Probably healthy although US sweet potatoes are bred sweeter than Asian varieties.
Basic sweet potatoes are strong sources of beta-carotene, manganese, and copper. A small one has 22g carbs and 3g fiber (food for your gut flora), making it the perfect post-workout snack.
A meal of 4-8 oz of lean protein PLUS 50-100g of nutritious, Paleo friendly carbohydrate such as yams, sweet potatoes, squash or fruit should be consumed within 30 min post workout to optimize repair of muscle tissue and to ensure muscle glycogen is optimally replenished.
Drs. Hugh Trowell and Denis Burkitt, titled Western Diseases: Their Emergence and Prevention. It’s a compilation of chapters describing the diet and health of traditional populations around the world as they modernize.
The book contains a chapter on Papua New Guinea highlanders. Here’s a description of their diet:
Their calories were almost entirely supplied by sweet potatoes, with occasional feasts on pork.
…. No obvious malnutrition was observed in this population, although iodine-deficiency cretinism occurs in some highlands populations:
Young adults were well built and physically fit and had normal levels of haemoglobin and serum albumin. Further, adult females showed no evidence of malnutrition in spite of the demands by repeated cycles of pregnancy and lactation. On the basis of American standards (Society of Actuaries, 1959), both sexes were close to 100 percent standard weight in their twenties.
Although sweet potatoes are considered a safe starch on the Perfect Health Diet, they are not very safe for me. When I discovered how yummy sweet potato fries are, I started eating several sweet potatoes per day. Within a few days, I was limping and my neck was stiff. By the end of the week, my limp was extreme.
I confess to being puzzled as to how sweet potatoes caused Chris’s symptoms. If he tolerates spinach and wheat bran, it seems unlikely that the oxalate in sweet potatoes would be responsible. He might wish to test various foods and try to narrow down the source of his sensitivity.
For our part, we may cease listing sweet potatoes among our “safe starches” and specify yams instead, since a “safe starch” should probably be low in fructose.