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Thong tin nay chi mang tinh giao duc. Khong phai loi khuyen y te. Luon tham kham bac si chuyen khoa.
Khoang mot ty nguoi thieu vitamin D. Ban co thuc su can bo sung khong?
Vitamin D da tro thanh mot trong nhung chat dinh duong duoc ban luan nhieu nhat. Tu suc khoe xuong den mien dich — nhung tuyen bo ve loi ich cua no o khap noi. Nhung khoa hoc thuc su noi gi?
Dang hoat dong (calcitriol) dieu hoa hap thu canxi va phospho, khoang hoa xuong va chuc nang mien dich. Co the san xuat vitamin D khi tiep xuc anh sang UVB. Nguoi song tren vi do 35 do (hau het Chau Au), nguoi da sam, nguoi beo phi, nguoi lon tuoi va nguoi it tiep xuc anh nang co nguy co cao.
Cholecalciferol (D3) duoc uu tien hon ergocalciferol (D2). Lieu chuan: 600–1000 IU/ngay cho nguoi lon, 1000–2000 IU cho nguoi co nguy co thieu hut. Gioi han tren dung nap: 4000 IU/ngay. Lieu >10.000 IU/ngay co nguy co tang canxi mau va soi than.
Hoi bac si khi dau xuong, yeu co hoac gay xuong thuong xuyen. Khong tu y bo sung lieu cao khong xet nghiem — xet nghiem mau don gian se chi ra lieu bo sung co can thiet hay khong.
Bai viet nay chi mang tinh giao duc. Khong phai loi khuyen y te. Luon tham kham bac si.
Dr. Mark Richter is a board-certified internal medicine physician with a focus on preventive care and chronic disease management. He contributes evidence-based health content to help readers make informed decisions about their wellbeing.
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