The digestibility of the carbs in sweet potatoes is highly dependent on the way they're cooked. Boiling them leads to a fairly low glycemic index and glycemic load, whereas baking them essentially turns them into candy: http://www.livestrong.com/article/295025-the-glycemic-index-...

I should probably have specified that when it comes to foods like that which are high in carbohydrates I won't eat a significant amount or I'll get knocked out of ketosis just like everyone else would.

I rarely eat foods that are primarily carbohydrate based since that defeats the purpose of going keto, but if I do I try to find alternatives (sweet potato replacement for regular potatoes) and even then I severely restrict the amount that I eat. Sweet potatoes have important nutrients in them like beta-carotene, vitamin A, manganese and copper. It is as far as I'm aware always preferable to get vitamins and minerals directly from your diet rather than supplementation.

See http://www.yummly.com/recipe/Low-Carb-Potato-Salad---paleo_-... for an example of a keto friendly sweet potato salad.

For me at least it's important to get creative with what I eat. Staying Keto is a long term goal for me and while I started off doing Keto as a means to lose weight the immediate health benefits convinced me to stay Keto for the foreseeable future. While it's possible to do keto off nothing but cheese, bacon, avocadoes, eggs and low-carb greens such as spinach and broccoli it can get boring.

As long as my body stays in ketosis and I'm covering my body's nutritional needs I believe strict moderation rather than completely cutting all carbs is an acceptable way to diet. While it is completely possible to eliminate all carbs from your diet it is not requisite for staying in ketosis, though you of course do not have much margin for error before you knock yourself out of ketosis. Good news is it's much easier to get back into ketosis if you overshoot your daily carb allowance compared to the initial adaption period where you have to be very strict in order to adapt your body to keto.

For people who are dealing with insulin resistant type health conditions like diabetes type 1, 2 or even pre-diabetes there might be entirely different dietary requirements and a very strict emphasis on eliminating all carbs may be appropriate. When it comes to carefully managing health conditions with potentially severe health ramifications that's something which requires cooperation with a physician.

For most people, as long as you stay beneath the protein and carb limit you're completely fine.