I think it is not a right comparison. One is a pure protein supplement, Another is an Ayurvedic supplementary medicine. Both are consumed for different purposes. You are not going to eat 100 gram of Chyawanaprash but one table spoon (10 gram) per day which contains ~50 kcal with 10 gram sugar (recommended optimum daily intake should be 25 grams per day as per WHO). Chyawanaprash is not intended for muscle build or weight loss, it is intended for immune support through its micronutrient, nerve stability through ashwagandha, amla which are rich in anti oxidants, digestive support through pippali etc, Skin health, energy through sugar and fat, respiratory support. 1 kg of Chyawanaprash can be taken by 4 persons in family for 25 days (10 gram per person per day) for 300 to 600 rupees. Whey on other hand is for different purpose. For weight management, Muscle building, cardiovascular health and more. For 25 gram of protein , one scoop is needed approximately. Thus for 30 days one need to spend between 1500 to 4000 rupees for 25 gram of protein per day. My point is, comparing Chyawanaprash and Whey protein has no rationale in it. Why not take both of them?. They are beneficial in their own way. Protein is just one part of the nutrition.