Sweet Potato Health: Glycemic Index, Diets & Kidney Risks

Sweet potatoes are a complex carb staple, but are they safe for renal diets? Compare the nutritional value of purple sweet potatoes and yams, and learn if this root vegetable helps with bloating or lowering cholesterol.

Purple Sweet Potato Nutrition

Published Jul,08 2011 | By Carolyn Robbins

The creamy, yellow flesh of orange sweet potatoes is a familiar comfort, while a lump of purple tuber might look a little out of place at your dinner table. Purple sweet potatoes, also known as Okinawan potatoes, share the same starchy sweetness of more familiar varieties.