I had this stoush with [MENTION=8412]MaxBrenner[/MENTION] on his facebook page. I'm not disputing there's no metabolic advantage but that's not the only factor in weight loss.
The main reasons I stick with a keto/LCHF diet are
- There's scientific evidence that high fat/low carb meals blunt your insulin response meaning you feel less hungry less often and require less food to be satiated. I lost 9kgs in 3 months this year with ease on an intermittent fasting keto diet (took me 6 months to achieve the same thing leangains style)
- Cravings a drastically reduced
- Despite their being scientific evidence of no metabolic advantage I've found I've been able to eat ~300 more calories per day on keto than with leangains and achieving better results
Put it this way I followed a leangains IIFYM style diet for 6 months last year and found it a lot more difficult and draining than following LCHF, meaning I believe it's a diet that you can only sustain for a certain period of time. I believe I'll eat LCHF for the rest of my life because of how much better it makes me look and feel.
Just ask my GF
I've gone from an angry calorie counting IIFYM gorilla to a zen-like keto buddha