Fat and cholesterol are brain food.
One of the most important chemical compounds for the brain is glucose which is primarily derived from carbohydrates. When I was going through the initial phases of my weight loss efforts, I went through keitosis, a process where the body is evacuated of carbohydrates as fuel and starts plowing through fat as the next bio-available energy source. It’s incredibly effective and the fat literally melts away through weeks of exercise. It’s a slower process without exercise, but it does work.
One of the downsides, I found, was that I often felt a little heady and had trouble concentrating. A cup of black coffee often helped, but once I started bringing carbs back into my diet after about 18 weeks, it was noticeable how my alertness came back and my mind felt like it was firing on all cylinders.
This program is not ideal for everyone. Some people respond immediately, as I did, and some people do not. The fact remains that sugar is addicting and has been shown to light up the same parts of the brain in an MRI as cocaine and other narcotics. It’s a pleasurable consumable.
People love sweets, and for good reason; however, for millenia, man relied solely on meat and fat for sustenance. When agriculture became huge, commodities such as sugar were easier to obtain and sweets came into existence. Prior to sweets, it was alcohol that did a similar job, obviously depending on moderation of consumption. If you focus your diet on fat and protein with moderate carbohydrate intake and VERY sparing sugar consumption, you’ll notice a huge difference in how you feel and how your body feels.