Since we base our food ratings on nutrient richness (or amount of nutrient per calorie), the least energy dense foods look the best in our assessment model. (whfoods.org)
This will lower your caloric intake and ensure that your body gets more nutrients per calorie. (healthyeating.sfgate.com)
The foods listed below will provide you with the most nutrients per calorie without plants. (optimisingnutrition.com)