outcome

adults

Meta-analysisStrong evidence

The Fiber Supplement That Actually Moved LDL in 41 Clinical Trials

A 2025 meta-analysis of 41 randomized trials found psyllium modestly lowered LDL and total cholesterol, with no clear effect on triglycerides or HDL.

Meta-analysisStrong evidence

Ashwagandha for stress looks promising — but it’s not an instant calm button

People usually want to know whether ashwagandha meaningfully helps everyday stress, how fast it works, and whether the hype around cortisol is backed by actual trials.