Improvements reported with nanoemulsion vitamin D

A study by researchers in Egypt suggests that supplementation with a nanoemulsion form of vitamin D3 may improve the behavior, social skills, and language skills of children with autism spectrum disorders (ASD).

Many children with ASD are deficient in vitamin D3, and research suggests that a deficiency of this vitamin—which is crucial for brain development and function—may worsen ASD symptoms. However, while some studies exploring the usefulness of D3 supplementation for children with ASD have reported positive results, others have not. Nagwa Meguid and colleagues speculated that using a nanoemulsion form of the vitamin, designed to improve uptake, might enhance any effects of supplementation.

The researchers enrolled 80 autistic children between three and six years of age in their study, randomly assigning half to receive nanoemulsion vitamin D3 and half to receive a standard vitamin D3 supplement. Both groups took the supplements for six months and were evaluated before and after using the Childhood Autism Rating Scale, the Vineland Adaptive Behavior Scale, and the Preschool Language Scale.

The researchers report that the children who received the nanoemulsion form of D3 showed significant improvements in symptom severity, behavior, social skills, and language skills, while the group receiving the standard D3 supplement did not. In addition, the nanoemulsion group had larger increases in vitamin D3 levels.

While cautioning that larger studies are needed, the researchers conclude that the nanoemulsion form of vitamin D3 is superior to conventional oral D3 in increasing bioavailability of the vitamin and producing beneficial results for children with ASD.

Citations

“Improved core manifestations of autism following supplementation with vitamin D3-loaded nanoemulsion,” Nagwa A. Meguid, Maha Hemimi, Gina Hussein, Ahmed Elnahry, Marwa Hasanein Asfour, Sameh Hosam Abd El-Alim, Ahmed Alaa Kassem, Abeer Salama, Amr Sobhi Gouda, Walaa Samy Nazim, Radwa Ibrahim Ali Hassan, and Neveen Hassan Nashaat, LabMed Discovery, June 2025 (free online). Address: Neveen Hassan Nashaat, Autistic Disorder Research Clinic, Medical Research Centre of Excellence, National Research Centre, Cairo 12622, Egypt, [email protected].

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“Next-generation vitamin D3 supplement significantly improves core autism symptoms,” news release, Shanghai Jiao Tong University Journal Center, July 5, 2025.