Hi Eliza, 
 if baby is active and not falling sick frequently then dont worry about weight.. Give healthy home made food regularly. give bananas, dates, paneer, green leafy vegetables , pulses. add ghee in his food daily.. read these articles.

<a href="http://app.babychakra.com/article/3542">Kiddy Kitchen: Calcium Special Meal Plan (Toddler)</a>

<a href="http://app.babychakra.com/article/2564">Meal Plans Week 4: Toddlers</a>

<a href="http://app.babychakra.com/article/3354">Kiddy Kitchen: Toddler Weight Gain Special</a>

Hi everyone ... Can you suggest foods to gain weight for 28 month old toddler.... TIA.