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Serious weight gain requires serious calories. Optimum Nutrition Serious Mass is the ultimate weight gain formula.
Those who need the extra calories most often have the toughest time consuming enough of them. For many aspiring to be bigger, Serious Mass is the ultimate in weight gain formulas. With over 1,250 calories per serving to boost daily calorie intake, 50g high protein to support muscle growth and repair, over 250g carbohydrates, and now with 3g of added creatine per serving to support performance, you’ve got nothing to lose and lots to gain. It is time to stop thinking small and get serious – SERIOUS MASS.
Use anytime, it is quick, convenient and easy to prepare. Serious Mass is ideal between meals, after weight training as part of your recovery routine and before bed. Just mix two scoops of Serious Mass (334g) with 710ml of water to create a tasty, calorie-packed shake.
(Based on 42 reviews)
The subjective customer reviews below are only moderated for offensive content – they should not be regarded as medical or health advice; no reliance should therefore be placed on them; and they are not endorsed by Holland & Barrett. If you have any health problems or questions regarding the suitability of any product please contact a health professional. Products are not medicinal unless otherwise stated.
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“It was the best thanks”
Yes, I recommend this product.
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“Don’t taste great, have to use a washing up bowl to make “ a serving” puts you off eating anything else entirely ever.”
No, I do not recommend this product.
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“I don't know why everyone is moaning about the taste i love it but then I suppose we all have our own taste I was doing powerlifting and wanted to put weight on and as u know the bigger u get the stronger u get this product is great with a good diet I used to take it before I went to sleep so when I got up in the morning I was ready to eat again I find if u drink it during the day it effects your eating the only reason I give it 4 stars is because I find when I stop taking it the weight falls off me”
Yes, I recommend this product.
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“Bought this for my Son as he's doing fitness was recommended it.”
Yes, I recommend this product.
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“Helped me put on 1stone in 2 months tast was OK blends well.”
Yes, I recommend this product.
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“easy to make great to get in extra calories”
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“Pros: Tastes really good Good portion size Negatives: Haven't seen any increase in strength or size YET. Its only been 2-3 weeks.”
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“Hi. It didn't taste bad, but I was bothered by the lumps of biscuit in side.”
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“Tried the cookies and cream for a change to my usual chocolate flavour and regretted it immediately. The smell is unpleasant and the taste is equally as off putting. I ended up throwing it away and reverting back to my usual choice. Does the job for weight gain if you can stomach the terrible taste.”
No, I do not recommend this product.
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“I think the best way to make it is with semi skimmed milk, When mixed add ice cubes its delicious & not as sweet”
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Full ingredients
Maltodextrin, WHEY (Milk) Protein Concentrate, Calcium CASEINATE (Milk) (Emulsifier: SOY Lecithin), Flavourings, Cookie Crumb (1.4%) (WHEAT Flour [GLUTEN], Sugar, Vegetable Fats: Palm and Rapeseed in varying proportions; Fat-Reduced Cocoa Powder), EGG Albumen, Sodium Chloride, Medium Chain Triglycerides, Dipotassium Phosphate, Creatine Monohydrate, Choline Bitartrate, L-Glutamine, Glutamine Peptides [GLUTEN], WHEY (Milk) Powder, Inositol, Vitamin Blend (L-Ascorbic Acid, Nicotinamide, DL-Alpha-Tocopheryl Acetate, Calcium D-Pantothenate, Pyridoxine Hydrochloride, Riboflavin, Thiamin Hydrochloride, Retinyl Acetate, Pteroylmonoglutamic Acid, D-Biotin, Cholecalciferol, Cyanocobalamin), Sweetener (Sucralose), Magnesium Oxide, Potassium Chloride, Ferric Pyrophosphate, Zinc Oxide, Cupric Gluconate, Manganese Sulphate, For allegens - see ingredients in bold
Always read the label before use
| Per | 100g / 330g serving |
| Energy (kJ) | 1605kJ / 5297kJ |
| Energy (kcal) | 384kcal / 1266kcal |
| Fat | 1.9g / 6.2g |
| Of which saturates | 1g / 3.2g |
| Carbohydrate | 76g / 252g |
| Of which sugars | 7.8g / 26g |
| Fibre | 0.2g / 0.6g |
| Protein | 15g / 50g |
| Salt | 1g / 3.4g |
| Vitamin A | 92.7µg / 306µg |
| Vitamin D | 0.59µg / 1.9µg |
| Vitamin E | 1.1mg / 3.6mg |
| Vitamin C | 6.8mg / 22mg |
Not for use by those with pre-existing medical conditions or those taking any medications, those under the age of 18 or women that are pregnant or breast-feeding.
We go to great efforts to ensure that the information on this page is accurate at the time that the page was last edited. As we are constantly reviewing and developing our products to meet our consumer needs, consumers, particularly those that suffer from allergies and intolerances, should always check product labelling, warnings, and directions provided with the product that is delivered, prior to use or consumption.
Add 2 heaped scoops (330 g) of SERIOUS MASS™ to a blender filled with 710 ml 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. TIP: New users may find it beneficial to begin with ½ a serving daily for the first week and then gradually increase to 1 or more full servings several times a day.
Please ensure you read the label of all products purchased as part of this bundle before use.
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