Health Benefits of Japanese Knotweed



February 27, 2020

With all the negative press that Japanese knotweed has received in recent years, isn't it about time we took a closer look at this invasive weed? It may come as some surprise that Japanese knotweed is edible, and rich in a range of beneficial vitamins

Vitamin Rich Japanese Knotweed

If you are a subscriber to alternative medicines then you may already be aware that Japanese knotweed can be a positive addition to your diet.

It is a great source of Resveratrol – which works like an antioxidant, but Japanese Knotweed also contains vitamin A and C, potassium, phosphorus, zinc and manganese. 

How these Vitamins aid the Human Body

Resveratrol - There has been much talk about the health benefits of this antioxidant type compound (from a group known as polyphenols). However, the jury is still out on what level of positive affect Resveratrol can have in relation to disease and disorders such as Alzheimer’s, diabetes, heart disease, cancer.  With most of the research articles we reviewed stating: ‘it may’, or ‘it is believed to’.  But there is something here, so read on!   

Vitamin A helps with eye health, bone health, and supports a healthy immune system.

Vitamins C is also an antioxidant, helps reduce inflammation, and it has been said to help lower blood pressure too.  

Potassium offers many benefits to humans if taken on a regular basis, these include regulating the heartbeat, reducing the risk of a stroke, keeping blood pressure at a healthy level, and assisting with heart and kidney problems including kidney stones.

Phosphorus is required to support healthy bones and teeth, it may also help to reduce the risk of a stroke, heart disease, and lower blood pressure too.

Zinc helps boost the immune system, so it’s great for colds and flu.  It has anti-inflammatory qualities too, which can help improve skin issues such as acne. It’s also beneficial to brain function and mood, and it is said to help those with depression for this reason.      

Manganese is an antioxidant and anti-inflammatory. It is beneficial to bone health, and can also aid in regulating blood sugar, making it an ideal supplement for diabetes suffers. 

Antioxidant, Anti-Inflammatory Benefits  

In its native countries, Japanese knotweed has been used for centuries to treat ailments such as respiratory infections but now researchers are investigating treating diseases and disorders such as: 

  • Cancer
  • Diabetes
  • Digestive Health
  • Cognitive Disorders
  • Bone & Teeth Health
  • and more!

It will no doubt take some time to fully understand what, if any, long term effects Japanese Knotweed could have on these and other health issues.  So in the meantime, we have found this healthy Japanese knotweed smoothie recipe by Sharon Bainbridge that could help improve your general health, improve brain function, and relieve inflammation.  A novel way to get rid of that invasive Japanese Knotweed! 

Japanese Knotweed Smoothie Recipe

    • 10 Japanese knotweed leaves 
    • 1 organic banana (cut into chunks) 
    • 1 organic orange (juice only) 
    • 1/2 a cup of water
    Wash the Japanese knotweed leaves in water and place in blender.
    Add the orange juice, banana and water.  
    Blend until smooth, and serve.  

    *Remember that Japanese Knotweed is highly invasive, so be sure to discard any remaining leaves in the appropriate manner to avoid creating a new infestation!