Do not use this product if you are taking antibiotics and/or nitroglycerin. Consult a health care practitioner prior to use if you have a liver disease, a kidney disease, a seizure disorder, kidney stones, cardiovascular disease, diabetes, cancer or a history of non-melanoma skin cancer, or if you are taking blood pressure medication or blood thinners. Zinc supplementation can cause a copper deficiency. Consult a health care practitioner prior to use if you are unsure whether you are taking enough copper. Keep out of reach of children. Allergens: Contains no artificial colours, preservatives, or sweeteners; no dairy, starch, sugar, wheat, gluten, yeast, soy, corn, egg, fish, shellfish, animal products, salt, tree nuts, or GMOs. Do not use if seal is broken. Each packet is sealed for your protection. For freshness, store in a cool, dry place.