Chromium
The trace mineral,
chromium, is often low in patients
with diabetes, hypoglycemia, and
obesity. Chromium can be depleted
by eating a diet high in both refined
sugar and white flour products, and
also by the lack of exercise. Chromium
assists in the regulation of blood glucose levels,
aids in decreasing insulin resistance, aids
in weight loss, and helps to stabilize the
body's metabolism (2,
3).
Studies
have shown that chromium
supplementation can decrease fasting
blood glucose levels, improve
glucose tolerance, lower insulin
levels, and decrease total
cholesterol and triglyceride levels
in patients with diabetes (4,
5). Diabetic patients can supplement
their diets with different forms of
chromium, including chromium polynicotinate, chromium picolinate,
GTF (glucose tolerance factor)
chromium, or chromium-enriched yeasts
(6). Changes in insulin requirements
may occur with chromium therapy,
therefore,
physician monitoring is advisable.
Vitamin C
Vitamin C is often
low in patients with diabetes,
because the transport of Vitamin C into cells is
facilitated by insulin (7,
8).
Vitamin C lowers blood glucose
levels, strengthens capillaries,
aids wound healing, protects against
free radicals, and strengthens the
immune system. Studies have shown
that the supplementation with
Vitamin C can
also reduce sorbitol accumulation and
glycosylation of proteins (9-11). This is especially significant,
since sorbitol accumulation and
glycosylation of proteins are linked
to diabetic complications including
eye and nerve diseases (12).
Niacin or niacinamide
(Vitamin B3)
Niacin, or niacinamide
(Vitamin B3) supplementation, may be
beneficial in diabetic patients. Studies suggest that
dietary supplementation
with niacinamide can prevent type 1
diabetes from developing or, if
given soon enough at the onset of
the condition, helps to slow the destruction
of insulin-producing cells in the
pancreas (13). Due to niacin's side
effects at high doses (skin
flushing, gastric irritation,
nausea, and liver damage), the safest
form of niacin is flush-free niacin
(inositol hexanicotinate).
Vitamin E
Vitamin E may be
beneficial in diabetic patients. Studies show that vitamin E
supplementation helps to enhance
insulin sensitivity and glucose
transport, reduces the risk of heart
failure, and prevents other diabetic
complications (14-17).
Magnesium
Magnesium levels are
often low in diabetic patients. Magnesium is involved in glucose
metabolism. Studies report that
its supplementation may prevent diabetic
complications, such as retinopathy
and heart disease (18-21).
Zinc
Zinc levels are often
deficient in diabetic patients. Zinc helps
to regulate insulin
metabolism, and clinical study has found
that zinc supplementation improves
insulin levels and poor wound
healing (22-24).
Alpha-lipoic acid
(ALA)
Alpha-lipoic acid
(ALA) is an antioxidant that may be
beneficial in diabetic patients. Studies have determined that ALA
supplementation improves insulin
levels and may prevent diabetic
complications such as retinopathy
(25-29).
Carnitine
Carnitine is a
vitamin-like nutrient that boosts
energy production through the
breakdown of fats by the
mitochondria. Carnitine also helps
to regulate
insulin metabolism and may prevent
diabetic complications such as
neuropathy (30,
31).
Vanadium
Vanadium, a trace
mineral, may be beneficial in
diabetic patients. Studies have
found that vanadium supplementation
improves blood glucose levels, and
may help slow the destruction of
insulin-producing beta cells in the
pancreas (32-35).
Essential Fatty
Acids (Evening primrose oil, Borage
Oil, Black Currant Oil)
Evening primrose oil,
a gamma-linolenic acid (GLA), may be
beneficial in diabetic patients.
Diabetes is associated with a
disturbance in GLA metabolism, and GLA
supplementation, in the form of
evening primrose, borage, or black
currant oils, may be beneficial for
proper nerve function. It may
also prevent diabetic complications,
like neuropathy (36-42).
Gymnema
Gymnema sylvestre, a
native plant found in India, has
been traditionally used for the
natural treatment of
diabetes. Studies have found that gymnema supplementation may
improve
insulin levels, decrease blood
glucose, and may help to regenerate the
insulin-producing beta cells in the
pancreas (43-46).
Bitter melon (Momordica
Charantia)
Bitter melon, also
known as balsam pear or karela
fruit, is a tropical fruit found in
Asia and South America. It has
a long-standing tradition for the treatment of
diabetes. Studies have found that
bitter melon contains an
insulin-like polypeptide that may
decrease blood glucose levels and
improve insulin levels (47-55).
Bilberry (Vaccinium
Myrtillus)
Bilberry has a long
tradition in the treatment of
diabetes. Bilberry flavonoids (anthocyanosides)
have potent antioxant effects.
Anthocyanosides may provide for a decrease
in blood glucose levels,
strengthening of capillaries, and
assist in the prevention of
diabetic complications such as
retinopathy (56,
57).
Biotin
Biotin, a vitamin
B-complex nutrient, aids in glucose
metabolism, improves insulin
sensitivity, and increases
glucokinase activity; the enzyme
responsible for the first step of
glucose utilization (58). Studies
show that biotin supplementation may
decrease blood glucose levels and
prevent diabetic complications such
as neuropathy (59-61). Since
changes in insulin requirements may
occur with high doses of biotin,
physician monitoring is advisable.
N-acetyl cysteine (NAC)
N-acetyl cysteine (NAC),
is a potent antioxidant and precursor for the synthesis of
glutathione (a detoxifying agent). Supplementation with NAC may have
beneficial effects for diabetics,
such as preserving beta cell
function in the pancreas (62).
Coenzyme Q10 (CoQ10)
Coenzyme Q10 (CoQ10)
is an antioxidant that boosts
cellular energy production in the
mitochondria, the cell's energy
powerhouse. Supplementation with
CoQ10 may have beneficial effects
for diabetics, such as preserving
beta cell function in the pancreas
and controlling blood glucose levels
(63,
64). For enhanced results,
it is often recommended that CoQ10
be taken with other
antioxidants.
Carnosine
Carnosine, an amino
acid peptide, can reduce the toxic glycosylation of proteins. This is
especially significant, since glycosylation of proteins is linked
to diabetic complications of the eye
and nervous system (65) .
Silymarin
Silymarin, an
antioxidant flavonoid derived from
the milk thistle herb, may have
beneficial effects for diabetics. Supplementation with sylmarin has
been found to lower blood glucose
levels, improve liver function, and
reduce free-radical activity (66).
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