Vitamin D in Ireland – 400 IU for child, more than 3,200 IU by prescription only
The Safety of Vitamins and Minerals in Food Supplements – Establishing Tolerable Upper Intake Levels and a Risk Assessment Approach for Products Marketed in Ireland
Report of the Scientific Committee of the Food Safety Authority of Ireland
Download the PDF from VitaminDWiki
Note that Irish children only get 132 IU of Vitamin D (mean)

Note that the Upper Limit of Magnesium is 250 mg in Ireland, yet 450 mg is the recommended amount in most countries

No mention of Omega-3 nor Vitamin K
See also VitaminDWiki
Vitamin D - at least 4,000 IU to achieve 40-60 ng and reduce risk of early death – Holick June 2018
- But Ireland restricts >3,200 IU to being by prescription only
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- Includes errors in EFSA and SACN calculations for Vitamin D
Search for Cashman in VitaminDWiki 643 hits as of June 2018 He is a Vitamin D researcher in Ireland
1,100 IU Vitamin D needed to get most to 20 ng (look at individual not summary data) – April 2018