With all the information on health how can I know who is accurate?
The best method to verify the autenticity of a scientific news, is to search authorized papers about the subject.
You can find all the published papers on this website: https://www.ncbi.nlm.nih.gov/
Here, and especially on "PubMed" and "PubMed Central (PMC)" (both within ncbi.gov) you can search for a topic and a lot of papers will be shown. Then look for the most recent one, since sometimes newer reviews discover something important.
In your case, this can be a good starting point.