但是其实，我们随时都可以烘烤，或者用微波炉烘焙来食用这种茎块食物，以获取丰富的维生素A，其剂量是美国食品药物管理局所建议的每天食用剂量的5倍。
But you can bake or microwave these tubers anytime for a super dose of vitamin A — five times the daily value (DV) the Food and Drug Administration (FDA) recommends.
如果这些人每天食用一定剂量的维生素，他们得感冒的几率会降低50%。
They were 50 percent less likely to catch a cold if they took a daily dose of vitamin c.
但是考虑到人性本质，食用微剂量的巧克力可能不大现实，这也了强调利用营养品来支撑人体健康是很困难的。
But given human nature, microdoses of chocolate may be impractical, underscoring the difficulties of using nutrition to bolster fitness.
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