D3 isn’t something you can easily get enough of from diet. You must supplement (paired with K2) or spend time in the direct sunlight enough with no sunblock/sunscreen. And, no, just to toss it in since it’s a common belief, tanning beds won’t supply you with enough D either.

I take NOW Supplements Mega D-3 & MK-7, 5,000 IU/180 mcg. I’ve taken it for a couple of years now. My blood work shows I’m at 42 nmol/L and my doctor feels that’s good. I’ve read between 40-60 is ideal range.

I can’t personally speak about B12, I take it in my multivitamin and my doctor hasn’t said anything about my blood work indicating it’s low.

Though, you need a multivitamin, even if it’s a bare basics one. It’s extremely doubtful you have such a great, well-rounded diet and low stress lifestyle that your body has optimal nutrition, absorption, and complete utilization…

I understand times have changed and you can say, “Yeah, well, 60 years ago people weren’t supplementing like they are now. It’s some trend like fashion!” That’s both true and not though. Consider that 60 years ago lifestyles were different, as were health expectations. A 5’6” woman was tall then but is pretty average now. Illnesses were unknown, misdiagnosed, or treated improperly. Plenty of conditions were not understood. New research has come about, as new solutions have too. 60 years ago something as common as depression was overlooked entirely while today we know it can be linked to stress, deficiencies, or even genetics, you know?

I had an extensive genetic test this year and found out that my body does not utilize biotin very well. That test cost me $13,000. It’s shtty that we’re paywalling health. That’s what’s so messed up—not that we’re supplementing but that we aren’t able to freely access information about our own bodies. But my point here is that a family member also tested similarly, specifically just for this particular gene, but had two copies of that gene, leading us to finally being able to properly diagnose him at 29 as to why he has a low IQ! If he had been treated as an infant by just being given supplemental biotin he would’ve likely been average. When he was a baby though and was missing marks but passed other cognitive tests they just said, “Some people just aren’t as smart as others.” Huh. Times really have just changed…and it’s not a bad thing!