New Zealand green-lipped mussels

The healing properties of NZ green lipped mussels

The healing properties of NZ green lipped mussels

​​Green-lipped mussels (Perna canaliculus) are native to the coastal waters of New Zealand and have been utilized both as a dietary staple and a medicinal product. Known for their distinctive green edge around the shell, these mussels have garnered attention for their potential health benefits, particularly in the field of nutritional medicine. This paper explores the nutritional properties, therapeutic uses, and pharmacokinetics of green-lipped mussels, with a focus on research-backed evidence for their efficacy in treating various conditions.

Nutritional Properties 

Green-lipped mussels are rich in essential nutrients, including proteins, omega-3 fatty acids, vitamins, and minerals. Key components include:

  1. Proteins: Green-lipped mussels provide high-quality protein, essential for tissue repair and muscle maintenance. They contain all essential amino acids, making them a complete protein source.
  2. Omega-3 Fatty Acids: These mussels are particularly noted for their high levels of eicosapentaenoic acid (EPA) and docosahexaenoic acid (DHA), omega-3 fatty acids known for their anti-inflammatory properties.
  3. Vitamins: They are a good source of vitamins, particularly Vitamin B12, which is crucial for nerve function and red blood cell formation, and Vitamin E, known for its antioxidant properties.
  4. Minerals: Green-lipped mussels are rich in minerals such as iodine, selenium, iron, and zinc. Iodine is essential for thyroid function, selenium has antioxidant properties, iron is crucial for oxygen transport in the blood, and zinc supports immune function.

Therapeutic uses

 

Research into the therapeutic uses of green-lipped mussels has identified several conditions that may benefit from their inclusion in the diet or as a supplement. 

1. Osteoarthritis and Joint Health

Green-lipped mussels have shown promise in the treatment of osteoarthritis due to their anti-inflammatory properties. Studies have demonstrated that supplementation can reduce joint pain and improve mobility. The omega-3 fatty acids, along with other bioactive compounds in the mussels, help in reducing inflammation in the joints, thus alleviating pain and stiffness associated with osteoarthritis.

Recent studies have provided more detailed insights into these benefits. For instance, a 2020 randomised controlled trial published in the Journal of Clinical Rheumatology investigated the effects of green-lipped mussel extract on patients with knee osteoarthritis. Over a 12-week period, participants who received the extract reported significant reductions in pain and improvements in joint function compared to the placebo group. The study attributed these benefits to the synergistic action of omega-3 fatty acids and other anti-inflammatory compounds found in the mussels.

2. Inflammatory Bowel Disease (IBD)

There is emerging evidence that green-lipped mussels may benefit individuals with inflammatory bowel disease, including conditions such as Crohn’s disease and ulcerative colitis. The anti-inflammatory properties of omega-3 fatty acids, combined with other bioactive components, may help reduce intestinal inflammation and promote gut health.

3. Asthma and Respiratory Conditions

Green-lipped mussels may also help manage symptoms of asthma and other respiratory conditions. The anti-inflammatory properties of omega-3 fatty acids can reduce airway inflammation, potentially leading to fewer asthma attacks and improved respiratory function.

4. Cardiovascular Health

The high levels of omega-3 fatty acids in green-lipped mussels contribute to cardiovascular health by reducing blood triglycerides, lowering blood pressure, and preventing the formation of arterial plaques. Regular consumption can thus support overall heart health and reduce the risk of cardiovascular diseases.

Background and Pharmacokinetics

Green-lipped mussels have been used by the indigenous Maori people of New Zealand for centuries, both as a food source and for their medicinal properties. The modern scientific interest in these mussels began in the 1960s when researchers noted that Maori populations had lower incidences of arthritis and other inflammatory conditions compared to other populations.

Composition and Active Compounds

The therapeutic effects of green-lipped mussels are attributed to several bioactive compounds:

  1. Omega-3 Fatty Acids: EPA and DHA, which are known for their potent anti-inflammatory effects.
  2. Glycosaminoglycans (GAGs): These compounds support joint health by maintaining the structural integrity of joint cartilage.
  3. Furan Fatty Acids (F-acids): Unique to marine organisms, F-acids exhibit strong anti-inflammatory properties.
  4. Proteins and Peptides: Specific proteins and peptides in green-lipped mussels may have immune-modulating effects.

 

Absorption and Metabolism

When consumed, the bioactive compounds in green-lipped mussels are absorbed in the small intestine. The presence of fats can enhance the absorption of omega-3 fatty acids. Once absorbed, these compounds are transported via the lymphatic system into the bloodstream, where they exert systemic effects.

Distribution

Omega-3 fatty acids and other bioactive compounds are distributed throughout the body, with a particular affinity for tissues with high inflammatory activity, such as joints and the gastrointestinal tract. The anti-inflammatory effects are mediated through several mechanisms, including the inhibition of pro-inflammatory cytokines and enzymes such as cyclooxygenase (COX).

Metabolism and Excretion

The metabolism of omega-3 fatty acids primarily occurs in the liver, where they are converted into various metabolites that retain anti-inflammatory properties. These metabolites are then distributed to tissues throughout the body. Excess omega-3 fatty acids and other compounds are excreted via the kidneys.

Green-lipped mussels are a rich source of essential nutrients and bioactive compounds with significant therapeutic potential. Recent research supports their use in managing conditions such as osteoarthritis, inflammatory bowel disease, asthma, and cardiovascular health. The pharmacokinetics of these mussels ensure that their bioactive compounds are effectively absorbed, distributed, metabolised, and excreted, making them a viable option in nutritional medicine. As research continues, the full scope of their health benefits will likely become even more apparent, solidifying their role in both traditional and modern medicinal practices.

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