Как употребление кофе чаще всего влияет на кровь.

Researchers measured blood before and after drinking regular store coffee in several people. They found that 20–30 minutes after consumption, the blood became thicker and less fluid for most coffee types, including granulated, loose, and even premium ground coffee. However, one particular coffee type noticeably thinned the blood. This suggests that certain coffee varieties might improve blood properties, possibly depending on the bean type or roast level. The study also notes that caffeine can hinder iron absorption, so individuals with iron deficiency or a tendency toward it should avoid drinking coffee with iron‑rich foods. Additionally, coffee may worsen anxiety, nervousness, and sleep quality, so people should monitor their well‑being. The researchers hope to identify safe products that can help “unclump” red blood cells and enhance blood characteristics.