I've worked with many strength trainers that complained of GI distress when emphasizing sweet potatoes as their primary carbohydrate source. (truthaboutabs.com)
In my humble opinion, this workout is the best of the three for the majority of regular strength trainers. (fitnessandpower.com)
Strength trainers also burned a greater proportion of calories from fat than carbohydrate. (womenshealthandfitness.com.au)