USN Diet Fuel
  • USN Diet Fuel
  • USN Diet Fuel
  • USN Diet Fuel

USN Diet Fuel

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USN Diet Fuel UltraLean represents the newest and most advanced technology for management of body weight while still maintaining lean muscle tissue.

This delicious, low-GI formula provides you with a compact snack/light meal for any time of the day. It contains essential nutrients in adequate quantities to help promote sensible, but also prolonged weight control. The cutting-edge blend consists of N-Acetyl-L-Carnitine, HCA (Hydroxycitric acid), Chromium and a high level of bio-available Calcium, which have been shown to assist the weight control process through various mechanisms (excluding central nervous system stimulation).

The formula includes 25g High Biological Value Protein from various sources, as well as high fibre levels. Research has shown that protein rich food and a high fibre intake, could increase secretion of the anorexigenic insulinotropic hormone and glucagon-like peptide-1 (GLP-1) to improve glucose tolerance and reduce weight gain. The high quality protein substrates further assist in improving protein synthesis and lean muscle maintenance.

Category: Protein Powder

How To Use It

• As a nutritional supplement add 2 scoops (55g) to 300-350ml of cold water.

• Mix thoroughly in a blender or a shaker for about 30 seconds.

• Have 1-2 servings daily, as snack/light meal replacement.

• For optimal results, combine with a balanced, energy-controlled eating plan and regular physical activity.

Most Recent of 20 Reviews
Review by Jay (Date 1/25/16)
I've tried many different brands but this shake by USN has to be the best! My favourite is the vanilla flavour and I really find it fills me effectively.
Perfect in aiding
Review by Locoz(Date 1/25/16)
I am fairly active in training and hit a plateau with regards to results. Tried the Vanilla flavour, Mixed with water only it is waaay too sweet! Blended with granny smith apples (3-4 depending on size) with a little bit of water, server very chilled tastes amazing, lasts longer and aids in weight loss given that you stay active, this will not work (in my opinion & experience) if you are not training/taking a break from training.
Review by phiwahe(Date 8/4/15)
this product has effective results.I lost a lot of weight in a short time ,you ll gel full the whole day.
USN Diet Fuel
Take your fitness goal to the next level.
Free Delivery
for orders over R200.
All Major Centres
Orders over R200
Outlying Areas
Orders over R599
Expected Delivery
date for your parcel.
Johannesburg, Pretoria, Bloemfontein, Durban
Tue 13 December or Wed 14 December
Cape Town, Port Elizabeth, Outlying Areas
Wed 14 December or Thu 15 December
Nutritional Information

Serving Size: 2 Scoops (55g)
Servings per Container: 38 (2kg)

  Amount per Serving %NRV*
Carbohydrate 13.9g 
of which total sugar*4.7g 
Total Fat 3.8g 
of which saturated 1.6g 
Dietary Fibre** 5g 
Novel Fibre*** 1.8g 
Total Sodium 285mg 
Vitamin A 360mcgRE40%
Vitamin B10.5mg40%
Vitamin B2 0.5mg40%
Vitamin B6 0.7mg40%
Folic Acid 160mcg40%
Vitamin B12 1mcg40%
Pantothenic Acid 2mg40%
Vitamin C 40mg40%
Vitamin D 6mcg40%
Vitamin E 6mgTE40%
Garcinia Cambogia Extract 200mg 
(60% HCA)   
Glycaemic Index Low 
*% Nutrient Reference Values (NRVs) for individuals 4 years and older (2010).
** AOAC 985.29 method of analysis
*** AOAC 997.08 method of analysis
* Mostly intrinsic diary sugar and fructose.

Diet Fuel Protein Blend [Whey Protein Blend (Whey Protein Concentrate, Whey Protein Isolate), Soy Protein Isolate, Calcium Caseinate, Milk Protein Isolate (92% micellar casein)], Maltodextrin (Traditional & Lower GI version), Vegetable Fat Powder, Cocoa Powder (only in Choc variant), Polydextrose, Fructose, Flavouring, Inulin, Stabilisers, Calcium Phosphate, Sodium Chloride, N-acetyl-L-carnitine, Magnesium Oxide, Garcinia Cambogia Extract, MCT oil [Medium Chain Triglyceride vegetable oil (from coconut fruit)], Non-nutritive Sweetener blend (Sucralose, Acesulfame-K), Vitamin premix, Emulsifier (soy lecithin), Potassium Chloride, Tolerase L (ph-stable lactase), Chromium picolinate, Colourants (only in Strawberry flavour).

Allergen Warning: Cow's milk, Soy. May contain traces of barley (gluten). Although this product contains lactose, it is suitable for lactose intolerant individuals due to addition of lactase enzymes.


Consult your doctor prior to use, especially if you have a medical condition. This product is not recommended for pregnant/lactating women and individuals under the age of 18. Higher fibre intake may intially cause gastric discomfort and flatulence if one is not accustomed to this. This should pass within a few days. It is import to drink at least 10-12 glasses of water per day.

