Is there an ideal diet for everyone that is optimal for human health?
Apparently not.
According to a study that just appeared in the journal Obesity Reviews which analyzed the traditional diets of all the still existing tribes of hunters and gatherers, there are too many differences to be able to define the characteristics of an ideal diet for humans .

In fact, there are tribes that consume over 80% of carbohydrates daily. Tribes that eat only roots and mostly consume meat, especially offal. In fact, each tribe seems to have specialized in its own diet based on the availability of food and environmental characteristics.

Yet in all these tribes, even the most sedentary ones or those who follow diets that are more caloric than others, the rate of obesity and related diseases is very low, or less than 5%. And the percentage of fat mass per capita is just as low. Metabolic diseases are rare.

However, the researchers identified a few common characteristics across all tribes , which are the only ones that would constitute an ideal universal diet.

• Exclusive consumption of natural products: from the land, from hunting or fishing.
• Higher fiber content than an average Western diet.
• Higher vegetable content.
• Choice of foods rich in micronutrients (vitamins and minerals), for example tubers, small animals.
• Reduced glycemic index. The most consumed sugar for some tribes, for example, is honey. To these general lines, the researchers added two interesting data, although not strictly dietary.
• A lower level of stress than in Western populations.
• Greater physical activity, which however does not translate into greater energy expenditure.
  In the sense that in these tribes in all probability the metabolism has adapted to an active lifestyle.