Optimum Nutrition Serious Mass 12 Lbs



4 in stock


Sometimes it can be just as hard to put on weight as it is to lose it.


Struggle to eat large amounts of food? Want to gain some serious muscle? There are many reasons why you may want to put on weight, and consuming more protein is one of the healthiest ways to do so.


A mistake a lot of people make when they want to gain muscle weight is starting to eat lots of junk and high-fat foods like takeaways, cakes, chocolate, etc. when what they really need is protein. This Optimum Nutrition Serious Mass powder is the ultimate weight gain formula. In each weight-gain shake, you get 1,250 calories and less than 5g of fat per serving. This includes 250g of carbohydrates and 50g of blended protein to support muscle growth.


The protein powder contains creatine which can improve your exercise routine. It also contains 25 vitamins and minerals including vitamin B12, magnesium, biotin, vitamin C and calcium, so it can also help support your micronutrient requirements.


How does protein help with weight gain?


You need to be consuming more calories than your body is burning to gain weight, and if that comes from protein then it makes it easier for your body to turn it into muscle. If you get more calories from carbohydrates or fat, your body will store it as fat instead.


How much protein do I need to gain muscle?


If you want to gain muscle, it is recommended that you consume 1.8g of protein for every kg you weigh. And do some weight training, of course!


What are the benefits of creatine?


Creatine is a firm gym-bunny favourite, known to boost athletic performance. It can increase energy levels in muscle cells, speed up muscle growth, and improve performance of high-intensity exercises.


How to enjoy Optimum Serious Mass Chocolate Protein Powder:


Simply mix 2 scoops of protein powder with water or your choice of milk then shake or stir until the powder is dissolved. Supercharge your Serious Mass shake by adding fresh or frozen fruits, nut butters, flaxseed, chia seeds, or other ingredients into the mix for even more of a calorie and protein hit.


Enjoy the protein shakes between meals, after your workout or before bed.

Nutritional Information


Energy 1250kcal
Protein 50g
Total Carbohydrate 250g
of which sugars 21g
Total Fat 5g
of which saturates 2g
Dietary Fibre 3g
Sodium 500mg
Cholesterol 10mg
Vitamin A 997IU
Vitamin D 76IU
Vitamin E 4.7IU
Vitamin C 21.9mg
Thiamin 0.5mg
Riboflavin 0.6mg
Niacin 6.7mg
Vitamin B6 0.7mg
Folic Acid 71.3µg
Vitamin B12 0.5µg
Biotin 100µg
Pantothenic Acid 2.1mg
Potassium 1395mg
Calcium 350mg
Phosphorus 165mg
Magnesium 82.8mg
Iron 4.2mg
Zinc 2.7mg
Copper 0.5mg
Manganese 500µg
Selenium 35µg
Chromium 130µg
Iodine 20.8µg
Creatine Monohydrate 1g
L-Glutamine 500mg
Glutamine Peptides 500mg
Choline 250mg
Inositol 250mg
Per Serving (334g):

Additional information


6lbs, 12lbs


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