Vitamin D3 4000iu & Vitamin K2 100ug MK7 x 180 - 400 Vegetarian Tablets. ✔ 𝗠𝗔𝗫𝗜𝗠𝗨𝗠 𝗗𝗢𝗦𝗘 - Vitamin D is commonly known as the ‘sunshine vitamin’, important for immune system function. YouNutri’s adult D3 are MAX strength safe dose 4000iu (as per NHS guidelines).