... vitamin B2, vitamin B6, vitamin B12 vitamin C, folate, iron, zinc, selenium[The main efficacy]:supplementation of vitamins (β-carotene, vitamin B1 ... B2, vitamin B6, vitamin B12 vitamin C, folic acid) iron, zinc, selenium,[Features]:1, raw materials and ingredients of pure plant ... immunity,[Appropriate crowd]:1, need supplementation of vitamins and iron, zinc, selenium in children aged 4 to 17,2, and ...