NEW! Test Your Melatonin Levels with SleepCheck!
Trouble sleeping? Worried about declining melatonin levels? Taking melatonin supplements? It may be time to test your levels. This new melatonin test is fast, easy, accurate and reasonably priced.
A Free e-mail newsletter from Virginia Hopkins to keep you up-to-date on what's happening with hormone replacement research, nutrition in the news, and much more!
NEW! Test for Vitamin D
Related Articles
Blood Spot Test Advantages
Blood spot testing is faster, easier, accurate, and can be done in the privacy of your own home, at your convenience.
Sunshine = Vitamin D
Getting a little sun every day, without sunblock, is important to vitamin D production.
Vitamin D - How Much to Take?
The RDA for vitamin D is way too low, but there is some scientific consensus about what's the right dose, depending on how much sunshine you get and where you live.
Vitamin D Research and References
A select list of references on vitamin D if you want to get up to speed on the science and biochemistry of this important vitamin/hormone.
Vitamin D Testing Science and Biochemistry
For health care professionals and science geeks, here's the science and biochemistry of why it's so important to test properly for vitamin D.