Royal Society for Public Health Even though breast milk is the best option for your baby and nature's gift to mankind, you may have to rely on formula, to supplement breastfeeding. You cannot measure breast milkunless it is pumped out, but formula can be measured easily. If your baby is less than 6 months old and has not been introduced to solid foods yet, the general rule applies that you feed it at least 2.5 ounces of formula per pound of body weight every day. Baby weight and formula servings have a close link. According to some studies, babies fed on formula gain weight more rapidly than babies who are breast fed. However, the recent findings show that the most commonly used formula which is based on cow's milk, may cause the most weight gain. You may have to use formula for your little one instead of breast milk in certain scenarios and that is perfectly fine. Formulas are all regulated by the U.S. Food and Drug Administration. This is why they are safe and effective for your baby. Formula falls into 3 categories, Cow's Milk Formula, Soy Formula and Protein Hydrolysat or Hypoallergenic Formula. Although much research has gone into developing formula milk over the years, yet it is still second-best to breast milk.It is important to know the best time to weigh your baby as it can vary depending on factors such as meal-times or poop-times. Weigh your baby using the same scale at the same time in