1: 1. Milk: Rich in protein and calcium, milk promotes healthy weight gain and strengthens bones in growing children.

2: 2. Avocado: Packed with healthy fats and essential nutrients, avocado aids in healthy weight gain and overall development.

3: 3. Nut butter: Nut butter, like almond or peanut butter, is a nutritious and calorie-dense option to promote weight gain in children.

4: 4. Whole grains: Including whole grains like oats and quinoa in your child's diet helps in healthy weight gain and improves digestion.

5: 5. Yogurt: High in protein and probiotics, yogurt supports weight gain and boosts gut health in kids.

6: 6. Eggs: An excellent source of protein and healthy fats, eggs contribute to healthy weight gain and provide essential nutrients.

7: 7. Cheese: With its rich calcium content and healthy fats, cheese aids in weight gain and supports bone development.

8: 8. Dried fruits: Nutrient-dense dried fruits like dates and raisins are healthy snack options that help in weight gain for kids.

9: 9. Lean meat: Including lean meats such as chicken or turkey in meals provides protein and aids in healthy weight gain for children. Remember, it's important to consult with a healthcare professional or nutritionist before making significant changes to your child's diet.