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Myprotein Impact Whey Protein vs Vitabiotics Wellman Original

The published reviews of Myprotein Impact Whey Protein and Vitabiotics Wellman Original, lined up: the five scores, what one serving delivers against the studied dose, the real cost per serving and what each label leaves out. Figures as of 28 September 2026.

The short answer

Myprotein Impact Whey Protein scores 7.6/10 against Vitabiotics Wellman Original's 5.4. The widest gap is evidence for the marketed claim: 8 for Myprotein Impact Whey Protein, 4 for Vitabiotics Wellman Original.

Pick Myprotein Impact Whey Protein if…

  • you want the stronger evidence behind what it is sold to do
  • you want a serving that matches the amount used in research
  • you want a product with a third-party certification

Pick Vitabiotics Wellman Original if…

It does not lead on any criterion we score. Read its review for the case in its favour.

Criterion by criterion

The five criteria every review is scored on, published on the grading page. The overall score is their average.

Evidence for the marketed claim

How strong the research is for what the product is actually sold to do — not for the ingredient in general.

Myprotein Impact Whey Protein8/10Leads
Vitabiotics Wellman Original4/10

Dose against the studied amount

Whether one serving delivers the amount used in the research behind the claim.

Myprotein Impact Whey Protein8/10Leads
Vitabiotics Wellman Original5/10

Label transparency

Whether the Supplement Facts panel is published in readable text and every active amount is disclosed.

Myprotein Impact Whey Protein6/10Leads
Vitabiotics Wellman Original5/10

Value against the generic equivalent

Cost per gram or per dose of the active ingredient, compared with the plainest version of the same thing.

Myprotein Impact Whey Protein9/10Leads
Vitabiotics Wellman Original7/10

Safety and tolerability

Known risks and interactions, how well characterised they are, and whether the label warns about them.

Myprotein Impact Whey Protein7/10Leads
Vitabiotics Wellman Original6/10

Dose against the studied amount

What one labelled serving delivers, placed against the range on each ingredient’s evidence page. Where a label gives no figure, there is nothing to place, and that is the finding.

Whey protein blendEvidence A

Where muscle protein synthesis maxes out: 20–25 g a dose

  • Myprotein Impact Whey Protein22 g protein per 30 g serving (vanilla, Original)In range
  • Vitabiotics Wellman OriginalNot in the formula

Vitamin DEvidence A

NHS daily amount to adult upper limit: 10–100 mcg a day

  • Myprotein Impact Whey ProteinNot in the formula
  • Vitabiotics Wellman Original10 µg on current UK listings (5 µg on older ones)In range

Folic acidEvidence A

USPSTF recommended range: 400–800 mcg a day

  • Myprotein Impact Whey ProteinNot in the formula
  • Vitabiotics Wellman OriginalB6 9 mg, B12 9 µg, folic acid 400 µg, thiamin 12 mg and others

What it actually costs

Price divided by labelled servings, from a dated listing. A serving is whatever the label calls one, which is why the studied-dose row matters more than the headline figure.

  • Myprotein Impact Whey Protein£1.10 a serving · £32.99 for 30 servings at Myprotein, checked 22 Sept 2026
  • Vitabiotics Wellman OriginalAbout £4.29–£7.00 for 30 tablets at UK retailers in listings read on 28 September 2026 — roughly 14p–23p a day. No per-serving figure: servings not recorded.

Label checks

What each label discloses, and what it leaves out. Read from the reviews, not from the marketing.

Myprotein Impact Whey Protein

  • Every active ingredient has a stated amount
  • Carries a third-party certification

Vitabiotics Wellman Original

  • Every active ingredient has a stated amount
  • No third-party certification

How this comparison is built

  • Scores are the ones already published in each review. Nothing is re-scored for the comparison, and a product leads a criterion only when it outscores the rest.
  • Doses are read from the label rows in each review and placed against the studied range on the matching ingredient page. A figure that is not printed is never estimated.
  • Costs use a dated retailer price divided by labelled servings. Prices in different currencies are never ranked against each other.
  • Only products in the same category, or ones a review names as an alternative, can be compared. Commission never changes what appears here.

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