Lack of vitamin D is another factor to consider.

缺乏维生素D是另一个需要考虑的因素。

《柯林斯英汉双解大词典》

Lack of vitamin B can produce a lot of diseases.

缺少维生素B会引起很多疾病。

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A lack of vitamin Band disorders related to brain function.

贫乏维生素b与大脑功能变态有关。

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Several years later, researchers discovered the exact cause of pellagra: a lack of the B vitamin known as niacin.

VOA: special.2009.01.27

Exactly how a lack of vitamin D increases the risk of heart disease is an evolving story.

CNN: Vitamin D deficiency common in U.S. children

In fact, beriberi is a rare but easily treatable disease caused by lack of Vitamin B1 (thiamine), which is abundant in unpolished rice.

CNN: ASIANOW - Asiaweek

Other deficiencies lack of vitamin A or zinc for instance account for 1m.

ECONOMIST: Malnutrition