Beets are rich in dietary nitrates, which the body can convert into nitric oxide (NO), as per Dr William Li. NO helps dilate (relax) blood vessels, improving blood flow and reducing shear stress on artery walls. Some experimental studies published in NIH suggest this pathway can help reduce small endothelial injury over time.
How to include: Use a small raw-beet + greens smoothie (with lemon, ginger), or roast beets, toss with a bit of olive oil and herbs, and pair with greens.