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Nutritional support for liver health

Support for a healthy liver
More than 290 million people worldwide are living with viral hepatitis unaware; keeping the liver healthy can bolster wellness.

Wednesday 28 July is World Hepatitis Day; this year’s theme is ‘Hep Can’t Wait.’ Recognised on the birthday of Dr Baruch Blumberg—who discovered the hepatitis B virus in 1967—Hepatitis Awareness Day is designed to raise awareness of this ailment.

Hepatitis is an inflammation of the liver, most commonly caused by viral infection, which can be acute or chronic in its impact. The WHO estimates 290 million people around the world are living with viral hepatitis, completely unaware that they are affected. There are five main hepatitis viruses, all of which can cause acute infection and inflammation of the liver; infection with the B, C or D viruses can result in chronic hepatitis. Types B and C cause 1.4 million deaths annually, and hep viruses cause two out of three liver cancer deaths across the world.

Transmission of A and E are through contaminated food or water; B and C via blood or bodily fluids; and D only in people infected with B via blood contact. There are vaccines for some, but not all hepatitis viruses, and medication can be effective in treatment and management.

There are also lifestyle choices that can support a healthy liver, potentially improving its ability to stand up to infection. The most obvious is to avoid alcoholic beverages, but others include increasing hydration in the diet, exercising to help maintain a healthy weight, and avoiding processed and red meat. On the plus side, researchers have found that coffee appears to benefit liver health, with the Cleveland Clinic reporting several cups per day of caffeinated coffee benefiting those with liver issues or looking to improve their liver health.

Consumers should also make informed decisions on the medications and supplements they consume, as the liver is the main organ for detoxification. The US FDA has listed more than 900 drugs, toxins, and herbs as injurious to the liver. There have been concerns about single herbs, particularly those that contain pyrrolizidine alkaloids (i.e., comfrey, butterbur), as well as chaparral, germander, and others. However, there are also multiple natural ingredients that may support liver health.

  • Milk thistle has been used for centuries for liver ailments, and milk thistle extract standardised to silymarin is listed in the German Commission E monographs as a hepatoprotectant.
  • Used for its ability to stimulate bile production, artichoke leaf has a history of use in European medicine as a digestive aid; Chris Kilham explains the benefits come from the combination of its actives cynarin and chlorogenic acid.
  • Lactoferrin, a protein found in high levels in colostrum, regulates iron absorption and also fights infection. Researchers from the University of Rome recently cited lactoferrins’ ability to block viral entry into host cells, positioning it as a powerful antiviral compound.
  • The powerful antioxidant glutathione is produced in the liver and is involved in multiple processes in the body related to immune health and tissue repair, among others. In a review out of the University of Pavia, researchers noted changes in glutathione content contribute to pathogenesis of many liver diseases, and suggest supplementation could be beneficial for hepatic health.
  • Selenium plays an important role in maintaining thyroid hormone levels and protecting the body from both oxidative damage and infection. Combined with other dietary micronutrients, it may play an important adjuvant therapeutic role in viral infections.
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