A healthy diet for you may differ from my ideal diet, however there are some parameters from which to choose the best foods to support your health.
Although many people believe we are all different, and therefore what works for some may not work for others, this needs to be clarified.
A healthy diet constitutes choosing from among those foods that best support human health ~ whole, nutrient-dense foods that our human physiology is best designed to utilize for immunity from disease, and optimal physical, mental, and emotional health.
A look at human history and evolution, along with observations made by researchers and pioneers like Weston A. Price, DDS, who obtained detailed records and measurements comparing dental health, along with physical health, strength, and stature, and immunity from disease of Native populations still consuming their ancestral diets with those of similar ancestry who were consuming so-called modern foods provides a good indication of what constitutes a healthy diet for humans. Although the precise foods varied from tribe to tribe, clear patterns emerged.
The primary staples and foods considered most sacred were all of animal origin. The specific types of animal foods consumed varied depending on what was native to their region ~ an important macrobiotic principle.
All animals including humans are capable of consuming an omnivorous diet, however, the physiology of each species ~ gut size, stomach acid content, and much more ~ determine the types of foods ~ animals, fish, birds and insects versus plant matter ~ that each species specializes in eating, that is, what each species is designed to eat for optimal health.
A healthy diet for you will be determined by which foods best support your health goals, and can best restore and maintain health based on your constitution, current condition, past dietary history, the region you live, and even your ancestry.
There are many ways to customize your individual diet ~ within the full scope of available foods that the human physiology is designed to eat for production of energy, maintenance of a healthy weight, and immunity from disease and premature degeneration.
Don's video explains this further ~ showing the contrasting gut size and structure, stomach acid content, and other variables of herbivores versus carnivores, including our primate 'cousins.' While many are labeled 'omnivorous' ~ Don points out that all animals and humans consume both plants and other animals. What is important to understand is what our physiology is designed to preferentially specialize in for the most optimal physical health and development.