Something else to be aware of is that many B vitamins are derived from and/or contain a form of yeast. If mold/candida is an issue for you, then it would be good to get a yeast-free version of B vitamins.
Also, you may need other B vitamins besides what is contained in the Metanx (which contains only Folic Acid, B6, and B12). There are also B1 (Thiamine), B2 (Riboflavin), B3 (Niacin), B5 (Pantothenic Acid), Biotin, and possibly other supplements that are also required for optimum health. Blood sugar levels may also be unstable without supplementing Chromium. Alpha Lipoic Acid can also help stabilize blood sugar. A stable blood sugar level can reduce/prevent sugar cravings.
Chronic Lyme Disease, Chronic Bartonella (clinical dx only), Gluten & Sulfite Sensitivity, Many Food/Inhalant/Medication/Chemical Allergies & Intolerances, Asthma, Gut issues (dysmotility, non-specific inflammation), UCTD ("Secondary Lupus-Like Syndrome"), Osteoporosis, chronic Lymphopenia, etc.; G-Tube; Currently weaning off TPN.
Meds: Pulmicort, IV Doxycycline, Heparin (to flush PICC line), Claritin, Singulair, Domperidone, Colloidal Silver (topically & nasally), probiotics, Liver support herbs, Ailanthus, digestive enzymes, homeopathy.