Bananas are a good source of “potassium”, NOT “protein”. I think you must be getting the two mixed up.
A medium size banana only contains about 1 gram of protein where as 1 scoop of protein powder contains over 20
grams of protein. Ideally you need 1 gram of protein per pound of bodyweight per day. So for example, if you weigh
175 lbs. then you need at least 175 grams of protein per day.
Fruits and vegetables in general are not a good source of protein, but they are a great source of vitamins, minerals,
fiber, antioxidants, etc.
High protein foods include meat, poultry, fish, dairy products, and protein supplements.
Protein Shake with Banana
“After a workout, you want ample protein combined with a carbohydrate,” says Reisinger. A protein shake made from whey protein, water, and half a banana is a great choice, since your body quickly turns it into energy.
Recommended Serving Size: 2 scoops of whey protein powder combined with water and 1/2 banana, 250 calories