COLUMBIA (WACH) -- â??Your key to weight loss is to eat more fat. Eat fat, get thin!â?? says Dr. David Perlmutter, author Grain Brain.
Perlmutter says that Americans should also be eating very few carbs, just 60 to 80 grams a day.
â??For more than 99 percent of our time on this planet, we were on a high far, low carb, virtually gluten-free diet,â?? says Dr. Perlmutter.
Perlmutter says carbs cause a blood sugar spike. A recent study showed even small increases in blood sugar up the risk of dementia and type-two diabetics have doubled the risk of Alzheimerâ??s.
Another study found the risk of dementia was 42 percent lower in those who consumed a higher fat, lower carb diet.
â??We should prevent the disease because we know how to do that right now, and itâ??s not going to cost anything,â?? says Dr. Perlmutter.
Perlmutter has vocal critics who say some people may interpret Grain Brain as giving consumers the go-ahead to load up on high-fat meats and dairy.
Perlmutter points to a recent study of more than 350-thousand people that found no link between saturated fat and cardiovascular risk.
â??Thatâ??s the information that people have been receiving for decades, and it has absolutely no scientific merit,â?? says Dr. Perlmutter
The bottom line for Perlmutter is that history proves grains arenâ??t meant for our brains.
He said, â??â??This is a totally foreign diet for humans. Weâ??ve never had carbohydrates like this in our diet.â??
Perlmutter says to load up on nuts, veggies, olive oil, eggs, wild fish, free-range chicken, grass-fed beef, avocados and some dairy, but to choose whole milk.
He says to stay away from trans fats, sugars, processed foods and carbs! Consume fruits sparingly and eliminate gluten.