• Vitamin D
• Why do I need Vitamin D?
• Vitamin D Deficiency
• Can I Have Too Much Vitamin D?

Can I Have Too Much Vitamin D?

Too much exposure to sunlight does not lead to higher vitamin D levels in the body. However, some studies suggest that the consistent ingestion of quantities greater than 80,000 IU per day may have a harmful effect on the body.

The current upper safe limits set by IOM (Institute of Medicine) for vitamin D consumption for infants is 1,000 IU per day and 2000 IU per day for children and adults, yet this number is likely to increase as further research develops. Current estimate is that the upper limit could be increased to 10,000 IU/ day. For repletion, intakes above the upper limit may however be required and necessary.
 

Related Links - Learn More About Vitamin D

Grassroothshealth/ Vitamin D action

A Consortium of Scientists, Institutions and Individuals Committed to Solving the Worldwide Vitamin D Deficiency Epidemic.

Vitamin D Council

The Vitamin D Council is a group of concerned citizens who believe many humans are needlessly suffering and dying from Vitamin D Deficiency. Their goal is to educate the public and professionals about Vitamin D Deficiency and its numerous associated diseases.

Vitamin D Society

The Vitamin D Society is a Canadian non-profit group organized to: increase awareness of the many health conditions strongly linked to vitamin D deficiency, encourage all Canadians to be proactive in protecting their health and have their vitamin D blood levels tested annually and fund valuable vitamin D research.

UV Foundation

The UV Foundation is committed to funding educational efforts designed to increase the public awareness of the biologic effects of ultraviolet light.