I'm an avid tennis player and have been a little concerned about a certain amount of conflict between this sort of, not chronic cardio exactly, activity, and a relatively low carb intake--not to mention the potential issue of inflammation from long exercise sessions.
I have observed a certain amount of fatigue in myself since bumping up the tennis to 3-4 times a week, 1-2 hours per session, and have since augmented my diet with a bit more starch--carrots and sweet potatoes--to see if that will help.
Furthermore, I've been gathering the courage to go out on the court in my Vibrams--been putting this off until I build up a little more experience sprinting/changing directions in them first. The only things on the web about Vibrams + tennis are pretty much mocking the idea.
A few of you have mentioned tennis is part of your exercise regimen; what wisdom do you have for me please? I probably get 40-50% of my calories from animal/coconut fat, and <100g of carbs per day from leafy veggies, 1x fruit/day, and the aforementioned starches. Nuts=1-2x per week only, 2-4 grams at a go. D/Selenium/Magnesium/fish oil å la Harris, plus kelp (å la Melissa!).