87 is a good reading. It's in the optimal range and will protect from cancers.

Dr. Holick a premier D3 expert in Boston, and me based on his behavior, likes to keep his vitamin D3 levels around 125.

I've had readings as high as 300 with no adverse results proved by an ultrasound order by my doctor on my soft tissues to prove my levels were dangerous. Tests came back with no damage.

Like I said I try to keep my readings around 125 but have no worries, except to reduce for a while is my reading gets above 200.

But that's just me.

I take D3, K2, magnesium, vitamin A, and a little calcium all together.

D3 and Vit. A should be balanced. K2 makes sure vitamin D3 is deposited where needed and not in soft tissue; magnesium is essential and works synergistically with D3; and calcium allows D3 to deposit calcium in the bones and not leach it from the bones because you didn't take enough.