So sorry to hear you're going through this. Pain in the left arm and the back is always concerning, in terms of whether it could be heart related...
There are several different foods that start with the letter L! Here are some: Lamb chops, Lasagna, Lettuce, Lays Potato Chips, Lamb, Legumes, Lima beans, Linguine, Laffy Taffy, Lollipops, leeks, lemon, lime, Linzer tarts, Lindt chocolate, Liquorice, lychee berries, lentils, lucky charms, luna bars, liver, lard, liverwurst and Lean Pockets.
L-lysine may work the same way on virus that causes shingles, however UMHS cautions that this remains unproven. Sources. Nutritional medicine specialist Alan R. Gaby, M.D. explains that foods such as turkey, chicken, salmon, tuna, halibut, sardines, cheese, tofu and beans contain relatively high amounts of L-lysine and low amounts of L-arginine.