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Maryann Jacobsen

Independent Author & Family Nutrition Expert

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Can Diet Prevent ADHD in Children?

September 2, 2009

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Jenny thought her rowdy preschooler was engaging in normal “boy” behavior. But when her son entered the first grade, she started noticing that he couldn’t sit still or focus like the other kids. He was also impulsive, often endangering himself by running off at the worst times. She finally took him to a doctor and found out he had Attention Deficit Hyperactivity Disorder (ADHD)

One in ten children lives with ADHD. Children diagnosed with the condition are more likely to experience depression, bipolar disorder, and anxiety. No one knows exactly what causes this leading disorder but experts believe that it has both genetic and environmental influences.

Two recent research reviews examined whether or not diet can help treat ADHD. While both reviews cite compelling research, each acknowledges that more studies are needed to draw conclusions. As I read both of these papers, one word kept popping up in my mind: prevention.

You see, children with ADHD often have low levels of iron, zinc, magnesium, vitamin D, and omega-3 fatty acids – the same nutrients needed for proper growth and development. Research also suggests that some children react to artificial colorings and additives in food.

So doesn’t it make sense that diets rich in these nutrients could help prevent ADHD? While the research isn’t able to answer that question, I think it’s worth considering. Let’s take a look…

Jump Ahead

  • Omega-3 fatty acids (DHA & EPA)
  • Minerals
  • Food additives and artificial colorings
  • The final word

Omega-3 fatty acids (DHA & EPA)

It’s hard to believe but sixty percent of the brain is composed of fat! Docosahexaenoic acid (DHA), an essential fatty acid found mostly in fish and fish oils, is required in high quantities in the brain and retina. Eicosapentaenoic acid (EPA) also plays a role in the brain working synergistically with DHA.

According to a recent study published in Nutrition Reviews, omega-3 fatty acids hold the most promise for nutritionally treating ADHD and/or learning disabilities. In a recent UK study, children with developmental coordination disorder (5-12 years old) were supplemented with 552 mg of EPA and 168 mg of DHA for 3 months which resulted in improved behavior, increased reading age by 9 months (3 months in the control) and spelling age by almost 7 months (1 month in the control). Before the study, these children were a year behind in both reading and spelling.

DHA and EPA are essential in little ones’ diets because their brains are still developing. Unless your child eats fish on a weekly basis, they are falling short on DHA and EPA. Unfortunately, there are no recommendations for DHA in the United States. International health groups, however, do provide recommendations for adults. According to the Omega-3 Institute, if you take these international recommendations and adjust them to the calorie intakes of young children, 2-3-year-olds need 145 mg per day of DHA and 4-6-year-olds need 200 mg.

So what’s a mom to do? Include fish meals 2-3 times a week including salmon, tuna, halibut, shrimp, and trout. And if your little one won’t eat fish consider supplementing with fish oil (I’ll be reviewing some supplements soon). If you are pregnant or breastfeeding, aim for 300mg of DHA per day.

Read: DHA for Kids: What Parents Need to Know

Minerals

Children with ADHD tend to have lower levels of iron, zinc, and magnesium than kids without the disorder. In children under 3 years of age, one-third are anemic and 1 in 10 are iron-deficient. If left untreated, iron deficiency can result in poor cognitive development and can adversely affect behavior. Studies show that children with the lowest iron levels experience more severe ADHD symptoms.

To ensure adequate intake of iron, offer children meat and poultry often as well as iron-fortified cereals combined with a vitamin C-rich fruit (to increase the absorption by four times!). Check this list for iron sources and add vitamin C-rich foods to plant-based sources of iron.

Zinc, the next mineral on the list, not only helps protect the immune system, but it also plays a role in the developing brain. As zinc levels plummet, the symptoms of ADHD increase. One theory is that certain food additives accelerate the excretion of zinc from the body in susceptible individuals. Zinc can be found in meat, poultry, beans, fortified breakfast cereals, yogurt, almonds, and cashews.

Magnesium, the last mineral associated with ADHD, is needed for over 300 biochemical reactions in the body. Low magnesium levels impact brain health in a variety of ways such as decreasing blood flow to the brain and lowering energy metabolism. Research suggests that up to 85% of children with ADHD may be deficient in magnesium. Check this list for magnesium sources including nuts, spinach, soybeans, and black beans.

Food additives and artificial colorings

Although we’re mostly focusing on nutrition, the effect of artificial colorings and additives deserves attention. According to a 2009 review in the Harvard Medical Health Letter, a small segment of children are susceptible to artificial additives in processed foods.

In fact, the findings of a recent study in Britain resulted in the United Kingdom’s Food Standards Agency’s request for food manufactures to remove six coloring agents from children’s products.

