I like to keep up with ConsumerLab reviews for the latest information that includes 'specific products'. As a pharmacologist with lots of regulatory experience, I still like to do my own research before interpreting results and drawing conclusions about product categories, but your reviews are a good starting place. I often refer friends there when they ask me for advice about their medical problems and treatments. While I don't always agree with the rather conservative conclusions and over influence of the most recent scary headline from the mainstream, I know that at least this advice won't get anyone into medical trouble.