PROTEINS
Fast foods supply good amounts of protein if prepared using animal sources such as fish, beef, chicken, cheese and milk or in a cereal-pulse combination as in idli or dosa .
FAT
Some of the major components of fast foods like beef ,cheese ,mayonnaise, and deep-fat frying causes the food to be a rich source of fat .people who are on reducing diet need to avoid such foods.
CARBOHYDRATES AND FIBER
Carbohydrate is found in some of the foods like soft drinks, shakes ,fried foods etc .However, the fiber content of most fast-foods is low except when green vegetables ,tomatoes, carrots, cucumber,onions , etc. are added to them .
CALORIES
The calorie value of the snacks and fast foods is generally very high .
VITAMINS
Most fast-food meals provide adequate amounts of vitamins , mainly thiamine , riboflavin, niacin, pyridoxine and cyanacobalamin . Vitamin is a relatively low except in foods where use of carrots ,dark green leafy vegetables ,and tomatoes is in abundance.
MINERALS
Most shakes and milks are high in calcium and phosphorus. Hamburgers prepared with meat are a good source of iron . However ,sodium is found in very high amounts in salted fast foods such as chips ,french fries ,etc .Therefore ,persons advised to lower their intake should eat such fast foods sparingly .
One of the main drawbacks of a fast-food restaurant is its lack of variety .This is especially so for people who frequently visit them .It may ,therefore, be best to incorporate meals with foods eaten at fast food outlets. this will assure an adequate nutrient intake .
Fast foods also contain several synthetic additives such as preservatives , artificial colours , artificial colours, artificial sweeteners, which if consumed over a long period of time , can be harmful .Also fast-food cost about twice as much as when prepared at home .