To keep the intake of such food additives low, go easy on candy, colored cereals, soda, and fruit drinks.

The Nutrition Maneuver All Parents with ADHD Kids Should Make

The final word

Omega-3 fatty acids, iron, zinc, and magnesium are essential nutrients for growing kids. And if they happen to prevent ADHD, then that’s a big bonus.

References
June, 2009 Harvard Medical Health Letter

Sinn N. Nutritional and dietary influences on attention deficit hyperactivity disorder. Nutrition Reviews. 2008; 66(10):558-568.

Richardson AJ, Montgomery P. The Oxford-Durham study: a randomized, controlled trial of dietary supplementation with fatty acids in children with developmental coordination disorder. Pediatrics. 2005;115(5):1360-1366.

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Categories: Feeding School-Age Kids, Feeding Toddlers & Preschoolers, Nutrition Reports 9 Comments

« Ask Maryann: What Should I Do When My Child Refuses Dinner?
Product Review: Carlson for Kids Very Finest Fish Oil »

Comments

  1. Ola Loa says

    September 4, 2009 at 12:01 pm

    Your blog makes some excellent points. The scenarios you describe are certainly plausible, but I do think there are some instances where ADHD-like symptoms (that may be diagnosed as ADHD) could just be something as simple as a lack of iron causing irritability, hyperactivity, and learning impairment.

    If you’re interested in the subject, I definitely recommend this article on iron deficiency by Dr. Richard Kunin.

    http://www.drinkyourvitamins.com/index.php?option=com_content&view=article&id=187:iron-deficiency-more-than-tired-blood&catid=53:articles-on-nutrition&Itemid=121

    Reply
    • Maryann Tomovich Jacobsen, MS, RD says

      September 5, 2009 at 10:10 am

      Thanks for the link! I will check it out. I’m not an expert on ADHD but have heard that it can be misdiagnosed.

      Reply
  2. lucy barlow says

    September 13, 2009 at 7:21 pm

    Great article…thanks for your insight. I have a strong interest in the area of ADD and APD. Please visit our site and read my article Attention Deficit Disorder Verses Auditory Processing Disorder – A Big Difference at http://www.learningsolutionsathome.com. Thanks and take care, Lucy Barlow

    Reply
  3. Jodie says

    January 12, 2011 at 11:30 am

    We acquired a teenaged cousin to our familiy approx
    2 years ago. She came to us with vague desciption of “learning disorder”. After failing 2 hearing screenings at school, she was referred to an audiologist. Her auditory anatomy, so to speak, was cleared but audiologist made reference that she was “malingering”. She does have a complex social situation so I was perplexed, wondering ‘why would she pretend not to hear?’. The audiologist briefing noted as we were walking out, “Now, I wasn’t checking auditory processing”, quite rudely. As a Physical Therapist, my clinical brain started turning and I asked our doc for more testing. But, in the meantime, do you think ADD meds would help her focus more in school. It was a kinda unofficial clinical trial, but she has been able to maintain in regular education classroom versus her special Ed curriculumshe was in when she came to us.
    Will be interested in more auditory processing resources!
    JS

    Reply
    • Maryann Tomovich Jacobsen, MS, RD says

      January 13, 2011 at 2:13 pm

      Thanks Jodie. This really isn’t my area of specialty. I would see a Doctor or specialist to get more information on medication and treatments. Thanks so much for you comment and good luck!

      Reply
  4. Jodie says

    January 13, 2011 at 2:36 pm

    oh sorry ~the above didn’t quite read right. That was
    the question posed to our doc. We did subsequently
    try ADD meds and she has done really good
    but the root cause of the ADD appears to be
    auditory processing.
    sorry
    JS

    Reply
  5. Kasey says

    February 26, 2012 at 11:55 am

    My husband and I want to have children soon. It is very important to me to be as healthy as possible for my baby. Needless to say I am on a mission to do as much research as possible to find out if there are any vitamins and minerals to take before pregnancy and during to help prevent add/adhd in my child. I have add, and I know what it’s like to struggle with it and I don’t want any of my future children to struggle with it. I know there is no guarantee but I want to do my best to try. Would the same vitamins and minerals mentioned in the article be as helpful for before pregnancy and during?

    Reply
  6. Toni says

    June 1, 2013 at 2:09 am

    This is all well and good but what they haven’t taken into consideration is that they need to take in more air because the body hasn’t
    been physically stimulated to naturally take in more
    air. Everybody needs to breath to survive, and we all do it without thinking.
    Initially you should concentrate on a small snippet of the technique by playing one triplet and one quaver to follow.

    Reply

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