I've heard it's not safe to add salt or sugar to your baby's food till they're 1 year old. Anyone know why?

Yes avoid adding sugar and salt to baby's food before he or she turns 1. Sugar is made through many chemical processes that are harmful to babies. The consequences to sugar for babies include obesity, depressed immunity and tooth decay. By sugar, it means “White Refined Sugar” not the natural sweetness of fruits and natural sweeteners. As for salt, a baby needs less than 1 g per day (0.4g of sodium) and this is mostly met by the breastmilk or formula. So any extra salt will be a burden on the tiny kidneys and the kidneys will not be able to function properly due to the excessive load. This may lead to kidney disease and it has also been proven to cause hypertension in the adult life. Excessive intake of salt in childhood has also been attributed to diseases as: - osteoporosis - cardiovascular diseases - respiratory illnesses. Read more here : http://www.mylittlemoppet.com/why-no-salt-and-sugar-for-babies-until-1-year-of-age/