Most calcium supplements are made from either calcium carbonate or calcium citrate. One study has found that calcium citrate is up to 27% more absorbable than calcium carbonate. Also, the carbonate form requires sufficient stomach acid for proper absorption. Because...
aging
Probiotics boost aging immune system
Elderly people are at increased risk of infection due to the age-related decline in immune system function. In a recent study, scientists looked into how supplementing with probiotics might help improve immunity in the elderly. Probiotics, including Lactobacillus...