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Diet Fuel Ultralean 1kg
By USN
USN Diet Fuel Ultralean is a protein shake designed for weight management — a lean, meal-style shake rather than a mass-building one. This is the 1kg tub, available in Chocolate or Strawberry.USN...
— On the shelf
Diet Fuel Ultralean is USN's long-running lean shake — protein with a meal-replacement lean, built for people managing weight rather than chasing mass. The 1kg tub is the low-commitment way in, with Chocolate and Strawberry covering the basics. USN has been a fixture in UK gyms for two decades; not an anchor brand for us, but one with a genuine track record in this exact category. Honest positioning matters here: this is not a bulking shake, and it does not pretend to be. Suits anyone training while keeping calories in check.
— Details
What you need to know.
How to use
Mix with water for the leanest version, or milk if calories allow. It works as a between-meals protein top-up or, per the label, as a meal replacement — follow the label for the full serving if using it that way. It supports a calorie deficit; it does not create one.
Shipping & returns
Free UK shipping over £45 · £6 flat under · 30-day returns · 2pm cutoff for next-day dispatch.
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— Stacks
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- Free UK shipping over £45
- 2pm cutoff for next-day dispatch
- 30-day returns