Optimum Nutrition Serious Mass - Chocolate 12lb

What it is

Optimum Nutrition Serious Mass is a high-calorie weight gainer delivering around 1,250 calories and 50g of protein per two-scoop serving, plus over 250g of carbohydrates and added creatine, glutamine and vitamins, to help hard-gainers build size and mass. It is best used alongside your regular meals to reach a calorie surplus. This 12lb tub in Chocolate provides about 16 servings.

Chocolate 12lb is the workhorse size — buy it once you know you will finish it, not to try the product out.

Who it's for

Residents and gym members running a proper bulking programme who will get through sixteen servings before it goes stale.

How to use it

Blend two scoops with water or milk once or twice a day between meals or after training.

Worth knowing

Contains milk. If your appetite is already fine, you will usually do better adding food and using plain whey — a gainer is for people who genuinely cannot eat enough.

Our take

Worth being clear how this is meant to work: it goes alongside your normal meals to create a surplus, not instead of them — people who swap food for shakes rarely gain well. Two servings a day is realistic for hard-gainers, one is plenty for most. The 12lb is also heavy to fly home with.

More in this range

In stock

Rule 1 Mass Gainer - Chocolate 12lb

In stock

Rule 1 Mass Gainer - Vanilla 12lb

In stock

Rule 1 Mass Gainer - Vanilla Creme 6lb

In stock

Rule 1 Mass Gainer - Chocolate Fudge 6lb

Ask us

BAAM Ultra Mass - Vanilla 6lb

In stock

Optimum Nutrition Serious Mass - Vanilla 12lb

In stock

Optimum Nutrition Serious Mass - Chocolate 6lb

In stock

VX Clean Mass Hi-Protein Gainer - Chocolate 6lb