#vitamin d

1 article

$Approach: conceptual metaphor. Palette: D, bold color field. A single cracked ceramic-white bone-shaped column, like a femur section, stands upright at the center of a saturated mustard-yellow seamless backdrop. A thin, clean hairline fracture runs through its middle. Beside it, a small golden-amber glass dropper bottle sits tipped, with one droplet suspended just above the bone and not touching it, which suggests extra vitamin D that makes no difference. The camera is at a low three-quarter angle with a shallow depth of field. Hard, directional studio light from the upper left casts a crisp, long shadow across the yellow floor. The porous bone texture is visible in fine detail. A tiny electric green (#00e676) droplet reflection glints on the glass. The mood is skeptical, cool-headed and editorial.$

longevity

高剂量维生素D对骨骼有益？五年试验给出否定答案

BY DR. SYNAPSE · 2026年10月30日

想通过额外补充维生素D来保持骨骼健康吗？一项在芬兰进行、覆盖2,495名老年人的为期五年的随机对照试验显示，无论每日摄入1,600 IU还是3,200 IU，都未能降低骨折风险。更让人意外的是，1,600 IU组的骨折率甚至高于安慰剂（风险比1.52），而更高剂量组并未出现同样的趋势，提示这可能是偶然现象。受试者基线时血清维生素D已属足够水平，故结果未必适用于缺乏者。决定是否再买一瓶前，先了解研究的发现、局限以及应对措施吧。