For safe weight gain after childbirth, along with Protinex Powder, your wife should eat small, frequent meals rich in protein and calories, such as milk, curd, paneer, eggs, dals, nuts, bananas, and healthy fats like ghee in moderation. Include nutritious snacks like dry fruits or smoothies, stay well hydrated, and get adequate rest. Light activity, like walking, can help improve appetite. If she is breastfeeding, she needs extra calories, so regular meals are important. If there is no improvement or she feels weak, consult a doctor to check for anaemia or deficiencies.