Prenatal DHA Supplement

Written by Dr. Steve Chaney on . Posted in DHA and Pregnancy, Prenatal DHA Supplement

Author: Dr. Stephen Chaney

Is taking a prenatal DHA supplement wise for brain health?

There are lots of reasons to think that DHA supplementation may be important for healthy brain development.

  • DHA is a major component of the myelin sheath that coats every neuron in the brain.
  • Just as the plastic coating on copper wire allows it to conduct an electrical current, the myelin sheath allows neurons to conduct nerve impulses from one end of the neuron to the other. In short, the myelin sheath is absolutely essential for brain function.
  • Unlike many of the other components of the myelin sheath, the body cannot make DHA. It must be provided by the diet.
  • Recent studies have suggested that most women in the United States and Canada do not get sufficient amounts of the omega-3s EPA and DHA in their diet.
  • Animal studies show that DHA deficiency during pregnancy interferes with normal brain and eye development.

With all that circumstantial evidence, it would seem obvious that a prenatal DHA supplement would be important for healthy brain development in infants and children.  However, clinical studies have been all over the map.

Some studies have reported that DHA supplementation during pregnancy improves cognition, attention span, behavior or reading skills in both infants and children.  Other studies have shown no effect of DHA supplementation on those parameters.  There is no consensus on this very important question.

Thus, when I saw a recent study titled “Prenatal Supplementation with DHA Improves Attention At 5 Years Of Age: A Randomized Controlled Trial” (U Ramakrishnan et al, American Journal of Clinical Nutrition, doi: 10.3945/ajcn.114.101071, 2016), I decided to Investigate.

 

Does Taking a Prenatal DHA Supplement Improve Attention Span?

healthy brains for kidsIn this study 1094 Mexican women were randomly assigned to receive either 400 mg of DHA or a placebo containing corn and soy oil starting in the second trimester of pregnancy (a time at which myelination and brain development begins) until delivery. Of the women enrolled in the study, 973 of them gave birth to healthy babies.

The investigators were able to follow up with 797 (82%) of those children at age 5 and conducted tests to measure overall cognitive function, behavior, and attention span.

  • There were no differences in overall cognitive development or behavior between the two groups.
  • The children from mothers who supplemented with DHA performed significantly better in tests of attention span. They were much less likely to be distracted by external stimuli than the children from mothers not supplementing with DHA.
  • In short, this study suggested that supplementation with DHA during pregnancy produced children who were less likely to suffer from attention deficit disorders at age 5.

This study had a number of strengths:

  • It was a fairly large study (797 children).
  • Supplementation was with pure DHA rather than with a mixture of EPA, DHA, and other omega-3 fatty acids.
  • The population was from an urban area of Mexico where omega-3 intake is generally low, so it was likely that many of the women were DHA-deficient at the beginning of the study.

However, it also had some glaring weaknesses:

  • The DHA status of the women was not measured either at baseline or after supplementation.
  • The quality of the child’s learning environment was not measured.

In short, the study was neither better or worse than the many other published studies.

 

Why Is There So Much Confusion?

To try and clear up the confusion I have also analyzed many of the other published studies in this field. There were things not to like about every study, but there was no obvious reason why some studies showed a positive effect of DHA supplementation and others failed to see any benefit. This is not unusual for human nutrition clinical studies, but it is frustrating.

However, when you look at the totality of the studies in this field there is one obvious reason why there is so much confusion. There is no uniformity in experimental design. No two studies are alike.

The published studies differ in:

  • The composition of omega-3s. Some studies are done with pure DHA. Others with mixtures of EPA and DHA and with varying ratios of EPA to DHA.
  • The amount of DHA. Studies range from 100 mg/day to 800 mg/day.
  • When the DHA is given. Some studies give the DHA to the pregnant mothers. Others give DHA to infants or to children of various ages.

Even worse, most of the published studies to date have not measured omega-3 status prior to supplementation, nor have they documented an improvement in omega-3 status with supplementation. Obviously, DHA supplementation is most likely to be beneficial for individuals who were DHA-deficient at the beginning of the study.

Until there is some uniformity in experimental design and DHA status is routinely measured, it is likely that the confusion will continue and this important question will remain unanswered.

 

  Should Pregnant Women Take a Prenatal DHA Supplement?

prenatal dha supplementIf we were to assume that most American women were getting enough omega-3s in their diet, and the consequences of DHA deficiency were relatively minor, this would be merely an academic discussion. We could afford to wait years until scientists were able to come to a consensus.

However, neither of those assumptions are true:

  • One recent study reported that the United States and Canada rated last in the world with respect to omega-3 intake.
  • If any of the reported consequences (short attention span, cognitive deficits, and behavioral problems) of DHA-deficiency during pregnancy and childhood are true and they are preventable with DHA supplementation, this information is of vital importance to every woman during her child bearing years.

In short, inadequate DHA intake is so widespread and the possible consequences of DHA deficiency during pregnancy are so important that, in my opinion, a prenatal DHA supplement only makes sense. Pregnant women can’t afford to wait until we are absolutely sure that DHA supplementation is essential.

