Here you will find reviews and best-of guides for immune supplements, plus explainers on the nutrients the immune system relies on.We compare doses with daily intake guidelines and human research, flag doses that go above safe upper limits, and check refund terms and complaints.Ask your doctor before use if you have an autoimmune condition, take immune suppressing drugs, or are pregnant.Does echinacea help prevent or shorten colds?The evidence is mixed. NCCIH notes that some studies suggest echinacea might slightly lower the chance of catching a cold, but results are inconsistent, and products differ widely in which plant parts and species they use. It can cause allergic reactions in some people. Handwashing, sleep, and recommended vaccines remain the best supported ways to stay well.Source: Echinacea, NCCIH
Vitamin D helps your body absorb calcium and keep bones strong, and that is where its benefits are best proven. Most people age 1 to 70 need 600 IU (15 mcg) a day and adults over 70 need 800 IU. A blood level of 20 ng/mL is enough for most people. Large trials of 2,000 IU a day found no drop in cancer, heart events or fractures.
Read the label first. Then decide.
Slow, plain-language supplement reviews. We read the label, compare each dose with the research and work out the real cost. Edited by Maya Ellison.
The Well Brew is general information, not medical advice. Dietary supplements are not reviewed by the FDA for safety or effectiveness before they are sold. Talk to your doctor before you start, stop or combine supplements. Some links are affiliate links: if you buy through them we may earn a commission at no extra cost to you, and it never changes what we report.