Reported by Nutraingredients
Many organizations want 2X more
4,000 IU of Vitamin D is OK - 19 organizations agree - 2018 has the folllowing
US
Institute of Medicine
Endocrine Society, Vitamin D Council
American Academy of Pediatrics (AAP)
American Academy of Dev. Medicine and Dentistry
Europe
Scientific Advisory Committee on Nutrition (UK)
European Food Safety Authority
Central Europe consensus
Italian Endocrinologists, Italian Consensus
Nutrition - French Society of Paediatrics
European Society for Paediatric Gastroenterology ....
European Society for Clinical and Economic Aspects of Osteo...
The Nordic Council of Ministers
Health Council of the Netherlands
Toxicity (when also taking cofactors) appears to be 50X higher
Overview Toxicity of vitamin D has the following chart
Without cofactors, the toxicity level is 6X higher (12,000 IU)