my baby complete one year 4 month but she is weight 8kg only??? I m very tensioned why she not gain weight

A. dont be tensed abt wt.. babies at 1 yr should be three times the birth wt... gv wt gain foods as potato sweet potato ragi dalia banana avocado pumpkin dry fruits as cashew almonds walnuts in paste or powdered form ghee butter cheese in moderate amt.. strt with vit supplements as zincovit...