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The Health
Benefits of Acai Berry Supplements
An exploration of the health benefits of acai supplements. What do we
know? What is hard fact? What is guess work?
Like
many of the "Super Fruit" nutritional supplements available today, what
we know about acai supplements piggy backs on research into the
phytochemicals (this just means 'chemicals obtained from plants') it
contains.
For example, research shows that:
"Phytochemical 'A' helps prevent disease 'Z' ". Provided that research
is
sound, we just need to find a good natural source of A. We then begin
supplementing our diet and start to experience the health benefits
claimed for 'A'.
I'm researching and writing a page on the quality
of the research on phytonutrients ('plant chemicals that have a
nutritional value'), but it'll take a while.
[Want to know how
to find out when they're written? Please sign up for the RSS feed to
stay in touch with this site. Not sure what that means? There's an
explanation by the orange button.]
This page focuses on the claims made for the health benefits of acai
berry skins - the source that native south Americans have used for
generations.
The health benefits of acai berry skins
If
you've taken the warnings seriously that the destruction of the
rain forests is
going to deprive us of many potential sources of beneficial drugs, you
won't be surprised at the acai benefits story ...
Like many
nutritional supplements obtained from native cultures, the Brazilian
Indians call the plant "The Tree of Life". This often indicates a plant
revered for its healing or vitality building benefits.
Native
peoples of the Amazon rain forest strip the deep purple skin from the
pit/stone. They use the skins to make a puree that is usually eaten
warm over grains, cereals or fruit.
This deep purple skin
contains phytonutrients called anthocyanins. They are the same
chemicals that give red wine and blueberries their color. You may know
that red wine and blue berries have both been recommended for their
health benefits.
The benefits of acai rest on the same reasoning
- these anthocyanins have powerful antioxidant properties (click the
button on the navigation bar if you're not sure about what this means).
The thing is acai berry
pulp contains 30 times the amount of anthocyanins that red
wine contains.
And that's not all ...
Another of the key discoveries of nutritional science of recent years
is that we may be suffering from he absence of "Essential Fatty Acids"
(EFAs) in our diet.
We
all know we need fats and oils in our diet. Fats are hard at room
temperature, oils are liquid. To get a balanced diet, we need to eat
oils. For some
of our needs, the body can change one form of oil into another - but it
can't do this for all
the oils we need.
These fatty acids are called essential
because it's essential
our diet contains them. We can't manufacture these in the body.
You may have heard of these as omega-3, omega-6 and omega-9 fatty acids
Acai pulp contains nutritionally significant levels of omega-6 and
omega-9 fatty acids.
I'll
point out which health benefits of acai supplements are due to which
nutrients. Time to talk about the health benefits of this juice ...
Acai supplements and the blood and circulatory
system
Studies on anthocyanins show that they can help:
- improve blood circulation, decreasing high blood pressure
by
- relaxing blood vessels, and
- decreasing the "furring up" of arteries with
fatty deposits (called atherosclerosis)
- this decreases turbulence in circulating blood
- decreased turbulence helps to prevent blood clots
- clots in blood (this is the issue with
long-haul flights and people who lead inactive lives) may shift to the
heart and lungs, causing major problems and risk to life (and/or
health) from stroke
(blood clot or bleeding in the brain) and pulmonary embolism
(blood clot that travels to the lungs)
So prevention of these are potential benefits of acai supplements.
My father died as a result of long-term complications following a clot
that shifted from his leg and lodged in his lungs ... that all
started with a blood clot (a thrombosis) after a coach holiday.
So - please - do those exercises they give you on the 'plane
... and do the basics: walk, use the stairs, cycle. Get you heart
beating strongly for 20 - 30 minutes, several times a week. Not much
time? Put a pack on your back - carrying extra weight increases the
'work out.'
'Just do it!' ... but if you've been inactive ... gradually build up
the exercise levels, don't panic and rush into anything.
Benefits of acai to the immune system
Anthocyanins are immune system enhancers. In common with lots of
natural dietary supplements, they seem to encourage the immune system
to behave 'intelligently' ... or in a more balanced way
What does this mean?
Some immune system problems are caused by over activity of the
system; some are caused by under activity
of the immune system.
Under activity can lead to recurring infections and - in the long run -
probably contributes to risk of cancer (the immune system is
responsible for recognizing changes in cells and destroying those that
have changed).
Over activity can lead to auto-immune diseases - where the body's immune
system reacts as if the body's own (normal) cells and tissues were
'invaders'. Psoriasis and inflammatory bowel disease are two examples
of this kind of problem.
