There are many current fads and trends about foods, toxins, cleanses, supplements, and vitamins which are confusing at best. Additionally, some doctors are not as knowledge about these topics as might be helpful. That being said, supplements and vitamins can be very dangerous at times. Most popular nutritional gurus (even some physician tv personalities) routinely are not only mistaken but flat out deliberately sell unproven products. A simple way of checking for the validity of their claims, is to read the disclaimers. Hint, there are no disclaimers on FDA approved medications. Rather, there are lists of potential side-effects but the medications have demonstrated some efficacy in treating the subject medical condition. Such is NOT the case with supplements and vitamins. This is not to say that taking a daily multi-vitamin isn't helpful or even reasonable.
Another point of confusion is the use of USP certification. What that means is that the product has been manufactured properly and contains a reliable bio-available quantity and quality of the substance being sold - nothing more.
Anectdotal testimonials are no more scientifically reliable or believable than 100 year-old Aunt Sophie's statement that her longevity is a result of her having smoked a Tiparillo and drunk 3 fingers of Tennessee mash whiskey after dinner each night since she had her first child. By the way, beautiful actresses' or virile appearing actors' and athletes' opinions rate no better than Aunt Sophie's. It is important to remember that all (with the possible exception of Aunt Sophie) are being paid generously for their testimonials and allegations. The same might be said for commercials by large pharmaceuticals on public media. That practice should be stopped as well.
Snake oil sales has become increasingly sophisticated in our hi-tech world. The recent spread of advocacies for "cleanses" is based on myth and has NO SCIENTIFIC BASIS. There are no reliable before and after lab tests that demonstrate the presence and subsequent absence of "toxins" connected with proposed cleanses. Instead, people regularly hide behind "the wisdom and enlightened awareness" of indigenous people across the world stemming from millennia of experience - in other words, non Western Medicine. Need I remind you that thanks to modern Western medicine, our life expectancy has increased by many decades in the past 50 years?
This afternoon, National Public Radio aired an edition of "On The Media" that covered this topic. I encourage one and all to listen to a pod cast of the program.
I wish all a new year of health and peace.