The document discusses the multimix principle, which is a guideline for combining foods from complementary food groups to ensure nutritional balance. It is based on the Caribbean food groups of staples, legumes/nuts, foods from animals, fats/oils, vegetables, and fruits. The multimix principle uses four groups - staples, legumes/nuts, foods from animals, and vegetables. Meals can be double mixes of two groups, triple mixes of three groups, or quadri-mixes of all four groups. The combinations are intended to provide balanced nutrition through mixing complementary proteins and nutrients.