| Nutrition Tips:
Nutrient Overdose and Your Health
Balanced
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Deficiencies | Nutrient Overdose
Supplementation
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Too much of a good thing can sometimes be as
bad as not enough of it.
The UL of a micronutrient is its tolerable
upper intake level. Exceeding UL creates a risk of
overdose, although a much higher concentration may be required
to cause some of the disorders listed below.
Some micronutrients are measured in IU (International
Units), others in mg (milligrams) or mcg (micrograms).
|
VITAMIN |
UL |
Conditions Resulting From Overdose |
|
Vitamin A |
10,000 IU |
Liver damage,
hair loss, blurred vision, headaches |
|
Vitamin B3 |
35 mg
|
Jaundice,
liver damage, ulcers, skin rashes, high blood sugar,
high uric acid, cardiac arrhythmia, hot flashes |
|
Vitamin B6 |
100 mg |
Numb mouth
and hands, difficulty walking |
|
Vitamin B9 |
1 mg |
Digestive,
sleep and skin disorders, low energy, insomnia, seizures |
|
Vitamin C |
2,000 mg |
Stomach upset,
diarrhea |
|
Vitamin D |
2,000 IU |
Buildup of calcium deposits,
impaired heart and other muscle functions, kidney stones,
vomiting, muscle weakness |
|
Vitamin E |
1,000 IU |
Impaired
blood clotting (can cause bleeding to death) |
|
MINERAL |
UL |
Conditions Resulting From Overdose |
|
Boron |
20 mg
|
Skeletal
and genital abnormalities, gastrointestinal disturbances,
anemia, dermatitis, edema, seizures, fatigue, cold-like
symptoms |
|
Calcium |
2,500 mg
|
Fatigue,
depression, confusion, anorexia, nausea, vomiting, constipation,
pancreatitis, increased urination, kidney stones, bladder
stones, cardiac arrhythmia |
|
Chloride |
3,600 mg |
Fluid retention,
high blood pressure, greater risk of some cancers, cough,
choking, chest pains, asthma, headaches, blue discoloration
of skin, nausea, vomiting |
|
Choline |
3,500 mg |
Nausea, vomiting,
fishy body odor |
|
Copper |
10 mg |
Liver disease,
vomiting, diarrhea |
|
Fluoride |
10 mg |
Increased
bone fractures, fluorosis (discoloration / mottling,
pitting of teeth), osteosclerosis, tinnitus, hearing
loss, stomach ulcers, skin rash, tremors, delayed brain
development, bone / arthritic pains, greater risk of
some cancers, convulsions, death |
|
Iodine |
1,100 mcg |
Abnormal
growth of the thyroid gland, disorders in overall functioning
and growth; >2 g can be fatal to humans |
|
Iron |
45 mg |
Impaired
absorption of zinc, slow wound healing, impaired immune
system |
|
Magnesium |
350 mg |
Nausea, vomiting,
low blood pressure, nervous system disorders; can be
fatal to people with kidney disease |
|
Manganese |
11 mg |
Involuntary
laugh, hand tremors, slurred speech, paralysis of facial
muscles |
|
Molybdenum |
2 mg |
Skin eruptions,
itchy skin, spinal or joint inflammation, bone loss,
decreased growth |
|
Nickel |
1 mg |
Asthma, angina,
other cardiac disorders, cancer of the sinuses, throat
and lungs, skin rashes |
|
Phosphorus |
4000 mg |
Impaired
absorption of calcium; osteoporosis, arthritis, gout,
loose teeth, cavities, skin eruptions, impaired immune
system, kidney stones, higher risk for several cancers |
|
Selenium |
400 mcg |
Brittle finger
nails, hair loss |
|
Sodium |
2,300 mg |
Edema, hypertension,
stroke, dizziness, gout, headaches, kidney damage and
stones, stomach problems, nausea, vomiting, coma |
|
Vanadium |
1,800 mcg |
Arthritis;
aching bones, jaw, teeth, tonsils, and ears; bone loss;
weak immune system; chronic colds; gastrointestinal
disorders |
|
Zinc |
40 mg |
Nausea, vomiting,
diarrhea, abdominal pain, gastric bleeding |
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Balanced
Nutrition | Nutrient
Deficiencies | Nutrient Overdose
Supplementation
| Isotonic
Supplements | Additional
Articles
|