Archive for October, 2008

Vitamin B3, also known as niacin, is a not stored vitamin. And any nutritional extras is urine flushed.

This B vitamin is essential, and has a role in your:

Vitamin B3 can be found in many foods, here are a few niacin rich dietary morsels:

In addition, your body has the ability to convert tryptophan, an essential amino acid, to niacin as well.

The recommended daily allowance (RDA) of niacin:

  • men ~ 16mg/day
  • women ~ 14mg/day

Niacin’s most notable health benefit is its use for treating heart disease. It is often prescribed to those who have had a heart attack to lower cholesterol and triglycerides in their blood.

There are some negatives to this story. So taking niacin supplements for the cholesterol benefit should only be done per a doctor’s orders.

Some other not yet fully substantiated health benefits of niacin are

  • headaches
  • skin condtions
  • treat osteoarthritis
  • speed up wound healing
  • reduce liver cancer deaths
  • age related macular degeneration
  • dementia, Alzheimer’s prevention
  • assist immune system to ward off viral infections

Again, nothing conclusive here. Therefore, don’t run out and buy up the store. Besides, it comes with side effects.

Speaking of side effects. Whenever you begin taking supplemental niacin, or up your dose, you’ll likely experience skin flushing. Or its vasodilatory effects. This is a warm sensation, especially noticed in your face, neck and ear areas.

A couple of tricks to help lessen this flushing side effect is by taking:

  • aspirin
  • antihistamine 15 minutes prior
  • NSAIDs ~ ibuprofen, naproxen, indomethacin
  • slow release niacin ~ may lessen or delay skin flushing

Your vasodilating flushing response to niacin should decrease in a couple of weeks.

Other side effects you might experience upon kick-off of a supplemental niacin regime include:

  • nausea
  • diarrhea
  • vomiting
  • skin rashes
  • dry itchy skin
  • mild stomach upset

These symptoms usually resolve as your body adapts.

Here is a long list of niacin’s side effects, and a great reason why taking beyond diet doses of niacin should only be done at the direction of your health care provider:

  • jaundice
  • myopathy
  • dyspepsia
  • liver failure
  • peptic ulcer
  • arrhythmias
  • lactic acidosis
  • hyperglycemia
  • heart palpitations
  • low blood pressure
  • altered blood sugar
  • altered insulin levels
  • liver toxicity, damage
  • blood clotting problems
  • low white blood cell count
  • worsening of stomach ulcers
  • altered uric acid concentrations
  • increased creatine kinase blood levels~ marker of muscle damage
  • increase blood homocysteine levels ~ increased risk of heart disease

Ah, what the heck. Why not see some rarely reported side effects:

  • lazy eye
  • headache
  • dizziness
  • panic attacks
  • blurred vision
  • hypothyroidism
  • teeth, gum pain
  • macular swelling
  • increased anxiety
  • breathing difficulty

These side effects tend to resolve when you stop taking niacin.

Pellagra is a disease that occurs when your body has a severe niacin deficiency. This may happen if:

  • not enough dietary niacin
  • not enough tryptophan in diet
  • body fails to absorb these nutrients

A mild niacin deficiency slows your metabolism, causing an intolerance to cold.

Pellagra is common where a lot of corn is in the diet. Symptoms for pellagra consist of:

  • fatigue
  • diarrhea
  • vomiting
  • headache
  • delusions
  • depression
  • constipation
  • loss of memory
  • pigmented rash
  • scaly skin sores
  • bright red tongue
  • mental confusion
  • inflamed mucous membranes

Likewise, pellagra can develop if you are suffering from a gastrointestinal disease, i.e. Crohn’s disease, or alcoholism.

Finally, to those of you who have heard that a benefit of high dosage niacin “flushes out” traces of illegal drug use (marijuana) for drug test screening, know that science does not support this idea.

However, what this practice might do for you is cause you to experience the aforementioned side effects of a niacin overdose.

Vitamin C, sometimes cited as ascorbic acid, is one of those “cannot be stored nor manufactured” vitamins. Meaning it needs to be perpetually supplied to maintain health.

Vitamin C is a health promoting antioxidant and is required for:

  • tissue repair & wound healing
  • repair & maintenance ~ cartilage, bones, teeth
  • collagen production ~ skin, scar tissue, tendons, ligaments, blood vessels

All fruits and vegetables contain some level of vitamin C, highest food sources being:

  • broccoli
  • tomatoes
  • cantaloupe
  • citrus fruits
  • strawberries
  • leafy greens
  • green peppers
  • sweet, white potatoes

Other not on top, but excellent vitamin C food sources are:

  • mango
  • papaya
  • cabbage
  • pineapple
  • cauliflower
  • raspberries
  • blueberries
  • cranberries
  • watermelon
  • red peppers
  • winter squash
  • brussels sprouts

Not enough regular consumption of vitamin C can lead to a deficiency. Symptoms of vitamin C deficiency include:

  • anemia
  • gingivitis
  • nosebleeds
  • weight gain
  • bruise easily
  • dry, split hair
  • bleeding gums
  • weak tooth enamel
  • slowed metabolism
  • slow wound healing
  • increased infections
  • rough, dry, scaly skin
  • swollen, painful joints
  • lowered immune system

Severe vitamin C deficiency is referred to as scurvy. It is most frequently seen in older, malnourished adults. Scurvy causes symptoms of:

  • anemia
  • gum disease
  • general weakness
  • skin hemorrhages

Recommended daily doses of vitamin C for males over 18 is 90 mg, females of the same age need 75 mg. It is not recommended to exceed a daily of dose in excess of 2,000 mg. High excessive doses of vitamin C can cause abdominal upset and diarrhea.

The ideal way to meet your recommended daily dose requirement of vitamin C, and all your essential vitamins, is by eating a balanced diet containing a variety of healthy foods.

Pregnancy, breastfeeding and smokers do need a higher daily dose. So get munching on some of those yummy dietary food sources ticked off above.

Vitamin B6, also referred to as pyridoxine, is a “not stored, dissolves in water” vitamin. This means any extras of this vital nutrient is dumped through urination. Hence, a continuous dietary supply is required.

One of your body’s benefits from vitamin B6 is production of antibodies, which help your immune system fight infection and disease. Some additional health benefits are:

  • red blood cell formation
  • assists in breaking down proteins
  • maintenance of normal nerve function
  • necessary for tryptophan’s conversion to niacin
  • increases amount of oxygen carried by hemoglobin
  • supports health of lymph organs ~ thymus, spleen, lymph nodes
  • helps stored carbohydrate conversion to glucose for reasonable blood sugar level upkeep

Food sources of vitamin B6 include:

  • milk
  • fish
  • liver
  • nuts
  • eggs
  • meat
  • beans
  • cheese
  • legumes
  • potatoes
  • whole grains
  • fortified breads, cereals
  • vegetables ~ carrots, spinach, peas

A vitamin B6 deficiency can result in anemia, one similar to iron deficiency. And a deficiency may also affect your immune response. A couple of symptoms for vitamin B6 deficiency are:

  • irritability
  • confusion
  • depression
  • tongue, mouth sores

A vitamin B6 malnutrition deficiency may occur if you are suffering from:

Too much vitamin B6, usually an overdose related to supplementation, may result in side effects of nerve damage to your arms and legs. Peripheral neuropathy side effects, as a result of an overdose, reverse once you discontinue the taking of the supplements.

Generally, you can avoid vitamin B6 deficiency or an overdose by eating a well balanced diet that includes some of its food sources. Reap its benefits and don’t sow its side effects by over supplementation.

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