Anybody can afford them, high in complex carbohydrates, high in niacin, high in folate.

任何人都能吃得起，富含复合碳水化合物，烟酸和叶酸。

The carrots turn you yellow, the niacin turns you red. Get some finger-paints and do the math.

胡萝卜让你变黄 烟酸让你变红 去找点涂料 注意点饮食。

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

几年后，研究人员发现了糙皮病的确切原因：缺乏称为烟酸的 B 族维生素。