The cannabis plant is full of antioxidants. The US Federal Government
even has a patent to the effect. Sounds great, right? But why should we
care?
You’re probably a bit like me. You know that antioxidants
are good for your health; turn to any article on nutrition and you’ll be
regaled by a list of foods fit to brimming with the little fellas. But
sometimes it feels like little more than a marketing ploy to get us to
buy more stuff: high in antioxidant = must buy, but not sure why.
But
since writing about medical cannabis, I keep seeing a recurring theme
appear at a root of many illnesses and that is mitochondrial oxidative stress.
Ok,
so it’s got the word stress in it, so it’s most probably going to be
bad, and oxidative means rusty. So what? Our bodies are stressed out and
full of rust? Sounds more like something that would happen to the tin
man from the Wizard of Oz.
What is oxidative stress?
But
no, seriously, oxidative stress is something that as we get older
happens to our bodies, and the rate at which it happens actually
determines how quickly we age and what age related illnesses we get.
So what is it exactly?
According
to Nishi Whiteley in her book, ‘Chronic Relief: A Guide to Cannabis for
the Terminally & Chronically Ill’, oxidative stress is “a natural
process that occurs at the cellular level. When energy is created in the
cell, waste products called free radicals are generated. Free radicals
also result from stress and exposure to environmental toxins such as
cigarette smoke and smog as well as ingested toxins such as fluoride.”
Free radicals – biological bad guys
Ok, ‘free radicals’ – so there’s another one of those terms that we’ve all heard of, but probably have no idea what they are.
Having
studied political science, if something is called a ‘free radical’, it
sounds like it should be pretty cool. Maybe a socialist libertarian, or a
Che Guevara revolutionary type. But in biological terms, free radicals
are actually quite destructive and more like molecular kleptomaniacs.
They are incomplete molecules that rampage through the body stealing
electrons from other proteins, causing damage to our DNA and other cell
structures.
Osteopathic
physician and author Dr Mercola describes how this can “create a
‘snowballing effect’ – as molecules steal from one another, each one
becomes a new free radical, leaving a trail of biological carnage.”
The
result: what Mercola terms a sort of ‘biological rusting’ where there
is too much oxygen in our tissues, causing the body to perform poorly
and leading to a host of age related diseases such as chronic
inflammation, cancer, neurodegenerative diseases like Alzheimer’s and
Parkinson’s, is psoriasis an autoimmune condition, heart disease and strokes, to name
just a few.
That’s not to say oxidative stress is bad per se. It
can serve to promote what Project CBD research associate Adrian
Devitt-Lee calls “a cellular housecleaning,” in which “faulty cell parts
– misfolded or aggregated proteins, dysfunctional mitochondria, etc. –
are removed and replaced by newer, better-working components.”
However
according to Devitt-Lee there is a tipping point where healthy house
cleaning turns into cellular damage. “Too much oxidative stress is a
signal for the cell to destroy itself in a regulated way, a process
called apoptosis. It’s as if there’s a tipping point when oxidative
damage exceeds the capacity of a cell to repair itself, so the cell
pivots from survival mode and commits suicide for the betterment of the
team.”
Antioxidants protect us from free radical damage
Our
body’s response to mitigate the damage wreaked by free radicals is to
produce – you guessed it – antioxidants. These act as electron donors to
free radicals, preventing more electron pilfering from neighbouring
molecules, thus protecting the body from damaging levels of oxidative
stress.
We produce our own antioxidants in the body such as
Glutathione, Alpha-Lipoic Acid (ALA) and CoQ10. Probably at some point
these internally generated antioxidants were enough, but as causes of
oxidative stress from external factors such as pollution, chemicals in
our food and levels of emotional stress rise, we ourselves don’t produce
enough antioxidants and must turn to other sources to give ourselves
that protective antioxidant shield.

Cannabis plant – a powerful source of antioxidants
Food
is a tremendous source for the ‘antioxidantally challenged’ amongst us,
in particular fruits, nuts, seeds and vegetables. Anything containing
vitamins C and E will give an antioxidant boost, but did you know that
the cannabis compound CBD has been found to be just as powerful, if not
even more so, than these household vitamin names?
