What it does: The fiber and bioactive compounds in fruit skins support digestion by promoting regularity and feeding beneficial gut bacteria, while polyphenols and antioxidants help resist oxidative stress at the cellular level.
How it is used: Ingredients from fresh fruits with skin are commonly included in supplements for digestive wellness, fiber enrichment, and enhanced antioxidant activity, often as fruit powders or concentrates.
Natural sources and supplement forms: Natural sources include the skins of apples, grapes, blueberries, plums, and similar fruits. Supplement forms may include whole-fruit powders, extracts, or concentrates prepared with peels intact.
Why it appears in supplement formulas: Fruit skins are valued in supplements for boosting fiber content and supplying a broader range of plant antioxidants than from fruit flesh alone, supporting both digestion and cellular defense.
What to know before use: Those sensitive to high fiber or with fruit allergies should start low and select products from trusted sources to reduce risk of reactions or pesticide residues.
Interesting Fact
Fruit Skins: A Natural Source of Fiber and Plant Compounds
Eating fresh fruits with the skin provides not just vitamins and minerals, but also natural fiber and phytonutrients that are most concentrated in or near the peel. For example, apple and grape skins are rich in antioxidants like polyphenols. Including fruit skins in supplements supports a broader spectrum of nutrients than fruit flesh alone, capturing benefits found in nature’s original packaging.
