The key is to take a supplement of the two main probiotics we need for the intestine, lacto-bacillus acidophilus and bifidobacterium bifidum.

关键是补充肠道所需的两种主要益生菌：嗜酸乳杆菌和双歧杆菌。

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If not, take a supplement.

如果摄入不足，需要补充。

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However, some people may need to take a supplement if advised by their doctor.

然而，如果医生建议，有些人仍需服用(维生素)补充剂。

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Health experts now recommend that women who are planning to become pregnant take a supplement of vitamin D as well as folic acid.

BBC: Vitamin D and weaning advice for new Scottish mothers

Holick has a solution--limited direct exposure to the sun--that infuriates many dermatologists worried about the skin cancer risk. (A far better idea, they say: Take a supplement.) In 2004 he published his book The UV Advantage, touting the benefits of sun exposure, and was kicked out of the BU dermatology department, where he previously held a joint appointment.

FORBES: Magazine Article

The letter said all pregnant and breastfeeding women should take a daily supplement containing 10 micrograms.

BBC: Vitamin D advice issued for babies and pregnant women