
Originally Posted by
NWPrimate
Some/most of us do. Protein has to stay well below 50% of calories, and so the rest must be divided between fat and carbohydrates. In my understanding, fat is a much cleaner fuel source as it avoids the pitfalls of insulin and all of the metabolic issues associated with that, as well as the glycation (sugar sticking to proteins...damaging to all tissues and proposed as a major mechanism in the "normal" aging process).
You can adjust your macros however you like, but from my research fat is a great fuel for your body.
But as posted before, eat clean, whole, natural foods like plants and animals and you'll be way ahead of the pack.
Active healthy people can eat a ton of sweet potatoes and be just fine, but if you have any metabolic derangement (overweight, insulin resistant, diabetes, high triglycerides, elevated blood sugar) you may want to read up on fueling your body primarily with fat until you can correct the disorder.
Personally, I eat meat, vegetables, berries, butter/coconut oil, and a few nuts.
I average under 50 grams of carbohydrates on a normal day, mostly from veggies and berries.
On heavy lifting days, I may go up to 100-150 carbs through post workout meals of sweet potatoes, white rice, and coconut water.
Generally speaking, fat is my fuel, protein is my source of raw building materials, and plants provide any missing nutrients and add antioxident protection. I use carbohydrate strictly to refill glycogen stores within the muscle.
Plus, I think there is something to be said for keeping your system in practice when it comes to carb digestion. I can't back this up with studies, but I have a hunch that someone that eats a few sweet potatoes once or twice a week is probably more efficient at handling carbohydrate than someone that eats VLC every day.
You'll find what works best for you, but this formula has done wonders for me for improved lipids, weight loss, strength, energy, mood, sleep and a lot more. I can tell that this is the diet my body prefers, but everyone is different.
Hell, you could just avoid wheat and sugar and you'd be way ahead of most of the country.