Baka makatulong Po ang vitamins, nakaka-raise ng appetite yun. And make sure na balanced yung diet ng anak niyo. Basahin din ito for more ideas: https://sg.theasianparent.com/healthy-foods-help-child-gain-weight/
check mo yung vitamins nya mommy kung nakukuha nya ba yung right para sa age nya and always ask your pedia