24 Good Reasons Why You May Need Vitamin
Supplements
Many people believe that eating a well balanced
diet provides all the vitamins and minerals necessary for
good health.
In ideal circumstances, this is the case, but in reality
there are many reasons why you may need vitamin supplements to
cope with living in the twentieth century environment.
Taking vitamins when required is a safe method of optimizing
your dietary sources of nutrients, providing you follow the
instructions on product labels.
1. Poor Digestion
Even when your food intake is good, inefficient digestion
can limit your body’s uptake of vitamins. Some common causes of
inefficient digestion are not chewing well enough and eating
too fast. Both of these result in larger than normal food
particle size, too large to allow
complete
action of digestive enzymes. Many people with dentures are
unable to chew as efficiently as those with a full set of
original teeth.
2. Hot Coffee, Tea and Spices
Habitual drinking of liquids that are too hot, or consuming
an excess of irritants such as coffee, tea or pickles and
spices can cause inflammation of the digestive linings,
resulting in a drop in secretion of digestive fluids and poorer
extraction of vitamins and minerals from food.
3. Alcohol
Drinking too much alcohol is known to damage the liver and
pancreas which are vital to digestion and metabolism. It can
also damage the lining of the intestinal tract and adversely
affect the absorption of nutrients, leading to sub-clinical
malnutrition. Regular heavy use of alcohol increases the body’s
need for the B-group vitamins, particularly thiamine, niacin,
pyridoxine, folic acid and vitamins B12, A and C as well as the
minerals zinc, magnesium and calcium. Alcohol affects
availability, absorption and metabolism of nutrients.
4. Smoking
Smoking too much tobacco is also an irritant to the
digestive tract and increases the metabolic requirements of
Vitamin C, all else being equal, by at least 30mg per cigarette
over and above the typical requirements of a non-smoker.
Vitamin C which is normally present in such foods as paw paws,
oranges and capsicums, oxidizes rapidly once these fruits are
cut, juiced, cooked or stored in direct sunlight or near heat.
Vitamin C is important to the immune function.
5. Laxatives
Overuse of laxatives can result in poor absorption of
vitamins and minerals from food, by hastening the intestinal
transit time. Paraffin and other mineral oils increase losses
of fat soluble vitamins A, E and K. Other laxatives used to
excess can cause large losses of minerals such as potassium,
sodium and magnesium.
6. Fad Diets
Bizarre diets that miss out on whole groups of foods can be
seriously lacking in vitamins. Even the popular low fat diets,
if taken to an extreme, can be deficient in vitamins A, D and
E. Vegetarian diets, which can exclude meat and other animal
sources, must be very skillfully planned to avoid vitamin B12
deficiency, which may lead to anemia.
7. Overcooking
Lengthy cooking or reheating of meat and vegetables can
oxidize and destroy heat susceptible vitamins such as the
B-group, C and E. Boiling vegetables leaches the water soluble
vitamins B-group and C as well as many minerals. Light steaming
is preferable. Some vitamins, such as vitamin B6 can be
destroyed by irradiation from microwaves.
8. Food Processing
Freezing food containing vitamin E can significantly reduce
its levels once defrosted. Foods containing vitamin E exposed
to heat and air can turn rancid. Many common sources of vitamin
E, such as bread and oils are nowadays highly processed, so
that the vitamin E content is significantly reduced or missing
totally, which increases storage life but can lower nutrient
levels. Vitamin E is an antioxidant which defensively inhibits
oxidative damage to all tissues. Other vitamin losses from food
processing include vitamin B1 and C.
9. Convenience Foods
A diet overly dependent on highly refined carbohydrates,
such as sugar, white flour and white rice, places greater
demand on additional sources of B-group vitamins to process
these carbohydrates. An unbalanced diet contributes to such
conditions as irritability, lethargy and sleep disorders.
10. Antibiotics
Some antibiotics although valuable in fighting infection,
also kill off friendly bacteria in the gut, which would
normally be producing B-group vitamins to be absorbed through
the intestinal walls. Such deficiencies can result in a variety
of nervous conditions, therefore it may be advisable to
supplement with B-group vitamins when on a lengthy course of
broad spectrum antibiotics.
11. Food Allergies
The omission of whole food groups from the diet, as in the
case of individuals allergic to gluten or lactose, can mean the
loss of significant dietary sources of nutrients such as
thiamine, riboflavin or calcium.
12. Crop Nutrient Losses
Some agricultural soils are deficient in trace elements.
Decades of intensive agriculture can overwork and deplete
soils, unless all the soil nutrients, including trace elements,
are regularly replaced. This means that food crops can be
depleted of nutrients due to poor soil management. In one U.S
Government survey, levels of essential minerals in crops were
found to have declined by up to 68 per cent over a four year
period in the 1970’s.
