CL Answers

Is P-5-P really better than "regular" vitamin B6?

Learn more about pyridoxal-5-phosphate (P-5-P) and vitamin B6.

I started taking red yeast rice and soon after developed insomnia. Could my red yeast rice supplement be the problem?

Does red yeast rice make you tired and cause insomnia? ConsumerLab explores this question and other red yeast rice questions. Learn more at ConsumerLab.com.

Is there a difference between taking vitamin D in the dry form versus the oil capsules? Is one better than the other?

Learn more about how to take vitamin D, the best form to take and the best time of time day to take vitamin D.

My HDL (good) cholesterol level is low. Should I take niacin to raise my HDLs?

Learn more about niacin and find out if it can raise HDL ("good") cholesterol levels.

Are there supplements that can reduce prostate size?

How to reduce prostate size using supplements for benign prostatic hyperplasia (BPH), including beta-sitosterol and saw palmetto.

My doctor warned me that red yeast rice can cause liver damage - is that true?

Can red yeast rice cause liver damage? More information on its effects, including possible danger to the liver and kidneys.

I've read that the best form of vitamin E is d-alpha tocopheryl succinate (it's recommended in the paleo diet, for example), but I don't see that listed on product labels. How can I find it?

Learn more about the different names and types of vitamin E, including d-alpha tocopheryl succinate, natural and synthetic.

I developed a rash soon after starting a probiotic. Is it possible to be allergic to probiotics?

Find out if probiotics can cause allergic reactions, including skin rashes, and why.

Does Carditone work to lower blood pressure?

Carditone information, including safety and side effects, whether Carditone has been shown to work for blood pressure and angina, and more.

What is graviola? Can it really help fight cancer?

Learn more about graviola, if it can really help fight cancer, and its safety.