70 to 90 calories. Avocado and strawberry are nutritious foods, but they are also relatively high in calories. Avocado is rich in fat and protein, while strawberry is a fruit with sugar and fiber. In the process of making strawberries with mixed juice, raw cheese and avocado, some other ingredients, such as cream and sugar, may be added, which will increase calories. Therefore, every 100 ml of fruit juice mixed with raw butter avocado strawberries contains about 70-90 calories.