Vitamin D and Improved Overall Symptoms

• Effect of diet intervention on symptoms in autism spectrum disorder: An umbrella review.

  • 2026-04
  • Systematic Review · n = 5,033
  • Research in developmental disabilities 171
  • • Jiaxin Shi
    • Yichao Cheng
    • Yenan Wei
    • Yongbo Shi
    • Zhimei Jiang

  • PubMed: 41865680
  • DOI: 10.1016/j.ridd.2026.105270

  1 Insight on

  • Improved Overall Symptoms

  • High evidence
  • Clinical

  Vitamin D showed the most significant effect on overall symptoms of ASD (SMD = -0.45).

  Effect

  Beneficial

  Effect size

  Moderate

  Significant

  Yes