What should be weight of 3 month old

You should eat everything in moderate quantities. Try to keep your hands off oily and sweet food items. You can go through our blog to get extensive details about the diets you can try. https://www.credihealth.com/blog/low-carb-indian-diet/

Take oatmeal , besan or moong dal cheela or dhokla / khandvi / vegetable sandwich / vegetable daliya / Fruit chat or sprouts in breakfast. 

Take high fiber low fat diet followed by detox diet. Ask me directly for customized diet plan for you.