Toggle Health Problems and D

Hypothesis - 40 ng is enough vitamin D if high latitude or dark skin


Recommendations of amount of vitamin D to have generally vary between 30ng/ml and 60 ng/ml

The Institute of Medicine proposed 20 ng/ml in Nov 2010]

Dr. Veith presented an interesting hypothesis in May 2011

Some people (Caucasians?) living in high latitudes (which have a large variation in UV during the year)

get adverse reactions to high (50 ng+) levels of vitamin D for the entire year

It MIGHT be OK to have higher levels during the summer.

The data only hints that having > 50NG/ml all year long might be a problem

CICK HERE to get to reference - PDF and soon audio and video

Humans evolved to have a constant amount of vitamin D

in wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1660

U shaped risk curve only where UV varies a lot with season - Veith

in wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1660

Pancreatic Cancer increases with high levels of vitamin D only where UV varies a lot with season

in wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1660

Prostate Cancer U-shaped curve from Lappe May 2011

Note: this shows having 24 ng/ml all year long increases prostate cancer

see wikipage: http://www.vitamindwiki.com/tiki-index.php?page_id=1659

Concerning people with dark skins

There have been various reports in 2009, 2010, and 2011 which seem to indicate that dark skinned people do not need as much as those with light skins

Unknown so far

  • Does this apply only to dark skinned people living far from the equator

See in VitaminDWiki