Psyllium is
typically available as either black
or blond psyllium; however
blond psyllium has more applications
for health than the black
variety. The information in this
article is geared toward blond
psyllium, as the majority of
psyllium products are comprised of
this type.
Blond psyllium is
most often used for constipation,
for softening stools in people with
hemorrhoids, fissures, pregnancy, or
after surgery. Psyllium is also used
as a mild bulking agent, and can be
applied in cases of loose stools,
irritable bowel syndrome, and
colitis.
In addition to its
actions on the bowels as a dietary
fiber, psyllium is useful in
diabetes, for lowering blood lipids,
high blood pressure, and as topical
treatment for abscesses.
Parts Used
The medicinal parts of
psyllium used are its tiny seeds
and the husk surrounding them.
The
seed and husk, when immersed in a
liquid environment, absorb the fluid
to form a gel-like substance. [1]
Psyllium is known as a water-soluble
fiber, and when swallowed will form
this gel in the intestines. Oftentimes,
purified psyllium seed is
available; this consists of only the
seed husk, with the inner seed parts
removed. There is some concern that
the inner seed components (endosperm
and plant embryo) are responsible
for some psyllium allergy. [2]
Psyllium Uses
Psyllium has several
well-documented uses in
medicine. One of the best-known uses
for psyllium is treating
constipation. Psyllium seed,
when it enters the digestive tract,
is capable of absorbing large
amounts of water and acting as a
bulking and softening agent for the
stool. [3]
Psyllium has been shown to be
comparable to other stronger
laxative and stool softening agents.
[3,
4]
Psyllium is
effective at lowering blood
cholesterol in persons with mild to
moderate elevations. When taken in
amounts close to 10 to 12 grams per
day, total cholesterol was lowered
in subjects by roughly 3% to 14%,
while low-density lipoprotein (LDL)
cholesterol was lowered by 5% to
10%. [5,
6]
Based on price and its clinical
effects at treating blood lipids,
psyllium is perhaps one of the most
cost effective medicines in this
regard.
For treatment of
diabetes, psyllium seed
husk has the ability to assist the
body in lowering blood glucose
levels following a meal, which then
leads to decreased insulin levels,
as well as total cholesterol and LDL
cholesterol in patients with type 2
diabetes. [7,
8]
Psyllium is effective at lowering
blood glucose levels in type one
diabetics as well; effectively lowering blood glucose by
roughly 14% to 20% following a meal
in one particular study. [9,
10]
It is important to note that
psyllium does not lower blood
glucose levels unless they are high;
in other words, it will not lower
blood glucose levels in people
without this condition. [11]
For diarrhea
treatment, psyllium will slow
the digestive process by keeping
food in the stomach and large
intestine for a longer period of
time, therefore promoting an increase
in the thickness
of stool in chronic diarrhea. [12,
13]
Psyllium can also assist
in reducing blood pressure;
in one study it reduced systolic
blood pressure by roughly 8 points
and diastolic by about 2 points. [14]
In conditions such as
irritable bowel syndrome (IBS) and
ulcerative colitis, psyllium
works well as an adjunctive
treatment. In IBS, psyllium seems to
relieve constipation symptoms,
decreasing associated abdominal pain
and diarrhea that often occurs. [15]
Similarly, in patients with
ulcerative colitis, psyllium can
relieve symptoms of abdominal pain,
bloating, diarrhea, constipation,
urgency, and feeling of incomplete
stool evacuation. [16]
Typical dosing of
psyllium seed ranges from,
roughly, 5 to
30 grams per day. When taken in larger
amounts, it should be administered in divided
doses throughout the day. Caution
should be used when taking psyllium
to ensure adequate intake of water
at the same time. Choking on
expansive seeds has been a concern
as well. Although chances are
small,
increasing water may assist in
optimizing the benefits of
psyllium seed.
|
Psyllium Toxicities and
Contraindications |
Psyllium Side effects
Taking psyllium may
lead to abdominal cramping,
diarrhea, constipation, nausea, and
flatulence. There is concern that
if not taking with adequate water,
psyllium may lead to bowel
obstruction or difficulty swallowing
in those with swallowing
dysfunction. Side effects may be
avoided if the dosages are minimal
at first, and gradually increased.
Medical literature
suggests that psyllium is
allergenic select individuals.
This is not uncommon as nearly all
substances demonstrate the potential
for allergic reaction. This risk
varies from one substance to
another, and some products now carry labels stating
that they contain psyllium and may
therefore lead to such adverse
reactions. [17]
Psyllium General interactions
(supplement, herb, food, lab)
Psyllium may decrease
iron absorption. [18]
Psyllium is thought to decrease the
absorption of riboflavin (vitamin
B-2) as well, although the amount
that it does is considered
clinically negligible. [19] As with all forms of fiber,
supplements should be taken at
different times as fiber acts as a
‘binder' in the intestines and can
prevent or inhibit the absorption of
various substances from the
gut. This applies to herbal medicines as
well; fiber may bind with them and
decrease their efficacy.
Lab tests: taking
psyllium can decrease cholesterol
and LDL levels in the blood, leading
to lower test results. Psyllium can
lower post-prandial (after eating)
blood glucose levels and alter test
results as well.
Psyllium Drug interactions
Psyllium may alter
absorption of several different
types of drugs. Again, being a
fiber, psyllium will
slow the absorption of these substances from
the intestines if taken
together. Before taking psyllium with a
pharmaceutical medication, one
should check to see if there are any
existing contraindications. Slowed absorption
of drugs from the gut may lead to
decreased drug efficacy.
Disease conditions
-
People with
allergies should use caution
when taking psyllium, as it
may cause allergic reactions in
certain people that are prone to
psyllium allergy.
-
Diabetics:
As mentioned, psyllium
can lower blood sugar. While this
is considered a positive effect
amongst diabetics, it may require that
the dosing of pharmaceuticals used
for diabetes treatment be altered.
-
Gastrointestinal:
People with narrowed GI tracts,
history of fecal impaction, or
spastic bowel should avoid
psyllium, as they may be
susceptible to blockage. [20]
-
Phenylketonuria:
This is a condition in which
certain people are unable to
metabolize the amino acid
phenylalanine. Some psyllium
products are sweetened with aspartame (Nutrasweet), which
contains phenylalanine. [21]
The following table lists various
products that contain a safe and
reliable source of Psyllium:
|
Manufacturer |
Ingredient |
Amount |
US RDA |
Learn More |
|
NSI |
Psyllium Husks |
2,625mg |
-- |
Click Here
 |
|
Nature's Way |
Psyllium Seed (Plantago Ovata) |
610mg |
-- |
Click Here
 |
|
GNC
|
Psyllium Seed Husk Powder (Plantago
ovata) |
500mg |
-- |
Click Here
 |