Guides
Can You Take Too Many Supplements? Upper Limits & Toxicity
More is not safer — know the ceilings, watch for overlap, and total up everything you take.
Upper Limits
Blog
How Much Vitamin B6 Is Too Much? What the Research Actually Shows
The water-soluble vitamin that breaks the 'you just pee it out' rule.
Guides
Vitamin B6 Explained: Forms, Food Sources, RDA, and the Upper Limit That Matters
The B vitamin in a hundred enzymes, and the one you can actually overdo.
Blog
The 'More Is Better' Supplement Myth
The dose-response curve for most nutrients flattens out long before the label does.