Another multi-year study of more than 81,000 people has concluded that eating red meat protein, even if it’s just a small portion of the overall diet, significantly increases the risk of heart disease. However, folks who consumed their protein from nuts and seeds reduced their risk of heart disease and helped their hearts stay healthier, longer.

Business Insider:

The multiyear study, published this week in the International Journal of Epidemiology, looked at more than 81,000 Seventh-day Adventists in the US and Canada, a group that is about evenly split between vegetarians and meat-eaters. From 2002 to 2007, participants were asked about what kinds of food they were eating on a regular basis, including how much meat, nuts, grains, and veggies were on their plates. During that time, more than 2,000 adults in the study died, and the scientists took a close look at both how they died and what they ate.

They found a disturbing link between eating even small amounts of red meat and heart problems.

“It’s just another perspective on things that we kind of already knew,” the study’s lead author, Gary Fraser, a public-health professor at Loma Linda University, told Business Insider. “Red meats are bad guys for heart disease.”