Sweet Potato红薯 (番薯)

Food · Vegetables · 根茎

旋花科, 不是土豆也不是山药 · 橙肉富 β-胡萝卜素、紫肉富花青素 · 升糖快要看做法: 煮 GI 低、烤 GI 高 · 比土豆纤维更高

What it is · three easy mix-ups

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红薯是什么 · 三个常被搞混

The sweet potato (Ipomoea batatas) is a storage root in the morning-glory family. First, untangle three things often confused:

Sweet potato ≠ potato: the potato is a tuber in the nightshade family, a different category;Sweet potato ≠ yam: a true yam is in the Dioscorea family; in China '山药' usually means a different crop, and the 'yam' labeled in Western markets is often actually orange sweet potato — the naming has long been messy;Different flesh colors = different polyphenols: orange flesh is rich in beta-carotene (a vitamin A precursor), purple flesh is rich in anthocyanin, and white / yellow flesh leans more starchy.
Nutritionally, the sweet potato is a combo of 'complex carbohydrate + fiber + potassium + antioxidant pigments' — China's fifth-largest staple and an important global food-security crop. It often gets two opposite labels — 'weight-loss miracle' and 'spikes blood sugar' — and the next screens calibrate both against evidence.

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