Eating a healthy diet while you are breastfeeding is important because what you eat determines the energy, protein, nutrient and vitamin content of your breast Nutritional demands during lactation are high and can have a negative impact on both you and your infant if they are not met. Remember the following pointers 1) Increase fluid and energy intake to support adequate milk production. 2) Eat a well-balanced and nutrient dense diet to ensure that you achieve the all the nutrient needs during this period of life. 3) Pay particular attention to the need for essential fats, vitamins A, Bs and C as well as zinc, iodine and calcium. 4) Eat only clean and safe food as food poisoning can deplete the body of critical nutrients. 5) Avoid alcohol and limit caffeine. I took mum’s milk when I was breastfeeding my baby but didn’t put on any additional weight. I think it depends on individual.
Yes I gained weight. But it's a healthy way to gain weight as breastmilk is nutritious.