SUPPSAVER
Serious Mass by Optimum Nutrition
Supplement · 5.4kg · tracked across 10 retailers, refreshed daily.
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Overview
Optimum Nutrition Serious Mass by Optimum Nutrition is a supplement that SuppSaver compares across 4 Australian retailers. The best price we're currently tracking is $136.36 at ASN, which works out to $18.19/100g protein — the true-cost figure we rank every supplement on. That comes to roughly $8.52 per serve. At 14% protein by weight, the cost per 100g of actual protein — not just powder — is what decides whether it's good value.
Retailer prices shift week to week, so we re-check every listing daily and rank by true cost per 100g of protein rather than sticker price. That lets you see whether Serious Mass by Optimum Nutrition is genuinely the cheapest supplement on the market or simply discounted right now. It's listed in 5.4kg, 5.4kg and 2.7kg. Shoppers rate it 4.7 out of 5 from 61 reviews. Use the price history, the per-store breakdown and the alternatives below to confirm you're getting the best deal before you buy.
Price history
-12.5% 30d4 stores carry this
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What people say
4.7(61)Customers are highly satisfied with Serious Mass, frequently praising its effectiveness for weight gain, ease of digestion, and overall value for money. The chocolate and banana flavors receive significant acclaim for their taste, though some users noted that the banana flavor is particularly good when mixed with water. Common criticisms include difficulties with the powder's consistency, with some users finding it hard to mix or describing the texture as too thick.
About
Optimum Nutrition Serious Mass is a high calorie weight gainer designed to provide serious nutritional support for those looking to increase their quality calorie intake. Each serving delivers 1250 calories, 50 grams of protein, and over 250 grams of carbohydrates along with 25 essential vitamins and minerals. This powdered mix can be used as a meal replacement or a post workout supplement to support muscle growth. It is ideal for individuals who need to bulk up and achieve their fitness goals when combined with a balanced diet and regular weight training.