US Preventive Services Task Force Recommends Against Multivitamins
An updated review of the evidence reinforces that routine vitamin use is mostly worthless.
Vitamins are not for vaping
Vaping vitamins is a bad idea.
The Natural Medicine Handbook
Dr. Walt Larimore has written a very mixed bag of a book, combining useful general advice about supplements and "natural medicine" with some questionable specifics about individual products.
“DNA-based” personalized nutrition advice: Not ready for prime time
There are countless vendors offering "personalized" nutrition recommendations, some based on DNA- or microbiome-testing. What does the evidence actually say?
Do dietary supplements affect the survival of cancer patients?
Do dietary supplements offer advantages or risks to breast cancer patients undergoing chemotherapy?
Juice Plus+: Good Marketing, Not Good Science
Juice Plus+ is a multilevel marketing company selling fruits and vegetables that they have reduced to a powder and put into capsules. It's clever marketing using deceptive advertising. There is no scientific evidence that it benefits health.
Routine Vitamin Supplementation Mostly Useless
A new meta-analysis shows no benefit from multivitamins or routine supplementation. These results should motivate users to take a fresh look at their supplementation.
Puritan’s Pride Vitamin Advisor Gives Questionable Advice
The Puritan’s Pride website has a Vitamin Advisor that claims to provide a personalized supplement plan, with expert recommendations chosen just for you. In my opinion it is deceptive, designed not to provide evidence-based personalized health advice, but to sell their products; and one can only wonder what kind of “experts” would support such ill-advised recommendations. Stephen Barrett and I have just...
Vitamins and Cancer Risk
Vitamins have been promoted as a general panacea, as well as a means of preventing cancer. In reality, high doses of vitamins may even cause cancer.