Vitamin D sufficiency 10 to 30 ng, optimal 40 to 80 ng (no consensus)– May 2018

The table on this page is from Children need vitamin D - good global overview, poor recommendations for Italian children - May 2018

Optimum category starts with

80 items in Optimum Vitamin D category

Example studies

• Is 50 ng of vitamin D too high, just right, or not enough
• Saudi study defines normal Vitamin D level to be 50 to 70 ng (diabetes, etc.) - June 2020
• French uncertain as to acceptable vitamin D levels: 11, 20, 30, 46 ng ( 80 percent less than 30 ng) - Oct 2013
• Need 40 to 60 ng of Vitamin D – 48 scientists call for action – 2015
• Vitamin D RDA of 600 IU is not enough - global RCT meta-analysis March 2019
• Vitamin D sufficiency 10 to 30 ng, optimal 40 to 80 ng (no consensus)– May 2018
• More than 30 ng of vitamin D is sometimes needed (Kidney needs 50 ng) – March 2019
• Need at least 80 ng of vitamin D if have chronic kidney disease – May 2012
• Vitamin D sufficiency 10 to 30 ng, optimal 40 to 80 ng (no consensus)– May 2018
• Sports benefits from up to 50 ng of Vitamin – meta-analysis - Nov 2012
• Vitamin D of 32 to 60 ng is needed before, during, and after pregnancy – Dec 2012

Table 2 Definition of vitamin D status according to several Societies and Organizations in the last 10 years