S.L.
First question is why do you feel the need to give pediasure? What do you feel he might not be getting.
Look through the ingredients and see if this is what you want him to have. Sugar is the second ingredient . There's 18 grams in 8 ozs
pediasure has 2.2g of sugar in each ounceto compare, coke has 3.25g in each ounce. There are really good protein powders on the market if that is your concern. Or FRESH fruit smoothies (no Juice - too much sugar) you can blend for whole nutrition and blend in some celery or spinach and he won't taste it but get fiber and nutrtion.
Here are the ingredients for the vanilla pediasure
WATER, SUGAR (SUCROSE), CORN MALTODEXTRIN, MILK PROTEIN CONCENTRATE, HIGH OLEIC SAFFLOWER OIL, SOY OIL, WHEY PROTEIN CONCENTRATE, MEDIUM-CHAIN TRIGLYCERIDES; LESS THAN 0.5% OF: SOY PROTEIN ISOLATE, SHORT-CHAIN FRUCTOOLIGOSACCHARIDES, NATURAL AND ARTIFICIAL FLAVORS, CELLULOSE GEL, MAGNESIUM PHOSPHATE, POTASSIUM CITRATE, POTASSIUM CHLORIDE, CALCIUM PHOSPHATE, CALCIUM CARBONATE, POTASSIUM PHOSPHATE, SALT (SODIUM CHLORIDE), CELLULOSE GUM, CHOLINE CHLORIDE, SOY LECITHIN, MONOGLYCERIDES, C. COHNII OIL, ASCORBIC ACID, m-INOSITOL, POTASSIUM HYDROXIDE, CARRAGEENAN, TAURINE, FERROUS SULFATE, dl-ALPHA-TOCOPHERYL ACETATE, L-CARNITINE, ZINC SULFATE, CALCIUM PANTOTHENATE, NIACINAMIDE, MANGANESE SULFATE, THIAMINE CHLORIDE HYDROCHLORIDE, PYRIDOXINE HYDROCHLORIDE, RIBOFLAVIN, CUPRIC SULFATE, VITAMIN A PALMITATE, FOLIC ACID, CHROMIUM CHLORIDE, BIOTIN, POTASSIUM IODIDE, SODIUM SELENATE, SODIUM MOLYBDATE, PHYLLOQUINONE, CYANOCOBALAMIN, AND VITAMIN D3.