Based on 10,000+ Reviews
Okendo Reviews Logo
Collection Banner
Home / Products / Diet Fuel Ultra Lean Protein by USN
Quick view
Diet Fuel Ultra Lean Protein by USN
Diet Fuel Ultra Lean Protein by USN
Diet Fuel Ultra Lean Protein by USN
Quick view
Save $29.99
View full details

USN Diet Fuel Ultra Lean

Achieving your weight loss goals has never been more delicious with USN Diet Fuel. This exceptional product is the perfect meal replacement, available in a range of delightful flavours that will leave your taste buds satisfied. Diet Fuel's high protein content not only helps you feel more satiated throughout the day but also contains Tolerase-L pH-stable lactase to aid the digestion of lactose, making it suitable for lactose-sensitive individuals. With USN Diet Fuel, you can confidently replace 1-2 meals as part of your energy-restricted diet, knowing that you're nourishing your body with a vitamin complex that supports your overall health and well-being. As a weight loss meal replacement or a high-protein snack, Diet Fuel delivers the perfect combination of taste and nutrition to keep you on track with your weight loss journey.

  • High Protein to help you feel satiated throughout the day (with added Tolerase-L pH-stable lactase to aid the digestion of lactose.)
  • Weight loss meal replacement or high protein snack.
  • Vitamin complex to support health and wellbeing.

Fuel your weight loss success with USN Diet Fuel and experience the benefits of a high-protein diet that leaves you feeling full and satisfied. Embrace the convenience of a complete meal replacement while enjoying the range of delicious flavours. The added vitamin complex ensures your body receives the essential nutrients it needs for optimal health and well-being. Take charge of your weight loss and wellness goals with USN Diet Fuel, your ultimate ally in achieving lasting results.


  • Protein Blend [Whey protein concentrate (Milk), Soya protein isolate, Milk protein isolate, Whey protein isolate (Emulsifier: Sunflower lecithin) (Milk), Hydrolysed whey protein isolate (Emulsifier: sunflower lecithin) (Milk)], Maltodextrin, Polydextrose, Fat powder (Refined soya bean oil, Glucose syrup, Milk protein, Stabilizer (Pentasodium triphosphate), Free flowing agent (Silicium dioxide), Natural flavour), Inulin, High Amylose Maize Starch, Tri potassium citrate, Milk minerals complex, Thickeners (Guar gum, Xanthan gum), Natural flavour, Sodium chloride, Stabiliser (Cellulose gum),Creamer [High oleic Sunflower oil, Glucose syrup, Milk protein, Free flowing agent (Silicium dioxide)], Magnesium oxide, Sweetener (Sucralose), Vitamin & Mineral Blend: Chromium picolinate, Ascorbic acid, Ferrous fumarate, D-Alpha Tocopherol, Zinc Citrate, Potassium iodate, Folic acid, Nicotinamide, Manganese ascorbate, Sodium selenite, Copper bisglycinate, D-Calcium Pantothenate, Retinyl Palmitate, Cyanocobalamin, Pyridoxine hydrochloride, D-Biotin, Cholecalciferol, Thiamine hydrochloride, Vitamin K1 (Riboflavin, Phylloquinon), Colour (Beta Carotene), Tolerase™ L (pH-stable Lactase).
  • Add 1-2 scoops (54g) to 250ml-300ml of cold water.
  • Mix thoroughly in a blender or a shaker for about 30 seconds.
  • Have 1-2 servings as meal replacements daily.

Always read the label. Follow directions of use. Please read the label to decide whether this product is right for you.

Consult with your relevant healthcare professional before taking supplements or vitamins, especially if you are currently taking medication. If symptoms transpire and persist, seek immediate advice from your relevant healthcare professional.

If pregnant, planning pregnancy, or breastfeeding, consult with your healthcare professional before using any health foods, functional foods, supplements or vitamins.

Supplements and vitamins should not be used by persons under the age of 16, unless the product is specifically designed for children or otherwise advised on by your healthcare professional.

Supplements, vitamins and minerals should never replace a balanced and varied diet.

Keep all supplements and vitamins out of reach of children. Always follow advised storage conditions and consumption instructions.

Do not exceed recommended daily dosage. Do not consume products if seals are broken or damaged. Do not consume products if best before or expiry dates have exceeded.

Some powdered products, including (but are not limited to) pre-workout, fat burners, single amino acids, pump/nitric oxide boosters, citrulline, agmatine, arginine and carnitine are naturally deliquescent products, or contain ingredients which are naturally deliquescent. Clumping or hardening of these products over time is a natural and common occurrence, and despite containing moisture absorption sachets, these products may still clump or harden over time.

Although extra care is taken to ensure all product Descriptive Information, Nutritional Information and Directions Of Use are kept up-to-date and current, manufacturers and suppliers may change product formulations and ingredients without warning, and may not advise of us these changes. Please ensure Supplement Mart endeavors to keep products updated with the latest and correct product information which the manufacturer or supplier has directly provided us.

If you are purchasing items which are prone to melting (including but not limited to, chocolate bars, protein bars, items with chocolate chips or pieces etc), or items which can easily be damaged (including but not limited to, chips, aluminum cans, glass vitamins etc), we strongly recommend you purchase Shipping Insurance with your order. Supplement Mart takes no responsibility for items which are melted or damaged in transit, and we do not replace or refund any items which are damaged under these circumstances if they are not covered by Shipping Insurance. You can purchase Shipping Insurance at the cart/checkout page with your order.

We also strongly recommend to not authorize “Authority to Leave” on your order if it contains items which can melt, due to the risk of these items being left in an unsuitably warm and sunny position by the courier.

Purchase of clearance and special items is final, we do not offer exchanges or refunds on these items.