Supplement analysis backed by scientific evidence · PT

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Limited evidenceHeart & metabolic

Apple Polyphenols

Procyanidin-rich extracts from unripe apples, sold for cholesterol, body fat and muscle. Meta-analyses of apple and apple-derived products show small cardiovascular effects, but they pool whole apples and juice with extracts, so the case for the concentrated supplement is weak.

Evidence last reviewed: August 2026

What the science says

  • Cardiovascular risk factors Limited evidence

    A systematic review and meta-analysis of randomized trials found apple or apple polyphenol consumption produced small improvements in some cardiovascular risk factors, notably lipid measures. Most included trials tested whole apples or juice rather than an extract.

  • Metabolic outcomes Limited evidence

    A separate systematic review and meta-analysis of apple and apple-derived products reported modest metabolic benefits with substantial heterogeneity between trials. Fibre in whole apples is a plausible driver, which extracts do not supply.

  • Muscle and exercise effects Limited evidence

    Claims about muscle mass and endurance derive from rodent studies of apple procyanidins and ursolic acid from peel. No adequate human trial supports these effects.

Dosage & safety

Studied doseHuman studies used roughly 300–1500 mg per day of apple polyphenols, or 1–2 whole apples daily. Extract capsules are commonly sold at 300–600 mg.
SafetyGenerally well tolerated; digestive upset is possible at higher doses. Concentrated polyphenols may interact with anticoagulants in theory, and long-term safety of high-dose extracts is not established. Eating whole apples is cheaper and better evidenced.

Scientific references

Where to buy

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