Quick answer
Beef protein isolate is protein extracted from beef, hydrolysed and filtered into a near fat-free powder with no milk protein in it. NXT Beef Isolate has 90g of protein per 100g and costs 74p per 25g of protein in the 1.8kg tub at £47.99 on Amazon UK, checked 2 October 2026, which is cheaper per gram of protein than most whey isolates. WheyWise read the labels on each brand's own site, and the one study comparing it with whey after training found similar lean mass gains.
Beef protein isolate is a protein powder made from beef instead of milk. It is the dairy-free, fat-free end of the protein shelf: NXT Beef Isolate lists 90g of protein per 100g with 0g of fat, checked on nxtnutrition.com on 3 October 2026.
What is beef protein isolate?
Beef protein isolate is beef protein that has been hydrolysed and filtered until almost nothing but protein is left. Bulk describes its Beef Protein Isolate 97 as hydrolysed beef protein from European beef, made through a refined extraction and filtration process. The result has close to no fat or carbohydrate and contains no milk protein. NXT sells its Beef Isolate in fruit flavours, and the Green Apple ingredients list is beef protein, citric acid, flavouring, sweeteners and colours.
Is beef protein isolate as good as whey?
For building muscle with training, the only head-to-head study found no difference. In Sharp et al., 2018, 41 men and women trained for 8 weeks and took 46g of protein after each session from beef protein isolate, hydrolysed chicken protein or whey concentrate. All three protein groups gained significant lean mass, strength rose with no differences between the groups, and the maltodextrin control group did not gain significant lean mass. It was a small study, about 10 people per group, so treat it as reassurance rather than proof of equality.
How much does beef protein isolate cost?
Beef protein isolate is cheaper per gram of protein than most whey isolate. Bulk Beef Protein Isolate 97 costs 72p per 25g of protein in the 1kg bag at £25.99, and NXT Beef Isolate 74p, against £1.53 for Myprotein Impact Whey Isolate in its 2.7kg bag.
| Product | Protein per 100g | Fat per 100g | Pack and price | Cost per 25g of protein |
|---|---|---|---|---|
| Bulk Beef Protein Isolate 97 (Chocolate) | 90g | 2.5g | 1kg, £25.99 | 72p |
| NXT Beef Isolate | 90g | 0g | 1.8kg, £47.99 | 74p |
| Myprotein Impact Whey Isolate (Vanilla) | 82g | 0.9g | 2.7kg, £135.49 | £1.53 |
Labels read on bulk.com, nxtnutrition.com and myprotein.com on 3 October 2026. Bulk and Myprotein prices checked on their own sites on 3 October 2026, Bulk during a sale; NXT price from Amazon UK, checked 2 October 2026. Despite the “97” in its name, Bulk's label lists 90g of protein per 100g.
0g fat, 90g protein per 100g
NXT Nutrition Beef Isolate
1.8kg bag
A dairy-free isolate with no fat at all, at roughly half the cost per gram of protein of a mainstream whey isolate.
Buy Beef Isolate →See the price on Amazon0g fat, 90g protein per 100g
NXT Nutrition Beef Isolate
1.8kg bagPros
- + 90g of protein per 100g, 27g in a 30g scoop
- + 0g of fat and 0.87g of carbohydrate per 100g on NXT's label
- + 74p per 25g of protein in the 1.8kg tub, checked 2 October 2026
Cons
- – WheyWise has not taste-tested it yet
- – Sweetened with sucralose and steviol glycosides
●Nutrition per scoop · 27g protein in 30g▼
Protein makes up 90%
of this 30g scoop · 109 kcal total
Who should use beef protein isolate?
Beef protein isolate suits people who avoid dairy but still eat meat, and anyone who wants the most protein per scoop with almost no fat. Skip it if you are vegetarian, if you enjoy creamy milkshake-style protein, or if a plant protein already works for you. For more dairy-free options, read the dairy-free protein powder UK guide, and to compare the cheapest isolates by cost per 25g of protein, see the whey isolate price comparison.
Frequently asked questions
Is NXT Beef Protein Isolate any good?
On paper it is one of the leanest protein powders sold in the UK. NXT Beef Isolate lists 90g of protein per 100g, 27g in a 30g scoop, with 0g of fat and 0.87g of carbohydrate per 100g, and NXT markets it as dairy free and zero sugar. It costs 74p per 25g of protein in the 1.8kg tub at £47.99 on Amazon UK, checked 2 October 2026. WheyWise has not taste-tested it.
Is beef protein isolate dairy free?
The protein itself contains no milk, and NXT markets its Beef Isolate as zero dairy. Check the allergen line, though: Bulk's Beef Protein Isolate 97 page says it may contain milk, checked 3 October 2026, so it is not a safe pick for a severe milk allergy.
Does beef protein isolate taste like beef?
It is sold in fruit and dessert flavours rather than savoury ones. NXT lists flavours such as Green Apple, Blue Raspberry and Mojito, and Bulk sells Banana Fudge, Chocolate, Chocolate Peanut and Unflavoured, checked 3 October 2026. WheyWise has not tasted either, so we cannot say how much of a beef note comes through.