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Autism risky if low vitamin D during pregnancy and early life (mice, fecal transplant reversed it) – March 2024


Food Funct . 2024 Mar 27. doi: 10.1039/d4fo00279b PDF behind paywall
Jingjing Cui 1 2 3, Shumin Wang 3 4, Zidan Zhai 1 2, Xiaoyue Song 5, Ting Qiu 2, Leilei Yu 3 4, Qixiao Zhai 3 4, Heng Zhang 2 5

Vitamin D deficiency (VDD) during early life emerges as a potential risk factor for autism spectrum disorder (ASD). Individuals with autism commonly exhibit lower vitamin D (VD) levels compared to the general population, and VD deficiency is prevalent during pregnancy and lactation. Moreover, gastrointestinal comorbidity, prevalent in ASD patients, correlates closely with disruptions in the gut microbiota and altered intestinal permeability.
Therefore, it is fascinating and significant to explore the effects of maternal VD deficiency during pregnancy and lactation on the maturation of the gut microbiota of the offspring and its relevance to autism spectrum disorders. In this study, we established maternal pregnancy and lactation VD-deficient mouse models, employed shotgun macrogenomic sequencing to unveil alterations in the gut microbiome of offspring mice, and observed autism-related behaviours.
Furthermore, fecal microbial transplantation (FMT) reversed repetitive and anxious behaviours and alleviated social deficits in offspring mice by modulating the gut microbiota and increasing short-chain fatty acid levels in the cecum, along with influencing the concentrations of claudin-1 and occludin in the colon.

Our findings confirm that VDD during pregnancy and lactation is a risk factor for autism in the offspring, with disturbances in the structure and function of the offspring's gut microbiota contributing at least part of the effect. The study emphasises the importance of nutrition and gut health early in life. Simultaneously, this study further demonstrates the effect of VDD on ASD and provides potential ideas for early prevention and intervention of ASD.


Other Indications that poor gut bacteria ==> increased risk of Autism

Autism risk increased if infant had antibiotics (2X), acetaminophen (3X), or no vitamin D drops (1.5X) – June 2018
Autism associated with low gut flora (due to antibiotics) – Mercola Oct 2014
Antibiotics and Vitamin D are associated with many of the same diseases


Autistics have 1/2 the response to Vitamin D - perhaps poor gut bacteria

Autistics have half of the response to Vitamin D – RCT Oct 2018
They would probably benefit from 1 or more of the following
1) Larger Vitamin D doses
2) Gut-Friendly Vitamin D
3) A way that gets Vitamin D into the body without going through the gut
   Topical, sublingual, UVB
4) Higher concentrations achieved by non-daily dosing


Vitamin D Life – Autism category contains:

Autism category has 155 items

 - see also Overview Autism and vitamin D,  Autoimmune ,   Cognitive,    ADHD
Interesting Autistic studies
Autism associated with low Vitamin D

Autism treated by Vitamin D

Autism reduced by vitamins before and during pregnancy

Autism and Vitamin D Receptor (not enough Vit D gets to the cells)
This list is automatically updated

Autism - other risk factors

Autism and Virus/Vaccines
This list is automatically updated

Dr. Cannell on Autism and Vitamin D in Vitamin D Life

Autism and Omega-3
This list is automatically updated


Vitamin D Life – Fecal transplants - many studies

Includes the following sections as of March 2024

  • Faecal transplants are just the start for microbiome medicine - Economist Nov 2023
  • Fecal Transplants for Ulcerative Colitis, MS, Depression, Bipolar, and Alcoholism - Dr. Greger April 2023
  • Fecal microbiota transplants: A review of emerging clinical data on applications, efficacy, and risks (2015–2020) - Feb 2021
  • Relationships Between Vitamin D, Gut Microbiome, and Systemic Autoimmunity - Jan 2020
  • Fecal transplants as a microbiome-based therapeutic - Aug 2020
  • 5+ Vitamin D Life pages with FECAL TRANSPLANT in the title