Vitamin D pill meets new UK guidelines (400 IU)
New vitamin D supplement meets PHE guidelines

Note: Only Korea recommends a smaller dose size - 200 IU
Note some countries limit their maximum pill size to 1,000 IU (Germany, New Zealand)
See also VitaminDWiki
Amazon-US has 2,500 listings for 5,000 IU - Dec 2016
Amazon -US has 183 listings for 50,000 IU - Dec 2016
Intervention - Vitamin D Of the 330 trials only 4 found success with 400 IU vitamin D (Dec 2016)
- 100+ Randomized Controlled Trials have proven that 400 IU does not help dozens of health problems
3X increase in UK children who are vitamin D deficient in just 5 years – Nov 2015
UK proposes that 10 ng level and 400 IU is enough Vitamin D for everybody (no and no)- July 2015
NHS (UK) mistakenly says more than 1000 IU of vitamin D can be harmful – Dec 2013
One pill every two weeks gives you all the vitamin D most adults need approximately 3,600 IU daily
One UK seller provides 1,000 IU, 5,000 IU, 10,000 IU and 50,000 IU