Vitamin D and Autism: Is there a connection?

We recently saw an interesting article about vitamin D in Autism Parenting Magazine. It explores whether or not there’s a connection between vitamin D and improving autism symptoms in children.  

According to the article, back in 2008, an innovative paper was published based on data that showed autism occurred more frequently in children who lived in regions with greater cloud cover and rain versus other regions with more sunshine.

Since vitamin D is produced naturally when you’re in the sun, the paper hypothesized there is a connection between autism and vitamin D and that taking vitamin D supplements could benefit children with autism.

Eight years later, a research study featured in the Journal of Child Psychology and Psychiatry found that autism symptoms of children improved significantly following a 4‐month vitamin D3 supplementation regimen. The study has since been retracted, but the authors admit “a great deal of additional wide-scale studies are needed to critically validate the efficacy of vitamin D in autism.”

Here are two subsequent studies you can check out:

  • This study is from 2021 and concludes vitamin D does improve typical autism symptoms.
  • This one from 2024 found that vitamin D deficiency early in life is a risk factor for the development of autism and that supplementation with vitamin D improves the core symptoms of autism. However, like the previously mentioned retracted study, the authors state they were unable to determine how vitamin D works in autism and need more basic research to explore the mechanisms involved.

All that is to say the research is promising, but ultimately, the jury’s still out.

What we do know for certain is that vitamin D benefits everyone’s overall health. First and foremost, it’s essential for strong bones, because our bones can’t absorb calcium without it.

Vitamin D also regulates many other functions in the body. For example, vitamin D helps prevent and reduce inflammation and works as an antioxidant, supporting our immune health, muscle function, and brain cell activity – all areas of concern for kiddos with autism.

As the article in Autism Parenting Magazine states, vitamin D also plays a role in our ability to regulate our moods. This is another important benefit for children with autism who are prone to anxiety and mood swings.


Sources of Vitamin D for Children

There’s more than one way to get beneficial vitamin D we need every day. You can get it from:

  • Food – Besides fish, like salmon and tuna, vitamin D can also be found in fortified foods, like milk, yogurt, eggs, cereal, and orange juice.
  • Supplements – Always consult your doctor if you’re considering giving your child vitamin D supplements. They can be helpful if you have a picky eater or if there’s a lack of sunshine, such as during fall and winter months.
  • Sunshine – Most people can get the right amount of vitamin D from just 10-15 minutes of direct sun exposure a few times a week. Keep in mind that sunscreen can block the ultraviolet rays that are key to vitamin D production in our bodies.

Summertime makes it easy to get your daily dose of vitamin D. So, head outside, have some fun together as a family, and get some exercise while you let your bodies do what comes naturally – produce healthy vitamin D!

For other science-based strategies for helping your child with autism have a healthy and happy life, contact our autism and ABA therapy experts today. Like vitamin D, ABA therapy can help your child in many areas, including communication and language, social skills, and school preparation.





Ashvina attended University of Bombay and graduated with a Bachelors of Commerce. She got her Montessori Diploma in 1985 and taught ever since. Ashvina came to TBE in January of 2016 as Admin Assistant. During the years she got the opportunity to learn and work in different departments such as HR, Finance, Office Manager and Executive Assistant. Last summer TBE bought billing in house and her current focus area is Revenue Cycle Management. She is detail oriented and enjoys working with people. Ashvina volunteers to deliver meals to seniors and local shelters on the weekend. She loves to spend time with her family and grandkids. Ashvina loves her job because she enjoys hearing different points of view, and she feels her contributions help fuel the direction of our company.

Working with children comes naturally to Angela. Her mom was a special education teacher for 30 years and often had Angela join her for Take Your Child to Work Day. And in high school, Angela spent every summer as the nanny for a little boy with an autism spectrum disorder. It was this experience where her passion for working with children with autism started to blossom.

From there, she went on to graduate from Oklahoma State University with a Bachelor of Science in Human Development and Family Sciences. She learned about Applied Behavior Analysis (ABA) in a non-normative development class and from that moment knew that ABA would be her life’s work.

Angela moved to the DFW area shortly after and began working at The Behavior Exchange as a therapist. She worked on her Master’s in Behavior Analysis at the same time. A year after graduating, she earned certification as a Board Certified Behavior Analyst.

Now, as a Clinical Director at The Behavior Exchange, she brings a life-long passion to her work, holding a special place in her heart for children with limited language skills and working closely with families to develop healthy sleep habits.

