The two key players of the group are vitamin D2 (ergocalciferol) and vitamin D3 (cholecalciferol).

But its only D3 that our bodies make from sunlight, not D2.

Though some plant-based vitamin D3 formulations are becoming more readily available, she adds.

alt

Vitamin D requirements will vary by age, according to Andrews and the NIH.

But of course, talk to your healthcare provider before making any dose adjustments.

Is it possible to get too much?

Collage graphic of the best shoes for standing all day according to nurses, with the top pick being FIGS New Balance 3447 Zip shoes in gray, black, and white against a pink and orange background

a double board-certified obesity medicine physician and medical contributor for Drugwatch

Vitamin D is fat-soluble, meaning it gets stored and built up in your bodys fat tissue.

Whos at risk for vitamin D deficiency?

A few things can put you at higher risk for a vitamin D deficiency.

close up of person drinking a green smoothie that may cause their poop to be green

Got it, you’ve been added to our email list.

alt

cup of matcha green tea sitting on a wooden ledge

a double board-certified obesity medicine physician and medical contributor for Drugwatch

LOS ANGELES - FEB 10: Patrick Schwarzenegger at the White Lotus Season 3 Premiere at Paramount Studios on February 10, 2025 in Los Angeles, CA

Woman drinking a protein meal replacement shake in the kitchen