More Customer Reviews
Great product
Review by Jay-T(Date 7/19/15)
I just started using this product 2 weeks ago.I bought the vanilla flavour. I must say I am impressed and happy with the results. I lost some weight around my waist and my belly fat is also reducing. Good product. It works even better if you have oatmeal as breakfast in the morning which is also high in protein, fibre and clean carbohydrates. I go to gym in the morning and I combine my workout doing both cardio and endurance training. Remember to eat your vegetables. I changed my diet. In the place of white sugar I bought brown sugar but only use a little bit of sugar. Sugar is not healthy but brown sugar is at least the healthier alternative. Replace white rice with brown rice and also if you eat potatoes rather buy sweet potatoes instead of regular potatoes. Use skim milk in your cereal. If you love meat make sure to eat fish as it is high in protein and omega 3 compared to other meats. Chicken is also good. It's even better to eat skinless chicken breast. Use peanut butter with low GI brown bread and avoid using cooking oil when it comes to cooking your favourite meals. They high in saturated fats and polysaturated fats. Drink water throughout the day. Trust me this will help you see good results along with using this delicious diet fuel shake within a short time.
10 days and so far so good!
Review by mona(Date 6/10/15)
Recently changed my diet, cutting out sugar, salt, fatty/processed foods and my mom said I should use a diet meal replacement shake, usn looked like a good option since I also joined the gym. It fills me up, I have it for breakfast and don't get hungry again until lunch time, I use to be addicted to fizzy drinks and monster energy drinks but since using usn I don't even crave them. My clothes are starting to feel loose so it must be working since I rarely have time for the gym. But I am sure I wouldn't be seeing the same results if I had not changed my diet also.
Review by Babybongz(Date 3/29/15)
I really used to be a snacks addict. I used to eat a lot of chips and chocolates... you can name them I was a fan. Ever since I started drinking the diet fuel, I do not even crave for them. It's like a punishment when I have to eat snacks. My intake of food is so minimum and I have the energy to exercise. I was born fat and embraced my curves but, now they are shaping up big time. Only a week but, I'm seeing changes. Thank you USN TEAM
Good as a smoothie
Review by great(Date 2/24/15)
Vanilla is good. I add to water with fruit and vegetables and then blend. It may have boosted weight loss but i do exercise a lot.
missing scoop
Review by rebecca(Date 12/1/14)
This is a good product.however wen I purchased my diet fuel a month back I didn't get a scoop so I haven't been taking it in the correct dose.when I went back to dis chem they had said to me that all comes with a so wheres mine?
Review by Champion 8(Date 11/4/14)
Very effective! Fills you up for long. Taste is not great. Tastes like super M(chocolate) made out of water. Not bad but not great.
not bad
Review by chuckyj(Date 10/20/14)
Not crazy about the flavours but it mixes well, good as a convenient meal/snack replacement. I get hungry too soon after use though
not convinced
Review by Larry(Date 4/8/14)
I've heard some good reviews of this product but it has not really worked for me. would rather eat whole foods
Its average
Review by Jaco(Date 11/9/12)
It tastes good, but the same old boring flavours. It mixes well and works.
Not too bad
Review by Aveindha(Date 8/3/12)
I don't mind the taste, its quite nice actually, but i do prefer it with milk. I haven't been using it for that long. thing is though, I feel hungry only 2 hours after drinking it...I preferred GI lean shakes... but this does say snack replacement, although with the added sugars it makes for a little higher in sugars than I usually like.
Decent For The Money
Review by Justin(Date 4/30/12)
One of the first supplements I used. Decent protein content per serving but I don't like the added sugars and fillers. I've used all the flavours, Strawberry is probably your best bet though Vanilla is nice if you add fruit to make a smoothie. Not a bad meal replacement product for the price. This must be used as a meal replacement otherwise you run the risk of consuming too many calories and carbs. Use a low calorie pure whey if you seeking a protein shake (pre & post workout).
Tasty & Effective
Review by Annerie(Date 2/29/12)
I used water the first time I prepared my shake and found it to be acceptable but nothing to right home about. The 2nd time round I used Fat Free Milk and that made all the difference. I enjoy my shakes thoroughly and find it to be very filling.
It is a great meal replacement product!
fills you up for longer!!!
Review by Mariska(Date 1/6/12)
other meal replacements fill you up for at least half an hour. with Diet Fuel Ultralean gives you the full feeling for about 3-4 hours. its divine with skim milk but not so bad with water either... preferably ice cold!

this is my one step closer to a leaner ME!
fat loss
Review by ziyaad(Date 10/17/11)
i found the product to really work for me i have been using this product for 5 months and found it to be very effective
Good for its price
Review by Daniel(Date 8/28/11)
USN Diet Fuel is a good product for its price. The things which make is not as effective as it could be are the fillers that are in it. I followed a strict eating regime as well as worked out a lot and did a lot of cardio while on it and I got better results from just drinking a 100% pure Whey protein then from drinking diet fuel as a meal replacement. The vanilla flavour tasted good and for its price it is good if you are looking for a meal replacement but I recommend lots of gym, cardio, a healthy diet and a pure whey protein rather than using this product.
has assisted me in weight loss
Review by candz(Date 7/12/11)
i started this product a month ago, and there is definite change in my weight. i have lost alot of fat. i also follow a strict gym schedule. i think it has assisted me in losing weight.
Just go for it
Review by Jaco(Date 4/19/11)
It doesnt taste thate nice but rather drink it with milk as a shake rather than using water. You get use to the taste and just tell yourself it will help you lose weight, it works
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