Similac Lower Iron Step Infant Formula 10+ Months 850g Wheat Free petrochemicals (like propylene glycol) petrochemicals (like propylene glycol) Vitamin A (as beta carotene) 25‚000 iu Vitamin D (as cholecalciferol)(D3) 800 iu Vitamin E (as d alpha tocopherol succinate) 400 iu Thiamin (as thiamin HCl) (B1) 100 mg Riboflavin (vitamin B2) 50 mg Niacin (as niacinamide) 100 mg Vitamin B6 (as pyridoxine HCl) 25 mg Folate (as Metafolin®‚ L 5 MTHF) 800 mcg Vitamin B12 (as methylcobalamin) 1‚000 mcg Biotin 800 mcg Pantothenic acid (calcium pantothenate) (B5) 400 mg Calcium (as calcium citrate malate) 300 mg Magnesium (as magnesium aspartate) 200 mg Zinc (as zinc picolinate) 25 mg Selenium (as selenomethionine) 200 mcg Copper (as copper glycinate) 2 mg Manganese (as manganese aspartate) 5 mg Chromium (as chromium polynicotinate) 500 mcg Molybdenum (as molybdenum aspartate) 100 mcg Potassium (as potassium aspartate) 99 mg Boron (as boron glycinate) 2 mg Vanadium (as vanadium aspartate) 200 mcg Inositol hexaniacinate (no flush niacin) 90 mg Ascorbyl palmitate (fat soluble vitamin C) 100 mg Riboflavin 5’ phosphate (activated B2) 25 mg Pyridoxal 5’ phosphate (activated B6) 25 mg Mixed carotenoids (as lutein‚ lycopene‚ zeaxanthin) Q: Can Similac Lower Iron Step Infant Formula cause constipation thiamine hydrochloride