA 0.015mg This product: 0.005mg UL 0.1mg
30 IU (100% DV)
✅ 1.3× RDA — within safe limits 📚 177 studies (Tier A: 3, B: 90)
RDA 15mg This product: 20.1mg UL 1000mg
4.8 mg (320% DV)
📊 4.0× RDA — above typical dose 📚 76 studies (Tier A: 0, B: 33)
RDA 1.2mg This product: 4.8mg
4 mg (235% DV)
📊 3.1× RDA — above typical dose 📚 12 studies (Tier A: 0, B: 1)
RDA 1.3mg This product: 4mg
50 mg (250% DV)
⚠️ Exceeds Tolerable Upper Intake Level by 1.4× (UL: 35 mg) 📚 193 studies (Tier A: 5, B: 63)
RDA 14mg This product: 50mg UL 35mg
5 mg (250% DV)
📊 3.8× RDA — above typical dose (UL: 100 mg) 📚 113 studies (Tier A: 3, B: 35)
RDA 1.3mg This product: 5mg UL 100mg
400 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.4 mg) 📚 225 studies (Tier A: 10, B: 105)
RDA 0.4mg This product: 0.4mg UL 1.0mg
10 mcg (167% DV)
📊 4.2× RDA — above typical dose 📚 138 studies (Tier A: 1, B: 44)
RDA 0.0024mg This product: 0.01mg
300 mcg (100% DV)
📊 10.0× RDA — above typical dose 📚 26 studies (Tier A: 0, B: 11)
RDA 0.03mg This product: 0.3mg
25 mg (250% DV)
📊 5.0× RDA — above typical dose 📚 1 studies — no high-quality reviews
RDA 5mg This product: 25mg
Calcium
630 mg (63% DV)
Iron
5 mg (28% DV)
460 mg (46% DV)
✅ Within RDA (0.7× RDA of 700 mg) 📚 12 studies (Tier A: 0, B: 3)
RDA 700mg This product: 460mg UL 4000mg
150 mcg (100% DV)
✅ Within RDA (1.0× RDA of 0.15 mg) 📚 243 studies (Tier A: 4, B: 133)
RDA 0.15mg This product: 0.15mg UL 1.1mg
140 mg (35% DV)
📊 Market median: 4002.0mg (1 products) 📚 20 studies (Tier A: 0, B: 2)
This product: 140mg
15 mg (100% DV)
✅ 1.4× RDA — within safe limits 📚 258 studies (Tier A: 6, B: 134)
RDA 11mg This product: 15mg UL 40mg
70 mcg (100% DV)
✅ 1.3× RDA — within safe limits 📚 172 studies (Tier A: 0, B: 67)
RDA 0.055mg This product: 0.07mg UL 0.4mg
1 mg (50% DV)
✅ 1.1× RDA — within safe limits 📚 36 studies (Tier A: 0, B: 11)
RDA 0.9mg This product: 1mg UL 10mg
2 mg (100% DV)
✅ Within RDA (0.9× RDA of 2.3 mg) 📚 8 studies — no high-quality reviews
RDA 2.3mg This product: 2mg UL 11mg
120 mcg (100% DV)
📊 3.4× RDA — above typical dose 📚 197 studies (Tier A: 1, B: 55)
RDA 0.035mg This product: 0.12mg
75 mcg (100% DV)
✅ 1.7× RDA — within safe limits 📚 2 studies — no high-quality reviews
RDA 0.045mg This product: 0.075mg UL 2mg
Sodium
430 mg (18% DV)
Potassium
940 mg (27% DV)
📊 Market median: 5.0mg (298 products) 📚 701 studies (Tier A: 5, B: 123)
This product: 1mg
500 mg
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 500mg
📊 Market median: 420.0mg (227 products)
Median 420.0mg This product: 500mg
250 mg
✅ Within RDA (0.5× RDA of 550 mg) 📚 36 studies (Tier A: 1, B: 7)
RDA 550mg This product: 250mg UL 3500mg
250 mg
📊 Market median: 550.0mg (217 products) 📚 29 studies (Tier A: 0, B: 5)
This product: 250mg
📊 Market median: 500.0mg (9 products)
This product: 5mg

Other Ingredients

Maltodextrin Whey Protein Concentrate Calcium Caseinate Egg Albumin Sweet Dairy Whey Natural & Artificial Flavors Dipotassium Phosphate Magnesium Aspartate Dicalcium Phosphate Calcium Citrate Ascorbic Acid Niacinamide Zinc Citrate Beta-Carotene D-Calcium Pantothenate D-Alpha-Tocopheryl Succinate Selenomethionine Copper Gluconate Ferrous Fumarate Manganese Amino Acid Chelate Thiamine Mononitrate Pyridoxine Hydrochloride Riboflavin Chromium Polynicotinate Folic Acid Biotin Molybdenum Amino Acid Chelate Cholecalciferol Potassium Iodide Cyanocobalamin Medium Chain Triglyceride Lecithin Malic Acid Acesulfame Potassium Sucralose FD&C Yellow #5

Label Claims — Verification

Nutrient
All Other
Structure/Function
All Other (100% of products) Structure/Function (92% of products) Nutrient (35% of products)

Target Groups

Adult (18 - 50 Years) Women (not pregnant or lactating)

Product Information

📋 Directions for Use

Directions: Add two heaping scoops of Serious Mass to a blender filled with 24 oz. of water. Blend for 45–60 seconds. Then add a few ice cubes and, if desired, other calorie-contributing ingredients (see "Supercharge Your Serious Mass" on the opposite panel) and blend for an additional 30–45 seconds. Tips: Mixing two scoops of Serious Mass with 24 oz. of nonfat or low fat milk instead of water will give you a thicker, creamier, higher-calorie shake. New users may find it beneficial to begin with ½ of a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.

