I frequently get asked the difference between white and sweet potatoes.
This has been a long debated subject - heck, another nutrition company made waves a few years back when they announced that it was now ok to eat white potatoes.
Technically, the sweet potato is a morning glory and the white potato is a nightshade, but they both grow the same way.
Nutritionally, there's not a huge difference. It's more up to taste. Other than sweet potatoes having a huge Vitamin A boost and white (Idaho) potatoes having a nice potassium pump, they're almost identical nutrition-wise.
That's it! They're both good and nutritious. Prepare them a million different ways and enjoy them in moderation.