I know it is common for the typical American diet to be deficient in Zinc (and a bunch of other nutrients), not sure if it is common in Lyme though (wouldn't surprise me if it was...).
Garlic has zinc in it, which may be partially why it is so good for the immune system (Zinc is an anti-oxidant mineral that supports a healthy immune system).
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 trying to wean off TPN.
Meds: Pulmicort, IV Ceftazidime, Heparin (to flush PICC line), Claritin, Domperidone, Colloidal Silver (used topically), probiotics, Milk Thistle, Ailanthus, homeopathy.