This is proving
particularly of interest in the field of research into cannabinoids and
neurodegenerative disorders such as Alzheimer’s and Parkinson’s.
Cannabinoids protect our brains against age-related toxicity
Brain
cells use a huge amount of energy to transmit information throughout
the body, with all that activity creating high levels of oxidative
damage, loss of functioning and symptoms of age-related decline.
An
ageing brain also has a tendency to accumulate excessive levels of
glutamate, a neurotransmitter that is involved with nerve cell
signalling. When glutamate causes cellular damage, it becomes an
excitotoxin, with excitotoxicity viewed as a potential cause of many
neurodegenerative diseases of the central nervous system.
In one
study carried out on rats, the cannabinoid Cannabidiol was “was
demonstrated to reduce hydroperoxide toxicity in neurons. In a head to
head trial of the abilities of various antioxidants to prevent glutamate
toxicity, cannabidiol was superior to both alpha-tocopherol and
ascorbate in protective capacity.”

Neuroinflammation
can both be a cause, and a consequence, of chronic oxidative stress and
is commonly experienced neurodegenerative diseases.
In a paper
published in the British Journal of Pharmacology, it found that CBD can
reduce neural inflammation in mice injected with amyloid-β (Aβ), the
protein that scientists believe leads to neuronal cell death in
Alzheimer’s.
While research carried out in 2014 at the University
of South Florida showed that extremely low doses of THC actually reduces
amyloid-β (Aβ) production.
“THC is known to be a potent
antioxidant with neuroprotective properties, but this is the first
report that the compound directly affects Alzheimer’s pathology by
decreasing amyloid beta levels, inhibiting its aggregation, and
enhancing mitochondrial function,” said study lead author Chuanhai Cao,
PhD of the study.
By increasing mitochondrial function it also means a healthier brain due to a better energy supply and improved signalling.
US Government patents cannabinoids as antioxidant but still denies medicinal use
In
fact it’s the cannabis plant’s antioxidant content and potential to
protect the brain from neurodegenerative disease that has led to one of
the greatest contradictions in the history of medical cannabis.
Back in 2003 the US Government published a patent entitled ‘Cannabinoids as antioxidants and neuroprotectants,’
on the basis that this antioxidant/ neuroprotectant quality be a novel
discovery. It states that cannabinoids are “useful in the treatment and
prophylaxis of wide variety of oxidation associated diseases, such as
ischemic, age-related, inflammatory and autoimmune diseases.”
It
goes on, “the cannabinoids are found to have particular application as
neuroprotectants, for example in limiting neurological damage following
ischemic insults, such as stroke and trauma, or in the treatment of
neurodegenerative diseases, such as Alzheimer’s disease, Parkinson’s
disease and HIV dementia.”
CBD gets a particular mention in the
patent saying, “non-psychoactive cannabinoids, such as cannabidiol, are
particularly advantageous to use because they avoid toxicity that is
encountered with psychoactive cannabinoids at high doses useful in the
method of the present invention.”
One would imagine that this infamous Patent US 6630507
would have marked a federal reclassification of the cannabis plant. But
alas not, as it still sits alongside heroin, LSD and ecstasy as having
“no currently accepted medical use and a high potential for abuse.”
Go figure!
Cannabis – an antioxidant and much, much more
It’s
clear that cannabis isn’t the only plant source of antioxidants around,
which is great if you happen to live in a part of the world where
cannabis products aren’t legally available.
However, cannabis,
through its unique combination of cannabinoids, terpenes, flavonoids etc
is possibly the most complete plant therapeutically, with its
antioxidant potential being just one tool in the box. Combine that with
the plant’s anti-inflammatory properties and ability to bring
homeostasis to the body through the endocannabinoid system, and it’s
clear there’s more health benefits to cannabis than taking any other
off-the-shelf antioxidant.
And for anyone already taking plant
cannabinoids like CBD, it’s reassuring to know that as well as
reportedly helping conditions like anxiety, chronic pain, epilepsy, even
the US federal government suggests you may also be protecting yourself
against the onset of age-related disease.
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