Your individual fat adaptation period. Remember your body needs time to become fat-adapted and that time depends on your metabolism. For instance, if you’re coming off a Standard American Diet (SAD) and your adult body has never run on ketones before, your adaptation period might take a little longer. You’ll only experience the true weight loss effects of keto when your body is actually running on ketones.
A study of 89 obese adults who were placed on a two-phase diet regimen (6 months of a very-low-carbohydrate ketogenic diet and 6 months of a reintroduction phase on a normal calorie Mediterranean diet) showed a significant mean 10% weight loss with no weight regain at one year. The ketogenic diet provided about 980 calories with 12% carbohydrate, 36% protein, and 52% fat, while the Mediterranean diet provided about 1800 calories with 58% carbohydrate, 15% protein, and 27% fat. Eighty-eight percent of the participants were compliant with the entire regimen.  It is noted that the ketogenic diet used in this study was lower in fat and slightly higher in carbohydrate and protein than the average ketogenic diet that provides 70% or greater calories from fat and less than 20% protein.
The second reason is arguably more important: Vegies taste better with olive oil, so people are likely to eat more. “My rule of thumb is one tablespoon of extra-virgin olive oil to one cup of veg,” Flynn says, adding that sautéing them or roasting are tasty options, plus these methods maintain much of their nutrient value. “Eating veg like this fills you up and stops you being hungry.” An added bonus, she says, is fibre from the veg also improves bowel regularity.
Perhaps one of the biggest reasons that MCT oil sales have skyrocketed in recent years is due to growing popularity of “The Bullet Proof Diet.” “The Bulletproof Diet,” written by Dave Asprey, is a dietary approach for rapid weight loss and better cognitive health that recommends you receive 50 percent to 70 percent of your energy from healthy fats, especially MCT oil, grass-fed butter and coconut oil. (1) The plan’s signature breakfast, “bulletproof coffee” — a mix of coffee, MCT oil and butter — promises decreases in hunger levels, the ability to fast easily, better brain function and mental clarity. While coconut oil benefits are still recognized by Bulletproof dieters, MCT oil is considered the gold standard, and the official Bulletproof site sells its own MCT oil, called Brain Octane Oil.
Nine months ago she decided to try the stricter keto diet and followed our advice to help support this way of eating. By testing her urine with keto stix she could see she was expelling ketones in the low to moderate range. But still her weight was increasing — she gained a total of 7 lbs (3 kg) over nine months of keto eating. And her clothes were feeling tight and uncomfortable. What was she doing wrong?
Given the choice of a fat and protein source like meat or a salt and carb rich food like potato chips, we are designed say yes to both. No matter how stuffed we are, the most primal parts of our brain will typically tell us that there is room for more if a novel food source is available. These behaviors were essential for our survival as a species. If we ate reasonably whenever food was available, then we wouldn’t have enough fat or muscle to fuel us when calories were scarce.
Now, if you had looked only at the blood lipids of the monkeys eating the monounsaturated-fat-rich diet in this study, you’d have thought they would have ended up with cleaner arteries than those that ate more saturated fat. Compared to monkeys fed the diet high in saturated fat, the monkeys fed the monounsaturated-fat-rich diet had lower LDL bad cholesterol levels and higher HDL good cholesterol levels (similar to what happens in studies with humans). And compared to monkeys fed a diet high in polyunsaturated fats, the monkeys fed the high-mono diet had HDLs that were nearly twice as high (again, just like humans).