The only caveat to this recommendation is to make sure that the DHA you are getting is pure. Our oceans are increasingly polluted. Many fish and some fish oil supplements are contaminated with heavy metals and/or PCBs. Only use omega-3 and/or DHA supplements from manufacturers that use very stringent quality controls to assure their products are pure.

 

The Bottom Line

 

  • A recent study has reported that DHA supplementation during pregnancy improves attention span in children at age 5.
  • Unfortunately, there is no consensus in this field. Some studies have come to similar conclusions while others have seen no effect of DHA supplementation during pregnancy.
  • If we were to assume that omega-3 deficiency was rare in this country and the consequences of DHA deficiency during pregnancy were inconsequential, this would be an academic discussion. Pregnant women could wait for scientists to reach consensus before deciding whether or not to supplement with DHA. However, neither of those studies are true.
  • Studies show that most women in the US and Canada do not get adequate omega-3s during pregnancy.
  • If any of the reported consequences of DHA deficiency during pregnancy are true and they are preventable with DHA supplementation, this information is of vital importance to every woman during her pregnancy.
  • In short, inadequate DHA intake is so widespread and the possible consequences of DHA deficiency during pregnancy are so important that, in my opinion, DHA supplementation during pregnancy only makes sense. Pregnant women can’t afford to wait until we are absolutely sure that DHA supplementation is essential.
  • The only caveat to this recommendation is to make sure that the DHA you are getting is pure. Our oceans are increasingly polluted. Many fish and some fish oil supplements are contaminated with heavy metals and/or PCBs. Only use omega-3 and/or DHA supplements from manufacturers that use very stringent quality controls to assure their products are pure.

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

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Latest Article

Biceps Pain Caused by a Tiny Muscle

Posted March 19, 2019 by Dr. Steve Chaney

An Unexpected Cause Of Biceps Pain

Author: Julie Donnelly, LMT –The Pain Relief Expert

Editor: Dr. Steve Chaney

 

It’s Spring In Florida

spring flowersMarch is a beautiful time of year here in Florida, and it’s the beginning of Spring for our friends and relatives in the northern states.  I lived most of my life in New York, and I loved when the purple crocuses started peeping up through the snow.  Spring was on its way!

Of course, on March 17th there is also that fun holiday – St. Patrick’s Day.  The parade in New York City is the largest St. Patrick’s Day parade in the world, followed by Dublin. In fact, the first parade in New York was in 1762, a full 14 years before the signing of the Declaration of Independence.  It’s a huge party, a parade that lasts for hours officially, and then the party continues for many more hours unofficially.

Everyone is Irish on St. Patrick’s Day!  So, whether you are born Irish, or you’re just Irish for the day, I wish you this popular Irish blessing…

“May the road rise up to meet you

May the wind be always at your back

And may the sun shine be warm upon your face.”

 

A Tiny Muscle Can Cause Shoulder And Arm Pain

biceps pain subclavius muscleA tiny muscle that can cause biceps pain.

There is a pencil thin muscle that runs from the cartilage of your 1st rib to the end of your clavicle (collar bone). The name of the muscle is Subclavius.

The subclavius muscle lifts your first rib when you inhale so your lungs can expand, and it also stabilizes the joint between your clavicle and your sternum.  It’s a small muscle and most people aren’t aware of it, or how it helps us.

Normally this muscle is not repetitively strained, however during a time of rapid breathing it can go into spasm.  Perhaps you have a cough and you are doing sudden, rapid breaths. Or, maybe you are a runner and you’re breathing rapidly. Anything that makes you take deep breaths quickly can cause muscle spasms to form in your subclavius muscle.

As shown by the green shading on the chart, the referred pain for the subclavius goes across the entire length of the front of your shoulder, and then continues down biceps muscle on the front of your arm.  The darker shading demonstrates where the greatest pain is felt. While the pain is most frequently felt in the shoulder, biceps pain can also occur.

 

An Unexpected Cause Of Biceps Pain

biceps pain treatmentIf you have pain in your biceps muscle, you may not consider that a muscle spasm in the top/front of your chest is the source of the problem. If rubbing and stretching your biceps isn’t giving relief, you are stuck for a solution.  Yet, just putting direct pressure on the spasm, located at your sternum, just under your collarbone, will solve the problem.

Press your finger directly onto the spot.  If you don’t find a tender point, move ½” toward the outside and continue pressing until you find a tender point.  This is the spasm that is causing the pain pattern.

It’s as simple as that!

 

Wishing you well,

Julie Donnelly

 

These statements have not been evaluated by the Food and Drug Administration. This information is not intended to diagnose, treat, cure or prevent any disease.

 

About The Author

julie donnellyJulie Donnelly is a Deep Muscle Massage Therapist with 20 years of experience specializing in the treatment of chronic joint pain and sports injuries. She has worked extensively with elite athletes and patients who have been unsuccessful at finding relief through the more conventional therapies.

She has been widely published, both on – and off – line, in magazines, newsletters, and newspapers around the country. She is also often chosen to speak at national conventions, medical schools, and health facilities nationwide.

Check It Out!

If you would like easy to follow instructions on how to relieve joint pain and muscle tightness from head to toe click here  to check out Julie Donnelly’s Pain Relief System today. Whenever, I have pain and stiffness I use her techniques. They work!

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