Food by definition consists of protein, carbohydrate, and fat used by the body to sustain growth, maintain, and support vital processes. Snack foods are considered healthy if they have less fats and less salt. Snacks, as they become part of regular meal, have a major role in everyday diet. Snacks that have no nutritional value are considered as junk. Consumption of these unhealthy snacks can result in obesity, hypertension, and cardiovascular diseases. Research data have discovered that junk snack food is one of the prime reasons for obesity among people in developed countries. There is growing awareness among consumers in the developed countries to eat healthier and more natural snacks. Among the different food processing technologies, extrusion is a versatile technology that can be used for making healthier snacks. Extrusion cooking helps to reduce the antinutritional factors in food, increases the nutritional stability, and creates new products using traditional and novel ingredients. Extrusion system helps to develop third-generation snacks that are nutrient-rich and result in a product with long shelf life and high bulk density and can be transported long distances more cost-effectively. These extruded products can be consumed by frying, microwaving, or hot-air frying. Currently, snack industries are using enrichment and fortification methods that improve the nutritive value and are also focusing on using salt replacements and mono- and polyunsaturated fats to create healthier snacks. Many health agencies are recommending to the consumer to eat healthier snacks that are more plenty in fruits and vegetables.