The most nutritious smoothies are made with whole foods like fruits, vegetables, yogurt, and healthy fats, while those with lots of added sugars aren’t as nutrient-dense and may contribute to negative health effects over time. Smoothies high in protein and fiber may even aid weight loss by keeping you full
The 21–day smoothie diet plan involves consuming smoothies in addition to your meals. You can replace either one or two meals a day with smoothies for a limited amount of time in this diet plan. It is not safe to replace all the meals with smoothies, as you may suffer from various nutritional deficiencies.