This special form of vitamin D is naturally present in breast milk 这种特殊形态的维生素D天然存在于母乳中。
In the 1930s, vitamin D deficiency was linked to rickets. That discovery led in 1933 to the fortification of milk with vitamin D. 20世纪30年代,人们发现佝偻病与维生素D缺乏有关,所以从1933年起开始在牛奶中添加维生素D。
Together, milk, cheese and yogurt provide excellent sources of calcium and vitamin D. 牛奶、乳酪和酸奶都能极好得提供钙质和维生素D的来源。
The amount of vitamin D in the milk is not adequate to the demand of the infant. 牛奶中维生素D的含量不能满足婴儿的需要。
Sunlight is the main source, but vitamin D is also found in oily fish, milk, liver and eggs. 阳光是主要来源,维生素D还存在于鱼油、牛奶、肝脏和蛋类中。
In some countries, milk producers add vitamin D to milk so children will get enough. 在一些国家,牛奶生产中添加维生素D这样可以使儿童获得充足的维生素D。
Infant formula contains vitamin D, the AP explains, while breast milk is sometimes deficient. AP专家进一步解释,婴幼儿配方奶粉含有足够的维生素D,而母乳有时候会缺乏。
Nonetheless, it is possible that getting more vitamin D from foods ( like fortified milk and oily fish) or supplements will help maintain youth and vitality as we enjoy longer lifespans. 然而,在享有更长的寿命的同时,摄取更多的维生素D的食品(如强化牛奶和鱼油)或将有助于保持青春和活力。
Bone mass of middle school girls two years after cessation of calcium – vitamin D-fortified milk supplementation: follow-up study 补充强化钙-维生素D牛奶中止两年后中学女生骨量的随访研究
Use of vitamin D fortified cow's milk in the prevention of rickets 四川省维生素D强化牛奶预防佝偻病的应用