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。

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Another key recommendation of the report was the development of environmentally-friendly sources of renewable energy such as wind farms.

BBC: Minister urged to back nuclear shut-down

Study after study indicates that one of the top sources of information for making a B2B purchase is peer recommendation.

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Though Saturday's recommendation is not binding on the 22 members of the Arab League, Arab diplomatic sources told CNN they were certain, given the mood here, it will be adopted by each of the members.

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