Depends upon where you live...from what I understand you need to be in southern parts of US (closer to equator is best) Where I live, not so much. Have you ever had your D3 levels tested? That would help and is recommended. Want it to be 50-70.
Yes, the last two times I’ve had my levels checked they were within normal limits. I’m in GA, I spend most of the day outside (garden/farm/swimming), I’m not constantly in the sun but I’m sure I get at least an hour or two.