question for anyone.. My b12 level was 249 they told me to take 1000 vit a day. I see that that is way to low of a dose.. I have also been taking it with food. so my question is. I have a friend that has a powder from Kirkmans that is the methylcobalamin that her kids take it is 5000 does.. has anyone heard of this and will this work?? or should I see if Kirkman's has a pill form.