Methionine Know your Amino Acids fact sheet: Full name Methionine 3 letter name Met 1 letter name M What you see: What a biochemist sees: Speciality – Sources (animal) Meat, eggs, fish Sources (plant) sesame seeds, Brazil nuts, cereal grains Chemical formula C5H11NO2S Essential X Non-essential – Hydrophobic X Hydrophilic (neutral) – (positive) – (negative) – Learn more… <- GO BACK