Comment by nothinggoesaway

It's a fair and good question.

From "Endothelial Glycocalyx Preservation — Impact of Nutrition and Lifestyle" (2023) [1]:

Vitamin D; omega-3 supplementation; dietary sulfur (onion, garlic, leek, kale, broccoli, cauliflower, cabbage...); intermittent fasting

(edited for formatting)

[1] https://pmc.ncbi.nlm.nih.gov/articles/PMC10255458/