Active vitamin D then goes on to cause the gastrointestinal tract to increase calcium absorption.

活性维生素D继续作用于消化道，增加钙的吸收。

" Women experience rapid calcium loss during their menstrual periods, and sunbathing can promote calcium absorption, " Luo said.

“女性在月经期间会迅速流失钙质，晒太阳可以促进钙的吸收。”

Hypercalcemia can result from increased calcium absorption in the gastrointestinal tract as well as hormonal causes like primary hyperparathyroidism.

胃肠道大量吸收钙可引起高钙血症，此外还有激素分泌失调，如原发性甲状旁腺功能亢进。

Finally, vitamin D promotes calcium absorption in the gut, so it increases serum calcium, promoting bone formation and decreasing bone resorption.

最后，维生素D促进钙在肠内的吸收，因此增加了血清钙的水平，促进骨生长并减弱骨吸收。

51 Now, you have to look at more than just calcium levels: there's also calcium absorption.

04: 51 现在，你不仅要看钙水平：还有钙吸收。

Additional factors include alcohol consumption, smoking, drugs like glucocorticoids, which decrease calcium absorption from the gut through antagonism of vitamin D, and drugs like heparin and L-thyroxine.

其他影响因素包括酗酒、吸烟、糖皮质激素等药物（其与维生素D的拮抗作用会减少肠内钙质的吸收）以及肝素或L-甲状腺素等药物。