FoodsComparisons

Muffin vs granola bar for acne

By SpotBite · Sources: 13 studies · one typical serving of each, on its own · Updated 2026-09-16

Muffin scores 49/100 (WARN) and granola bar scores 78/100 (GOOD) on SpotBite's Skin Score. Granola bar is the safer choice by 29 points, and the gap comes mostly from glycemic load.

Muffin 49 WARN

Muffin

one serving · 113 g

Granola bar 78 GOOD

Granola bar

one serving · 35 g

Where the gap comes from

Evidence: Smith 2007 RCT (n=43): a low-glycemic-load diet for 12 weeks lowered acne lesion count by 23.5 on average, versus 12 on the control diet (study). All 13 sources.

Score breakdown, side by side

MuffinGranola bar
Glycemic (of 50)GL 36.4
−41.8
GL 13.2
−23
Dairy (of 25)0 g
0
0 g
0
Inflammation (of 25)3.5 g sat · 2.1 g ω-6
−9.7
1.5 g sat · 1.2 g ω-6
−4.9
Skin Boost (of 25)0.1 g ω-3 · low polyphenols
+0.8
0.1 g ω-3 · medium polyphenols
+5.8
Skin Score49 · WARN78 · GOOD

Estimates for a typical serving. Real foods vary by brand and recipe.

Verdict

If you are acne-prone, granola bar is the better pick of the two. A 29-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

Scan what you actually eat and SpotBite shows which foods line up with your breakouts a few days later. Free on iPhone and Android.

Get SpotBite More on muffin · More on granola bar

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