Sulfate is an important nutrient and enzyme cofactor. Blood sulfate is depressed for individuals with autism,<br>partly due to poor resorption in the kidney. We model the kidney nephron using simple mathematics and<br>examine flowrates, concentrations and resorption along the length of the proximal tubule. Three math<br>experiments are performed using our kidney model. Assuming constant resorption, NaS1 transport protein<br>density is examined. Blood levels of sulfite and thiosulfate inhibitors are increased to show their influence<br>on neurotypicals.