In a 2019 study from Michigan State University, researchers surveyed grass-finished beef from 12 US farms, analyzing fatty acids, minerals, and vitamins. Farms used all-grass diets, leading to an average omega-6 to omega-3 ratio of 4.1, far better than typical grain-fed beef's 20:1 or higher.

In 2025, Rachael Frost and team from Frontiers looked at 209 clinical trials testing 64 over-the-counter products like herbs and supplements for depression in adults. They checked if these helped symptoms more than placebos or matched antidepressants, grouping results by strong evidence (over 10 trials), emerging (2-9), or single studies.

In 2025, Kuan-Hung Lin and team from Taipei Medical University studied 60 adults with frequent alcohol-related headaches. In a 4-week trial, half got 100 mg daily vitamin B1 (thiamine), while others received a placebo. They measured headache frequency, blood flow via ultrasound, and brain cell health through blood markers, adjusting for alcohol intake and age.