bpc-157 negative effects BPC-157: Tendon Repair and More BPC-157: Experimental Peptide Creates Risk
Description
Development of auto-antibodies Some cobalamin preparations in rare cases can stimulate an allergenic response where there is development of antibodies to the cobalmin injected
Age is another factor to consider
b12deficiency.info/signs-an
If anyone in your blood family has an autoimmune condition it's more likely (but not definite) that you could develop one also (this includes the Hashimtos thyroiditis that Marz has previously mentioned)
