There is an interesting movement looking at how we can return to our primal blueprint. The primal blueprint concept brings us closer to our evolutionary process that connects us to activities and behaviors of our ancestors, that were habits and functions that led to creating and preserving versatile, strong, capable human health and expression. The concept behind the primal blueprint is simple and brings us closer to natural ways of living that includes the consumption of a balanced diet, eliminating the bulk of processed foods, incorporating movement, playfulness, rest and mental capacity as a framework for healthy living.
From a dietary perspective eating real whole foods and avoiding foods that have been processed or contain refined sugar as well as avoiding hydrogenated fats. Many schools of primal though avoid newly engineered modern grains or eliminate all grains and opt for a more hunter gatherer style approach to eating. Trends around intermittent fasting and paleo diet are associated with primal diets as well. Seasonal eating and eating foods that are hyper local or growing you own food is not only a way to control what is put into your food but also assure more nutrient density. Eliminating any genetically modified foods that will introduce foreign DNA that has been altered is also advisable.