Can L Lysine Help With Menstrual Cycle?

Can L Lysine Help With Menstrual Cycle? Another group of amino acids (alanine, threonine, proline) lengthened the period by about 1 h. Smaller effects were produced by aspartic acid and leucine and no effects were caused by lysine, glycine, valine, and serine. Phenylalanine may shorten the period a small amount. When should I take lysine