l-carnitine side effect fishy odor trimethylamine Gut microbial metabolites for potentiating cancer therapy FISH ODOR SYNDROME (TRIMETHYLAMINURIA), Causes,

Online sources may be unregulated, unsafe, or ineffective

Tell your doctor or get medical help right away if you have any of the following signs or symptoms that may be related to a very bad side effect: Signs of an allergic reaction, like skin rash, hives with itching and red swollen blistered peeling skin with or without fever, wheezing, tightness in the chest or throat, trouble breathing, trouble swallowing, trouble talking, unusual hoarseness, or swelling of the mouth, face, lips, tongue, or throat

After five to seven days, the animal would appear emaciated and with vast ascitic signs

These can make it hard for your body to get enough B12