Between Meals: Drink ½–1 serving of Serious Mass between meals to maintain positive nitrogen balance and support a high-calorie diet. Post-Workout: Begin drinking ½–1 serving of Serious Mass 30–45 minutes following exercise to support maximum recovery. Before Bed: Drink ½–1 serving of Serious Mass about 45–60 minutes before bed to provide nutrients to recovering muscle throughout the night. Note: For best results use Serious Mass combined with intense weight training (3–5 times per week) and a sensible whole foods diet. Also, keep in mind that sufficient recovery between workouts impacts your ability to gain lean mass. Allowing at least 48 hours between workouts involving the same body parts is recommended.

⚠️ Warnings & Precautions

Allergen information: Contains milk, egg, wheat (glutamine peptides) and soy (lecithin) ingredients.

Warning: Not for use by those with pre-existing medical conditions or taking any medications, those under the age of 18 or women that are pregnant or nursing.

Warning: Not for use by those with pre-existing medical conditions or taking any medications, those under the age of 18 or women that are pregnant or nursing.

🧪 Formulation Notes

The true strength of weight gainers 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 to consume enough calories through whole foods alone. With Serious Mass, you've got nothing to lose and lots to gain. We've consolidated 1,250 calories, 50 grams of protein, 254 grams of carbohydrates, 25 vitamins & minerals, glutamine and creatine into every serving. It's time to stop thinking small: get serious-Serious Mass.

Beyond the basics 1,250 Calories per Serving in Water; 1,640 Calories When Made with Low Fat Milk. 50 Grams of Protein. 254 Grams of Carbohydrates to Support Fueling of Intense Workouts and Aid in the Replenishment of Glycogen Stores - with No Added Sugar. Includes Creatine, L-Glutamine & Glutamine Peptides, Choline, Inositol, PABA, and MCTs.

254 Grams of Carbohydrates to Support Fueling of Intense Workouts and Aid in the Replenishment of Glycogen Stores - with No Added Sugar.

To Ensure the Authenticity of This Product, Make Sure the ON HOLOGRAM STRIPE Is Present On The Neckband. Further info at: www.optimumnutrition.com/authentic

50 G Protein 254 G Carbs 25 Vitamins & Minerals Banana Naturally & artificially flavored High protein weight gain powder 1250 calories

Serious Mass is a weight-gain supplement that can be used to feed serious calorie needs in a variety of different ways.

Additional Information

Manufactured in the USA in our NSF GMP Registered facility This product contains ingredients of international and domestic origin

Serving scoop included, but may settle to the bottom during shipping

Supercharge your Serious Mass by adding one or more of these foods to your shake. Serving Size Calories 1/2 cup Granola 250 1/4 cup Chocolate Chips 198 2 tbsp. Peanut Butter 190 1 oz. Almonds 167 1 oz. Peanuts 164 1/2 cup Ice Cream 160 1 cup Whole Milk 150 1/2 cup Coconut 139 1 tbsp. Flaxseed Oil 115 1/2 cup Oat Bran 108 1 small Banana 105 1 tbsp. Honey 64 1 tbsp. Molasses 43

1 (800) 705-5226 Truestrength.com Scan this QR code with your smartphone for promotions and authenticating your product.

Authentic Optimum Nutrition Product

Product Details

UPC / SKU 7 48927 02886 7
DSLD Entry Date 2025-06-25
Product Type Other Combinations
Form Powder
DSLD ID 332128
Data Updated 2026-04-11

Research Evidence

7 Research Sources
26 Avg Quality Score
5 Other
2 Rct
C Para-aminobenzoic acid (PABA) used as a marker for completeness of 24 hour urine: effects of age and dosage scheduling
Rct European journal of clinical nutrition 2003
D [The diagnostic value of serum PABA determination in pancreatic disease and in relation to anticholinergic medication]
Rct Gastroenterologisches Journal : Organ der Gesellschaft fur Gastroenterologie der DDR 1989
D Para-aminobenzoic acid therapy in scleroderma and lymphoblastoma cutis
Other The Journal of laboratory and clinical medicine 1948
F The PABA story
Other The Australasian journal of dermatology 1999
F Sodium para-aminobenzoate PABA in the treatment of dermatoses
Other The Journal of investigative dermatology 1952
F Para-aminobenzoic acid therapy in lymphoblastoma cutis and mycosis fungoides
Other Cancer 1954
F Photochemical formation of singlet molecular oxygen (1O2) in illuminated aqueous solutions of p-aminobenzoic acid (PABA)
Other Journal of photochemistry and photobiology. B, Biology 1996
View all evidence for Paba →

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