Been studying several lifestyle eating patterns for about a year now, but wasn't ready to commit to any of them. It took a while to overcome the anti-high-fat mentality.
Paleo and its variations were intriguing, but I finally was tipped over the edge after reading Grain Brain, by Dr. Perlmutter. It took me several weeks to wean off the grains already in the house and ramp up my fat intake - no gallbladder has made it harder for me to handle the increased fat intake.
But I've been about 65% fat, 20% protein, 15% carbs for two weeks now, and very pleased with my energy level and moderate weight loss. I have a lot to learn about LCHF, but I'm not missing the grains - except for cornbread LOL.