我们想提醒在加拿大的加拿大人，秋季和冬季的阳光不够强烈，以至于不能产生足够的维生素d。
We want to remind Canadians that in Canada, the sun is not strong enough in the fall and winter to produce enough vitamin d.
加拿大癌症协会说每日维生素D服用量的安全上限为2000IU，他们之所以推荐每日服用1000IU维生素D是考虑到饮食和其它一些维生素D的来源。
The Canadian Cancer Society says the daily upper safety limit is 2,000 units, and that their recommendation of 1,000 IU takes into account vitamin D from diet and other sources.
加拿大癌症协会说每日维生素D服用量的安全上限为2000IU，他们之所以推荐每日服用1000IU维生素D是考虑到饮食和其它一些维生素D的来源。
The Canadian Cancer Society says the daily upper safety limit is 2,000 units, and that their recommendation of 1,000 IU takes into account vitamin D from diet and other sources.
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