In a 136-person randomized trial, 20 grams a day of the prebiotic fiber inulin cut knee osteoarthritis pain about as much as digital physiotherapy, and also improved grip strength and pain sensitivity.
A randomized trial of 2 grams of DHA a day in 365 older adults at risk of Alzheimer's found the omega-3 reached the brain but did not improve cognition or slow hippocampal shrinkage over two years.
A 53-person controlled-feeding trial found eight weeks of a provided Mediterranean diet improved lipids but not C-reactive protein. Inflammation fell only after twice-weekly fasting days brought weight loss.
A 493-person randomized trial at the University of Liverpool found adults drinking diet beverages lost as much weight over 104 weeks as those drinking water. The American Beverage Association funded it.