Danielle’s passion for working with families is deeply personal and from the heart. Her younger brother has an autism spectrum disorder, and through their journey as a family, she found her purpose in life as an advocate for individuals with special needs.

After graduating from the University of North Texas with a degree in Human Development and Family Studies, Danielle began volunteering at The Behavior Exchange. She saw passionate therapists, meaningful change for clients, and families with hope for the future. After a summer of volunteering, she officially joined the team as Director of Admissions and found her home with The Behavior Exchange family.

With her extensive experience working as a client advocate with insurance providers, Danielle perseveres to help individuals of all ages and abilities receive the services they need to reach their full potential. She feels truly honored by each and every family who entrusts The Behavior Exchange to be part of their journey and is committed to the organization’s core values, mission, and goal of being a beacon of hope for the community.

Adam has always had a passion for helping individuals of all ages thrive and reach their full potential. He’s also an enthusiastic musician, songwriter, leader, and devoted family man, who has been helping children and team members grow with The Behavior Exchange since 2010.

Prior to joining the team at The Behavior Exchange, Adam was a mortgage loan consultant and grad student, pursuing his master’s degree in Education at the University of North Texas. He graduated in 2013 and also earned a graduate academic certificate in Autism Intervention. The following year, after years as a Behavior Therapist and seeing first-hand the power of ABA and the meaningful impact it can have on children and their families, Adam became a Board Certified Behavior Analyst. He then commenced from the Stagen Leadership Academy after completing the Integral Leadership Program (ILP), a 52-week practice-based program designed to develop executives serious about transforming themselves, their teams, and their organizations.

Adam is truly grateful to be a part of a dynamic, inspiring and compassionate team, and he’s dedicated to bettering the lives of all children and their families through the delivery of the highest quality of ABA services, while supporting the amazing team at The Behavior Exchange.

Soraya is from South Africa and moved to Texas in 1996. She graduated from The University of Texas and pursued a career, at that time, in Education. Soraya taught at a Montessori school for a few years and then took on a leadership role.

During her time in the education system, Soraya realized her passion was to assist children with special needs. So she joined The Behavior Exchange as a therapist, transitioned into a supervisory role in 2017, and a year and a half later, was promoted to Clinical Operations Manager.

She quickly learned the ins and outs of ABA operations and scheduling and successfully collaborates across departments to ensure The Behavior Exchange continues to provide quality services to clients and their families. She’s thankful to be part of such an amazing organization and excited to see what the future holds.

You could say Walter’s career started when he spent hours as a young child drawing superheroes and coloring maps. This passion, along with extraordinary swimming skills, landed him a full swimming scholarship at Texas Christian University, where he graduated in 1997 with a Bachelor of Fine Arts in Communication Graphics.

During the next 13 years, his design and art direction skills, conceptual-thinking abilities, and marketing-savvy know-how were honed at a few prestigious advertising and marketing agencies around the Dallas area. In the mid 2000s, he helped his wife Tammy Cline-Soza (founder and CEO of The Behavior Exchange) create a unique and concise brand for her new business. From logos and websites to uniforms, brand voice and visuals, Walter has been the main creative force for all things The Behavior Exchange.

Aside from giving birth to The Behavior Exchange brand, Walter is helping Tammy raise two amazing, beautiful children, River and Sierra. In his spare time (the two minutes he’s got per week), you can find Walter illustrating iconic landmarks of Dallas and Texas or looking around for this next open-water swim. Once he gets back in shape.

After 20 years of building The Behavior Exchange, literally from the ground up,
Tammy couldn’t be more proud of the team, culture, and organization that it has become.

As a family helping families, The Behavior Exchanges looks for opportunities that will make the biggest impact and produce life-changing outcomes – for clients, families, and even for team members. Tammy believes that if a team, a family, a community takes care of each other, the possibilities are endless and the relationships built along the way can make life more enriching and challenges easier to navigate. You could say her goal has been to build a kind of utopia full of support, love, and expertise that brings the best services possible to the community and ensures more families have access to those services.

Tammy and her family have dedicated their lives to the mission of The Behavior Exchange and continue to grow, learn, cultivate, challenge, support, and create better models for success. To that end, she is committed to her own leadership development and actively participates in advanced training, mentoring, and deep self-exploration on how to live out her purpose to love and support her family and help others reach their full potential. She takes her position very seriously and tries to serve as a channel for what the universe wants to come to fruition.

She also loves travel, gardening, being creative, MUSIC!, tennis, yoga, meditation, journaling, reading, being in nature, adventures, and more than anything, spending time with her husband Walter and their two beautiful children, River and Sierra.