Antronex contains bovine liver fat extract. Japanese researchers discovered a liver fat extract that was used to support the body’s normal detoxification mechanisms. Antronex is gluten-free. Suggested Use: Take 1 tablet per day or as directed. Serving Size: 1 Tablet Amount Per Serving Calcium ... 30mg Proprietary Blend ... 16mg Bovine liver fat extract and d-alpha tocopherol (vitamin E sunflower) Other ingredients: Calcium lactate, calcium stearate, and arabic gum. Warning: Accidental overdose of iron-containing products is a leading cause of fatal poisoning in children under the age of 6. Keep this product out of the reach of children. In case of accidental overdose, call a health care professional or poison control center immediately. This product contains naturally occurring Vitamin K1. All forms of vitamin K may interact with blood-thinning medications. If you are taking such medicines, please consult with your health care professional before taking this product. If you are pregnant or lactating, please consult with your health care professional before taking this product.