Count calories in smoothies.
A smoothie is priced ingredient by ingredient, then divided into realistic servings, because the jug is almost always bigger than one glass. Fruit and the liquid base are modest per 100 g; the add-ins are not — nut butter runs near 600 kcal per 100 g, so two tablespoons can outweigh all the fruit combined. Serving count is estimated at 300 ml per glass from the blended volume, which is why the per-serving figure can be far lower than the jug total.
Blend energy
Total = each ingredient's weight or volume x its calories per 100, summed
Per serving
Per serving = total / (blended volume / 300 ml)
These figures are population-average estimates for general planning only and are not medical or dietetic advice. Individual energy and nutrient needs vary widely with body composition, activity, medication and health status. Consult a qualified health professional or registered dietitian before making significant changes to what you eat, and especially if you are pregnant or breastfeeding, are under 18, or have a medical condition or a history of disordered eating.
It is not, gram for gram — but blending removes the effort of chewing and the volume of a jug is far more fruit than most people would eat whole. Three bananas is a normal smoothie and an unusual snack.
No, blending keeps the fibre but breaks it up, which speeds gastric emptying and blunts the satiety benefit. Juicing, by contrast, removes the fibre entirely.