Is 50 ng of vitamin D too high, just right, or not enough

Overview of the controversy

• Most experts say 40 ng is good
• Some experts say 50 ng is much better for disease prevention
• Some experts say 50 ng is too much (high latitude, black skin)
• Concern that >40 ng may be too much if taking some chemotherapy and unable to reduce the dose taken
• Some experts feel 50 ng is not enough to TREAT some diseases

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VitaminDWiki has a lot more information

• All items in Vitamin D Blog
• Home Page
• List of categories of vitamin D information - with # of items in each
• Published Recommendations
• Reasons for Vit D deficiency
• Low cost and many forms of vitamin D
• Low cost Vitamin D tests
• Vitamin D 101