Most pediatricians recommend not adding sugar or salt to your child’s food in her first year of life. It’s difficult to say how much sugar is too much, but most sugars are essentially unnecessary for the body as they provide few vitamins, minerals or other nutrients. On a day to day basis, a high sugar intake may make your child cranky and irritated when the sugar level in her body drops after a few hours of eating them.
In my personal experience, refined sugar intake can have dramatic effects on infants. Seeing my own and other children, I have regularly observed hyperactivity and sometimes very difficult behavior after taking in lots of sugar (in birthday parties etc.), followed by intense fatigue or hysteric breakdown after an hour or two. So what we try to do with our Smash Cakes is reduce their sugar intake towards the socially acceptable minimum (without being neurotic)