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Free delivery inside Kathmandu Valley on orders over NPR 5,000

Serious Mass by Optimum Nutrition — front view

Optimum Nutrition · Mass Gainer

Serious Mass Gainer

3.4 kg

NPR 11,200

Price shown is for 3.4 kg and may change — we confirm before you pay.

In stock in Lalitpur

  • Message us and we'll confirm stock, batch and expiry before you visit.
  • Free delivery inside Kathmandu Valley on orders over NPR 5,000
  • Collect in store or arrange delivery — we'll tell you both options.

Flavours we usually have

  • Chocolate
  • Vanilla

Availability changes often — we'll confirm flavours on WhatsApp.

What it is.

One of the most widely recognised mass gainers, and the format most people picture when they hear the term. As with all gainers, the useful question is whether you actually need the extra calories — if not, a protein powder and a bigger plate of rice is a far better-value route to the same outcome.

A 3.4 kg mass gainer with 1,000 calories and 50 g of protein per large serving.

Key features

  • About 1,000 calories and 50 g of protein per serving
  • 3.4 kg tub
  • Wide availability in most countries

Who it's for

  • Hard gainers
  • High-calorie phases of training

How to use it

  1. 01 Mix one large serving with 350–400 ml of water or milk.
  2. 02 Take post-training or as an extra drink between meals.

Directions shown are general guidance from the manufacturer. Follow the label on your pack, and speak to a doctor if you have a health condition, are pregnant, or take medication.

Nutrition facts

Serving size: 340 g (1 large serving) · About 10 servings

Calories 1000
Total fat 7 g
Total carbohydrate 160 g
Dietary fibre 0 g
Total sugars 11 g
Protein 50 g
Sodium 310 mg

Demo values shown for layout only. Replace with the nutrition panel printed on the pack you supply. Not medical advice.

Nutrition information on this page is demo content that mirrors the manufacturer's label. Always read the panel on the pack you receive — formulas change between batches.

Check it's genuine

Ask us for the batch number and expiry date before you order, or send us a photo of the pack you're considering.

Ask about authenticity

Questions about this product.

Still unsure? Message us — we'd rather answer properly than sell you the wrong thing.

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Is there a lighter alternative?

If a full 1,000-calorie serving is too much, use half a serving with more liquid, or switch to a protein powder plus oats and milk, which gives you the same calories in a form most people find easier to eat.

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