13. Accidents and Illness
Burns lead to a loss of protein and essential trace
nutrients such as vitamins and minerals. Surgery increases the
need for zinc, vitamin E and other nutrients involved in the
cellular repair mechanism. The repair of broken bones will be
retarded by an inadequate supply of calcium and vitamin C and
conversely enhanced by a full dietary supply. The challenge of
infection places high demand on the nutritional resources of
zinc, magnesium and vitamins B5, B6 and zinc.
14. Stress
Chemical, physical and emotional stresses can increase the
body’s requirements for vitamins B2, B5, B6 and C. Air
pollution increases the requirements for vitamin E.
15. P.M.T
Research has demonstrated that up to 60 per cent of women
suffering from symptoms of premenstrual tension, such as
headaches, irritability, bloated ness, breast tenderness,
lethargy and depression can benefit from supplementation with
vitamin B6.
16. Teenagers
Rapid growth spurts such as in the teenage years,
particularly in girls, place high demands on nutritional
resources to underwrite the accelerated physical, biochemical
and emotional development in this age group. Data from the USA
Ten State Nutrition Survey (in 1968-70 covering a total of
24,000 families and 86,000 individuals) showed that between
30-50 per cent of adolescents aged 12-16 had dietary intakes
below two thirds of the recommended daily averages for Vitamin
A, C, calcium and iron.
17. Pregnant Women
Pregnancy creates higher than average demands for nutrients,
to ensure healthy growth of the baby and comfortable
confinement for the mother. Nutrients which typically require
increase during pregnancy are the B-group, especially B1, B2,
B3, B6, folic acid and B12, A, D, E and the minerals calcium,
iron, magnesium, zinc and phosphorous.
The Ten State Nutrition Survey in the USA in 1968-70 showed
that as many as 80 per cent of the pregnant women surveyed had
dietary intakes below two thirds of recommended daily
allowances. Professional assessment of nutrient requirements
during pregnancy should be sought.
18. Oral Contraceptives
Oral Contraceptives can decrease absorption of folic acid
and increase the need for vitamin B6, and possibly vitamin C,
zinc and riboflavin. Approximately 22 per cent of Australian
women aged 15-44 are believed to be on “the pill” at any one
time.
19. Light Eaters
Some people eat very sparingly, even without weight
reduction goals. US dietary surveys have shown that an average
woman maintains her weight on 7560 kilojoules per day, at which
level her diet is likely to be low in thiamine, calcium and
iron.
20. The
Elderly
The aged have been shown to have a low intake of vitamins
and minerals, particularly iron, calcium and zinc. Folic acid
deficiency is often found, in conjunction with vitamin C
deficiency. Fibre intake is often low. Riboflavin (B2) and
pyridoxine (B6) deficiencies have also been observed. Possible
causes include impaired sense of taste and smell, reduced
secretion of digestive enzymes, chronic disease and, maybe,
physical impairment.
21. Lack of Sunlight
Invalids, shift workers and people whose exposure to
sunlight may be minimal can suffer from insufficient amounts of
vitamin D, which is required for calcium metabolism, without
which rickets and osteoporosis (bone thinning) has been
observed. Ultraviolet light is the stimulus to vitamin D
formation in skin. It is blocked by cloud, fog, smog, smoke,
ordinary window glass, curtains and clothing. The maximum
recommended daily supplement intake of vitamin D is 400
i.u.
22.
Bio-Individuality
Wide fluctuations in individual nutrient requirements from
the official recommended average vitamin and mineral intakes
are common, particularly for those in high physical demand
vocations, such as athletics and manual labor, taking into
account body weight and physical type. Protein intake
influences the need for vitamin B6 and vitamin B1 is linked to
kilo joule intake.
23. Low Body Reserves
Although the body is able to store reserves of certain
vitamins such as A and E, Canadian autopsy data has shown that
up to thirty percent of the population have reserves of vitamin
A so low as to be judged “at risk”. Vitamin A is important to
healthy skin and mucous membranes (including the sinus and
lungs) and eyesight.
24. Athletes
Athletes consume large amounts of food and experience
considerable stress. These factors affect their needs for
B-group vitamins, vitamin C and iron in particular. Tests on
Australian Olympic athletes and A-grade football players, for
example, have shown wide ranging vitamin deficiencies.
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About The
Author
Contributed by David Exon,
Nutritional Consultant, who has many more
inspiring diet tips, diet blog, health articles
and motivation resources on his website
http://www.beautiful-body-ideal-weight.com
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