Having an autistic child can sometimes feel like you're trying to solve ten different problems at once.

Maybe your child has difficulty communicating, but also doesn't sleep. Maybe there are digestive problems, extremely restricted eating, sensory sensitivities, anxiety, irritability, frequent illness, or other ongoing health concerns.

You may find yourself wondering:

Are all of these things just part of autism? Or could there be other health issues worth investigating?

That was a question we eventually had to ask ourselves. We learned that it was important to look at our child's health as a whole rather than treating every symptom as a completely separate problem.

If your autistic child has constipation, diarrhea, abdominal discomfort, reflux, restricted eating, food sensitivities, or other digestive problems, you may already suspect that something is going on with their gut.

You may also notice that digestive problems seem to occur alongside changes in sleep, appetite, behavior, mood, or overall well-being.

That can lead to a lot of questions:

• Could my child's digestive problems be connected to other symptoms?
• What exactly is the gut microbiome?
  
• What does the gut-brain connection have to do with autism?
• Could yeast or other changes in the gut be part of the picture?
• What role do nutrition and supplements play?
• Why do heavy metals and environmental factors come up when I research gut health?

These are some of the reasons gut health has become an important part of the biomedical approach to autism. This article explains what you should know about digestive health, the gut microbiome, the gut-brain connection, and some of the areas you may encounter as you investigate further.

When you're trying to understand your child's health, environmental exposures may be one piece of the puzzle you eventually start investigating. You may begin with questions about mercury, lead, pesticides, water, air quality, food, household chemicals, or other substances your child may have encountered.

You may also wonder:
Could an environmental exposure be affecting my child? How would I know? What should I actually investigate?

These are reasonable questions. Children can be particularly vulnerable to environmental contaminants because their bodies are still developing, and they have different patterns of exposure than adults. Research has also examined associations between various environmental pollutants and autism and other neurodevelopmental outcomes. That research does not mean that a particular exposure caused your child's autism, but it is one reason environmental health continues to be investigated.

For parents exploring a biomedical approach, environmental exposures can also lead to a much broader set of questions about heavy metals, nutrition, gut health, methylation, detoxification, and chelation.