Monday, 12 January 2015

Who Needs Omega-3s?

You’ve likely heard about the many health benefits of omega-3 fatty acids. Are you getting enough of them in your diet?

According to experts, probably not. And most people you know -- your spouse, your toddler, and your mom – probably aren’t either.

“Pretty much everybody’s diet is deficient in omega-3s,” says David C. Leopold, MD, director of integrative medical education at the Scripps Center for Integrative Medicine in San Diego. “I think that’s why adding them back in seems to have so many health benefits. We’re just balancing out what’s normally” there.

Omega-3s are rapidly becoming an important tool in mainstream medicine. They seem to have health benefits for every age group – from before birth to old age. There’s conclusive evidence that they protect against heart disease and lower triglycerides. There’s also some research showing that they might help with dozens of other conditions, too.

To help you better understand the benefits -- and some of the risks -- of omega-3s, here’s a primer on using omega-3 fatty acids. WebMD has also surveyed the evidence of how omega-3s help four groups of people -- infants, children and teens, young adults, and middle-aged to older adults.


What Are Omega-3s?

Omega-3s are essential fatty acids -- we need them for our bodies to work properly. One of their most important benefits is that they seem to have an anti-inflammatory effect.

“A lot of diseases, like heart disease and arthritis, seem to be related to an inflammatory process,” says Leopold. “Omega-3s can tune down the body’s inflammation, and that may be how they help prevent some of these chronic diseases.”

So how do omega-3s benefit people at different ages? Here’s the rundown on the research.

Keep in mind that few of these studies are definitive, and larger studies are needed to determine therapeutic benefit.  Also, some studies used food sources of omega-3s, and others used omega-3 supplements.

Always discuss the use of any medication or supplement with your doctor.

Omega-3s for Infants, Prenatal Health, and Pregnancy

Omega-3s are important for children’s health right from the start – actually, before they’re even born. Here’s some of the evidence.

Cognitive development. Some studies show that infants fed formulas enriched with the omega-3 fatty acid DHA show improvements in hand-eye coordination, attention span, social skills, and intelligence test scores. Studies have shown that children born to mothers who took supplements of omega-3s (DHA and EPA) during pregnancy and the during the first months of breastfeeding scored higher on cognitive tests at 4 years of age compared to children whose mothers did not take supplements of DHA and EPA.
Asthma risk. A 2008 study found that the teenage children of women who took fish oil during pregnancy were less likely to have developed asthma.
Growth. There’s some evidence that when omega-3s are added to formula, it promotes growth and brain development in premature infants.
Preterm labor. A 2003 study found that women who ate eggs enriched with omega-3s were less likely to go into premature labor than women who ate standard eggs.
Although none of these studies are conclusive, there’s good reason to make sure that infants – and pregnant women -- are getting their omega 3s such as DHA and EPA.

Many infant formulas are now supplemented with DHA. A mother’s breast milk is an ideal source of omega-3s, although it may be affected by how many omega-3s she’s getting in her diet.


Omega-3s for Children and Teens

Some of the childhood conditions that have been studied include:

ADHD. Kids with ADHD may have lower levels of omega-3s in their bodies than normal, and a few small studies have looked at fish oil supplements as a treatment. They found that the supplements might improve behavior, reduce hyperactivity, and boost attention in kids under 12.
Depression. Fish oil is often used as a treatment for depression in adults; there have been a few studies in children too. One small 2006 study of fish oil in depressed 6- to 12-year-olds found it helped their symptoms significantly.
Diabetes. One small study looked at kids who were at high risk of developing type 2 diabetes. The researchers found that those who ate a high omega-3 diet were less likely to develop the condition.
Asthma. Omega-3s may reduce inflammation in the airways, which could benefit those with asthma. One small study of 29 children with asthma found that those taking fish oil for 10 months had fewer symptoms than those who didn’t. However, other studies of omega-3s as an asthma treatment have not found consistent evidence that they help.
Keep in mind that many of these studies were small and other studies have sometimes found contradictory evidence. More research needs to be done before we’ll know the full implications.

Read more at: depkhoenews.com

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