Hi, thank you for the question.
for a toddler with Down Syndrome would not differ much from the diet of a healthy toddler.
However, because of poor muscle tone, the physical development of children with Down syndrome is delayed. They also have a tendency to gain weight. The increased weight along with poor physical activity due to decreased tone puts extra stress
on muscles which further makes them weak.
Hence, it is important that we take care, about keeping the diet such, that it is balanced, nutricious, less fatty so that weight can be kept towards more lean side as compared to other children of same age.