“Flaxseeds are an excellent source of dietary fiber, protein, and omega-3 fatty acids—helping to lower inflammation, LDL or 'bad’ cholesterol, and blood sugar,” Kelsey Costa, M.S., R.D.N., says.

“Studies have found that daily flaxseed supplementation can reduce C-reactive protein and balance pro- and anti-inflammatory molecules, contributing to healthy aging and providing an overall anti-inflammatory effect,” she says, noting that they're best absorbed when ground.