Rasa: meaning taste per Ayurveda is the foundation of food. Ayurveda looks at food through the lens of energy/ metabolism (agni) rather than as macronutrients or calories. There are 6 main rasas: sweet, salty, sour, pungent, astringent, and bitter. Rasas are formed from the 5 elements as well and according to your unique constitution, imbalance, or season you can vary them within your diet. The complete meal which will nourish your body and bring balance is when it includes all 6 tastes and is easily digestible by your agni.