For me, under doctor's supervision (two doctors) I did better increasing from 20 carbs to around 50-60. I felt better and lost as much weight, definitely had more energy. But I am on meds that cause weight gain ... so who knows... it's all so individual and you have to tweak it so often... whatever works for you. Turtles just aren't a good food choice but there are others that are higher carb that could oomph your energy IMHO. But I am such a novice here even after almost 2 yrs. I just listen to my drs., read what's here, and go slowly with the flow. Good luck.