Written By Michael Greger M.D. FACLM • June 30, 2026
Last updated: June 1, 2026 • 3 min read

What happens within hours of eating a high-fat meal?
We are only as old as our arteries. What can we do to preserve arterial function as we age? A poor diet and sedentary behavior can lead to adverse aging processes, like impairment of the little power plants in our cells, which can result in free radical formation, oxidative stress, and inflammation, which lead to the artery dysfunction that can end in cardiovascular disease that ends us.
In a series of videos I did about a decade ago, I discussed landmark research showing that a single high-fat meal could cripple artery function within hours of consumption, compared to no change with a low-fat meal, as you can see below and at 1:04 in my video Saturated Fat Causes Artery and Lung Inflammation.
Rest of the article:
https://nutritionfacts.org/blog/how-a-single-meal-can-cripple-your-arteries-and-lungs/