Children don't need supplements, they need a nutritious diet! I wouldn't give vitamin supplements even to a fussy eater. Surely, with a little patience and healthy discussion, one could convince the 'fussy eater' to eat some real food. When I was a child, we had no choice but to eat everything on our plates. Fussy eaters? I'm not having it.
Moreover, several studies have found that vitamin supplements are nothing but a load of rubbish. Have you ever noticed that after you've taken a vitamin tablet your urine is fluorescent yellow? Well that's your body telling you it doesn't need the supplements. I read somewhere that only pregnant women benefit from taking folate supplements. The companies behind these supplements are making an absolute killing by exploiting our sense of fear.
Check out the link below:
http://yoconda.co.uk/stick-to-fruit-and-veg-vitamin-pills-rubbish-overpriced-and-harmful-say-scientists/