Too Much Vitamin C: Harmful?

Too much vitamin C: Harmful?

Vitamin C is an essential nutrient, but too much vitamin C carries its own risks.
From MayoClinic.com

Vitamin C (ascorbic acid) is an essential nutrient. Still, it's possible to have too much vitamin C.

Vitamin C is a water-soluble vitamin that supports normal growth and development. Vitamin C also helps your body absorb iron. Because your body doesn't produce or store vitamin C, it's important to include vitamin C in your diet. For most people, a small glass of orange juice plus a serving of strawberries, chopped red pepper or broccoli provides enough vitamin C for the day. Any extra vitamin C will simply be flushed out of your body in your urine.

For adults, the recommended upper limit for vitamin C is 2,000 milligrams (mg) a day. Although too much dietary vitamin C is unlikely to be harmful, megadoses of vitamin C supplements may cause:

Diarrhea

Nausea

Vomiting

Heartburn

Abdominal cramps

Headache

Insomnia

Kidney stones

Remember, for most people, a healthy diet provides an adequate amount of vitamin C.

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Tip #39: Teach Your Children to Save Some of Their Money

This is as good of time as any to start teaching your children the value of money. Why not go to your local bank and start a savings account that they can keep up with. This brings us to tip #39.


Tip #39: Teach your children to save some of their money.

Teach them to save 10% of any monetary gifts they receive or money they earn. This will become a habit at an early age and pay off big dividends as they grow in knowledge of investing and compound interest. You are going to be the person to teach your child about savings, so why not start saving 10% of your savings yourself and learn about investment, compound interest, and a rainy day fund. Your family will be wiser and better yet financially secure.

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Autism 5 Times More Common Among Low Birth Weight Babies: Part 4

Beyond Vaccines: 5 Things that Might Really Cause Autism

Jan 7, 2011

7:28 PM ET
By Rachael Rettner, MyHealthNewsDaily Staff Writer

"People are going to manifest the disorder in different ways, and that could be because there are different sets of genes, [or] different sets of environmental factors," that contribute to how the disorder presents itself, said Alycia Halladay, director of research for environmental sciences for Autism Speaks, an autism advocacy organization that funds autism research.

Here are #3-5 findings and ideas from scientists about what might really cause this mysterious condition.

3. Pharmaceuticals
Babies that have been exposed to certain pharmaceuticals in the womb, including valproic acid and thalidomide, have been found to have a higher risk of autism.

Thalidomide is a drug that was first used in the 1950s to treat morning sickness, anxiety and insomnia. The drug was withdrawn from the market after it was linked with birth defects, but is currently prescribed for a severe skin disorder and as a treatment for cancer.

Valproic acid is a medication prescribed for seizures, mood disorders and bipolar disorder, according to the NIH.

4. Parental age
As parents grow older, they have a higher risk of having children with autism, Halladay said.

A study published last February found that women who are 40 years old have a 50 percent greater risk of having a child with autism than women who are between 20 and 29 years old.

Researchers aren't sure why parental age may influence autism risk, but it might be related to genetic mutations that occur in the sperm or the egg as parents grow older, Halladay said.

5. The development of the brain
Particular areas of the brain, including the cerebral cortex and the cerebellum, have been implicated in autism, Mao said. These brain areas are thought to be responsible for concentration, movement and mood regulation.

Irregularities in the levels of neurotransmitters, such as dopamine and serotonin, have also been tied to autism, Mao said. Problems regulating dopamine can lead to problems with concentration and movement disabilities, while troubles controlling serotonin levels can result in mood problems.

Research advances
While scientists cannot say definitively what causes autism, they have come a long way in the last decade, Halladay said.

For example, researchers originally thought there might be just a single gene or a few environmental factors that are linked to autism, but now evidence has shown there are likely to be more.

"I think our knowledge has increased, and the way that we go about looking for potential genes and environmental candidates has improved," Halladay said.

"We're thinking about a new model — it's not just going to be just one gene or one environmental factor, it's more complex than that," she said.

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