Over activity leads to allergies, where the immune system responds
aggressively to substances that most people tolerate (egs: pollen in
hay-fever; house dust and/or house dust mites in allergic rhinitis, or
chronic 'cold' symptoms).
Three benefits of acai, based on its anthocyanin-content, are
probably:
- enhanced resistance to viral infections (we
don't have many drugs against viruses - but the body has its own
defenses)
- decreasing severity of allergic reactions
- a possible cancer-prevention role: prevention of
potentially cancer-causing changes to cells and early recognition and destruction of cells
that have potentially cancer-causing changes
- prevention comes from the anti-oxidant effects
of anthocyanins
- destruction comes from the ability of a healthy
immune system to recognize and then eat dangerous cells (just like an
amoeba does - remember your biology lessons at school?)
Research carried out at the Federal University in Rio de
Janeiro, Brazil found that an
extract of acai - ie not the simple pulp itself - is
effective against a bacterium and a protozoan infection.
The bacterium Staphylococcus
aureus, the bug that causes "staph" infections responded
to treatment with this extract.
The protozoan parasite - a trematode or 'fluke' - that causes bilharzia
(scientific name: schistosomiasis) also responded to this extract. Note
these parasites are multi-celled organisms ... it often takes pretty
nasty drugs to deal with them.
I don't want to take this too far - an extract is partly along the way
to identifying and concentrating a particular substance in the plant.
This information supports the idea that one of the benefits of acai is
in defeating infections, but this level of potency is unlikely to be
available from simple acai supplements at normal nutritional levels.
Health benefits of acai supplements: the EFA
content
Another of the benefits of the acai berry comes from the levels of Essential Fatty Acids
it contains.
Basically, it lowers 'bad' cholesterol (LDL, or 'low density
lipoprotein') and increases levels of 'good' (HDL, or 'high density
lipoprotein) cholesterol.
Bad cholesterol causes those fatty deposits in blood vessels I talked
about before. Good cholesterol helps to prevent that build-up.
There's more here on HDL and LDL from the American Heart
Foundation.
This enhances some of the benefits to the circulatory system that are
provided by the anthocyanins present in the acai berry.
All-in-all the potential benefits of acai to the circulatory system are
significant, so if you've had circulatory problems like high blood
pressure, or perhaps have a family tendency to high levels of bad
cholesterol, acai supplements may well be worth a try.
As ever, do this systematically: get levels checked, change nothing else
in your diet, don't start any new medications, take the acai for three
months and get re-assessed by your practitioner.
If your taking medication for high blood pressure and the acai "works"
your blood pressure will come down. Watch out for light-headedness when
you stand up as a first sign ...
You may want to get a home blood pressure monitor (make sure it's
checked for accuracy). Test it yourself when you have had a recent
reading from your practitioner.
Another benefit of the EFAs in acai supplements (especially Oleic acid)
is its benefit to cell
walls.
Oleic acid:
- promotes health cell membranes, which in turn
- helps omega-3 oils penetrate cell membranes.
Oleic acid from acai helps to carry these important nutrients into the
cells
- helps cells to respond to circulating hormones
- helps substances that enable nerve cells to
communicate with each other, with muscles and with the brain
(neurotransmitters) function (I can see a potential benefit for
Parkinson's disease prevention here)
Benefits of acai in men's health
Acai is a member of in the same family of plants as saw palmetto, a
plant that has been used by native Americans and Mayans to treat a
variety of problems, including benign
prostatic enlargement (BPE).
It is used in modern herbal medicine to treat BPE - and acai shares
some of the same plant chemicals.
There is a potential benefit to men with BPE from acai.
More general benefits of acai supplements
The pulp contains:
- fibre - important to maintain a healthy bowel
and decrease risk of toxicity and colo-rectal cancer from constipation
- vitamin C - antioxidant; supports the immune
system
- vitamin E - antioxidant;
- a complex of amino acids
- valuable trace minerals
- 10 times the anthocyanins of red grapes
- 30 times the anthocyanins of red wine
My recommendation would have been to use the pulp (it tastes like a mixture of
berries and chocolate) in a form as close to the natural state - the form it's used in in Brazil.
But it seems that the benefits of acai are not available from all supplements. My article on acai antioxidants also contains important information on the power of different kinds of products to deliver the claimed benefits of acai antioxidant nutrients.
As part of a smoothie, or other proprietary drink or juice, you're just
not going to be sure about concentrations. Check for percentage
contents of "pure acai pulp" or something similar.
This article on the health benefits refers quite often to
antioxidants. You can check out the general background to antioxidants
and their impact on health here.

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