Recently blood tests show that i have a low vitamin d level. what can i do to boost that?

Sun and pills: Stay outside about 30 min per day, sun boosts vitamin d. Be careful, i an not recommending sunbathing, that can give you burns etc. Or take vitamin d pills, they are over the counter. Milk is also a good source.

Vitamin D3 & sun!: The best thing to take for low vit. D is vit. D but it's important to take the d3 form as the d2 form is dangerous! most adults need 5-8, 000 iu/day to attain optimal levels, but in spring & summer you can also get it by spending time in the mid-day sun without sunscreen. If you don't get much sun then take d3 year-round.It's best to take 5-10, 000 iu of vit a & 1mg of vit k too-they work together.