Vitamin C

There is no vitamin C posture rule. The advice was written in 1986 about four other drugs. Here is where it came from and the part worth keeping.

Liposomal vitamin C absorbs better than regular vitamin C in nine of ten trials. What the evidence supports, what it does not, and the dose where it matters.

What is the best vitamin C supplement in Canada? There isn't one — but five checks narrow it fast, starting with the eight-digit NPN on the label.

Most side effects blamed on vitamin C tablets are really the dose. A few belong to the tablet itself — swallowing, enamel, sodium, fillers and absorption.

What is better than vitamin C? Nothing replaces it — but some forms beat others at specific jobs. What the evidence says on liposomal, buffered and Ester-C.

What cancels out vitamin C? Nothing does — but copper, iron, heat and rising pH all degrade it, and only the last step is permanent. Here's the chemistry.

What drink is high in vitamin C? Fresh orange juice leads everyday drinks, but many juices rank high because vitamin C was added. Here's how to tell.

What is the best vitamin C supplement to take? For most healthy adults, a tested plain ascorbic acid. See when buffered, liposomal or corn-free fits better.

Vitamin C forms compared: the best one depends on your dose. What the evidence shows for ascorbic acid, buffered, Ester-C and liposomal, and who paid for it.

Is Ester-C better than regular vitamin C? Gentler on sensitive stomachs, yes. Better absorbed, only inconsistently. What the trials show, and who paid for them.

Liposomal vitamin C vs regular vitamin C: 9 of 10 trials found better absorption, but no trial has yet shown a clear health benefit. See when it's worth it.

Nearly all commercial ascorbic acid begins as corn. What that means if you react to corn, and how to actually verify a corn-free vitamin C claim.