no probs. i was taking doses along the lines of 25,000 IU per week, got a smaller syringe so that i could dose out a smaller drop and now i take about 5000IU per dose, every few days. probably not enough if it was winter, but i'm outside a lot. i depleted both zinc and magnesium via diet, (among other important things), got sick, then learned about vit d3, started piling it in, depleted zinc and magnesium further and experienced dangerous, life threatening problems with cognition (zinc) and functionality (magnesium). almost had my drivers' license pulled. and thought i was going to asphyxiate if my throat got stuck again with my airway closed, alone, unable to breathe. wasn't fun. purely nutritional. took quite a while to correct to the current point. if you pick up magnesium, look specifically for magnesium glycinate. most of the common magnesium supplements aren't as soluble as you need and will go right through you. for zinc they say zinc picolinate is best. if you can find a 50mg one that also is balanced with 2mg copper, that should be ideal. for more info do have a read of my 'signature' links. any other questions, feel free
