Optimum Nutrition Serious Mass 5.45kg in Banana flavor is a premium weight gain supplement designed to help you achieve your muscle-building goals. This high-calorie formula is perfect for those who struggle to gain weight or need an extra boost to support their intense training regimen. Each serving delivers a massive 1,250 calories, providing the energy and nutrients necessary to fuel your workouts and promote muscle growth.

Packed with 50 grams of high-quality protein from a blend of whey, casein, and egg, Serious Mass ensures a sustained release of amino acids to support muscle recovery and growth. The carbohydrate content, derived from maltodextrin, provides 252 grams per serving, supplying the body with the energy needed to power through intense training sessions and replenish glycogen stores.

In addition to its macronutrient profile, Serious Mass is enriched with 25 essential vitamins and minerals, including vitamin C, vitamin D, and zinc, to support overall health and immune function. The formula also includes creatine, glutamine, and glutamic acid, which are crucial for enhancing performance and recovery.

The delicious banana flavor makes it a treat to consume, whether mixed with water or your favorite beverage. Simply blend two heaping scoops with water or milk for a convenient and effective way to increase your daily calorie intake. Optimum Nutrition Serious Mass is the ideal choice for athletes and fitness enthusiasts looking to gain size and strength in a healthy and efficient manner.

Maltodextrin, WHEY Protein Concentrate [MILK], Calcium CASEINATE [MILK], Fat-Reduced Cocoa Powder, Creatine Monohydrate, Flavouring, MILK Mineral Complex, Medium Chain Triglycerides [MILK], EGG Albumen, Sodium Chloride, Dipotassium Phosphate, Vitamin & Mineral Blend (Sodium L-Ascorbate, Ferric Pyrophosphate, D-Alpha-Tocopheryl Acetate, Nicotinamide, Zinc Oxide, Retinyl Acetate, Calcium D-Pantothenate, Sodium Fluoride, Manganese Sulphate, Potassium Iodate, Cyanocobalamin, D-Biotin, Chromium (III) Chloride, Pteroylmonoglutamic Acid, Cholecalciferol, Sodium Selenite, Cupric Citrate, Pyridoxine Hydrochloride, Thiamine Hydrochloride, Phylloquinone, Riboflavin, Sodium Molybdate), Glutamine Peptides [WHEAT GLUTEN], L-Glutamine, Magnesium Oxide, WHEY Powder [MILK], Inositol, L-Ascorbic Acid, Sweetener (Sucralose), Antioxidant (Tocopherol-Rich Extract), Calcium D-Pantothenate, Pteroylmonoglutamic Acid.

Refer to the product packaging label for ingredient updates.

UK, Europe & Rest of the World Shipping Details:
Same day dispatch for orders placed by 2pm (Orders after 2pm dispatched next working day).

Free shipping on orders over £45 to the UK.

Returns: Our products are meant to make you feel healthy and at your best. If you need to return your item, you can do so free of charge within 14 days in the same original and unopened packaging.

For best results, consume this 1263-calorie serving mindfully. Each portion delivers 50g of muscle-supporting protein and 251g of energy-rich carbohydrates. Monitor your saturated fat intake, with 2.4g present per serving from the total 5.5g fat content. The 26g of sugars and 3.2g of fiber support balanced energy release. Contains 1.56g salt - adjust other daily sodium intake accordingly. (5284 kJ total energy value)

Please consult the product packaging for accurate instructions on how to use the product.