hi,my 11 yo son has (MTHFR_677 , MTRR_66 , MTR_2756 ) heterozygious
mutations, the Doctor has discriped folic acid, but i have read that it is wrong to take folic acid in this case, i do not know what to do. He has normal MTHFR_1298, protein c 108%, protein s 106%, antithrombin III(AT-III)105%, factor v leiden 2.