“ Vitamin D is needed for absorption of calcium so that the mineral can take its place in bone and shore up the skeleton against fractures, ” explains the Tufts University Health & Nutrition Letter. “ Generally speaking, 90 percent of our vitamin D is made in our skin upon exposure to sunlight.
„ D - vitamiini läheb vaja kaltsiumi omastamisel, nii et see mineraal saaks ladestuda luudesse ja kaitsta neid murdude eest, ” selgitab trükis „Tufts University Health & Nutrition Letter ”.„ 90 protsenti D - vitamiinist moodustub nahas päikesevalguse toimel.