World Council for Health
Food synergy is the collaboration of nutrients to create more outstanding positive health outcomes. It implies that the perfect mixture of food constituents operates in concert with the life of the organism eaten and the life of the organism eating it.
… An essential finding of Food Synergy is that it is not so much the quantity of a food that is decisive but rather its combination with other fruits, vegetables, and herbs. Often, even the most minuscule amounts are enough to achieve a synergistic effect.