Lysine Know your Amino Acids fact sheet: Full name Lysine 3 letter name Lys 1 letter name K What you see: What a biochemist sees: Speciality – Sources (animal) Meats, chicken, fish, eggs, milk Sources (plant) Beans, quinoa, amaranth Chemical formula C6H14N2O2 Essential X Non-essential – Hydrophobic – Hydrophilic (neutral) – (positive) X (negative) – Learn more… <- GO BACK