Introduction Smoothies are a great way to get a boost of nutrients and vitamins in a convenient drinkable package. Smoothies are also easy to make at home, which means that you can control what goes into them (and therefore how healthy they are). If you're thinking about starting on a smoothie diet, there's a few things you should know first: 1. Start slowly When you start a smoothie diet, it's important to start slowly. If you're used to eating a lot of food every day, then your body will be shocked when you suddenly cut down on your calorie intake by consuming just a smoothie or two (or three) per day instead. This can make you feel tired and weak and even cause some digestive issues like constipation or diarrhea. To keep this from happening, try starting with one small smoothie per day for the first couple days of your new diet plan. This will allow your body time to adjust and get used to its new routine before adding more ingredients or increasing the amount of fruit in each drink so as not to overwhelm yourself too quickly with too much sugar all at once!