10 Immunity Boosters to Stock This Season

“Immune boosting” is a phrase that should make you suspicious, because a boosted immune system is what an autoimmune disease is. What people mean is immune support, and the honest version of that list is short.
What has evidence behind it
Vitamin D, in people who are deficient. Zinc, started within twenty-four hours of a cold’s first symptom, shortening it by about a day. Sleep, which is not sold in a bottle and outperforms everything that is.
What has some
Elderberry and echinacea both have studies, both have mixed ones, and neither will hurt you. If you find them useful, the evidence is not strong enough to argue with you.
What is marketing
Mega-dose vitamin C. Colloidal silver, which is not merely useless. Anything described as detoxifying, which is a claim about an organ you already have.
The one that matters most
The flu shot. It is free or nearly free, it takes ten minutes, and it does more than the other nine combined.



