The amount of calories in a Frappe are 510 calories in an average size Frappe.
A smaller sized Frappe may only contain around 200 to 300 calories per Frappe but the larger Frappe contains at least 510 calories.
So if you're on a weight loss diet or need to watch your weight or calorie intake then consuming too many Frappes could cause you weight gain.
But in moderation the Frappes can be consumed even when on a weight loss diet.
Frappes are not healthy for anyone and contain no nutritional value but they are okay in moderation.
Just like anything else is okay in moderation even if they contain no nutritional value the Frappes are okay as well.