Grape

Studies in people

• Benefit

  Heart and blood vessel health³

  Eating grapes and grape products may help blood flow and cholesterol, but scientists do not yet know enough to give advice.

Found in some samples or products

These come from where it was grown, how it was processed or cooked, or what it was made into. They are not about the ingredient itself, so the signal does not count them.

• Mixed residues persist after processing⁵

  Grapes often carry several pesticides at once, and washing or fermenting them does not remove all of it.

• Gut bacteria and health⁶

  Pesticides used on grapes can build up in the body over time and may affect gut bacteria.

How it’s made and used

• How the body absorbs polyphenols⁴

  In people, grape polyphenols built up more in the blood of lean people than in heavier people after ten days.

The signal at the top counts the findings in people and in animal and lab studies. A concern in studies of people outranks animal and lab studies, and “No concerns” needs at least one finding in people. When most findings in people point one way, the page leans that way (“Mostly”), and every finding is still shown. Findings whose study type is not stated are shown but not counted. This page is a reference, not medical advice. It describes what regulators and published research say. Talk to a doctor or dietitian about your own diet.