Protein shake vs plant protein powder for acne
Protein shake scores 70/100 (GOOD) and plant protein powder scores 100/100 (GLOW) on SpotBite's Skin Score. Plant protein powder is the safer choice by 30 points, and the gap comes mostly from dairy.
Where the gap comes from
- Dairy: Protein shake has 350 g of dairy, Plant protein powder has 0 g. Milk proteins can act like growth signals in the skin.
- Skin boost: Protein shake gets +0 from omega-3 and polyphenols, Plant protein powder gets +5.8.
Evidence: Hoppe 2004 (n=24): 1.5 L of skim milk a day raised IGF-1 by 19% within 7 days (study). All 13 sources.
Score breakdown, side by side
| Protein shake | Plant protein powder | |
|---|---|---|
| Glycemic (of 50) | GL 1.5 −2.7 | GL 0.6 −1.1 |
| Dairy (of 25) | 350 g −25 | 0 g 0 |
| Inflammation (of 25) | 1.5 g sat · 0.1 g ω-6 −2.1 | 0.5 g sat · 0.2 g ω-6 −1.1 |
| Skin Boost (of 25) | 0 g ω-3 · low polyphenols 0 | 0.1 g ω-3 · medium polyphenols +5.8 |
| Skin Score | 70 · GOOD | 100 · GLOW |
Estimates for a typical serving. Real foods vary by brand and recipe.
Verdict
If you are acne-prone, plant protein powder is the better pick of the two. A 30-point gap is the kind of swap that can show up in your skin within a week or two.
Not medical advice. Both scores are for the food on its own. What you eat with it changes the result, and breakouts usually show up 3 to 7 days after a meal. Diet is one factor among many.
See your own pattern
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