evidence: Supporters of the test argue that hCG interacts with salt to produce an altered or clotted texture. Nevertheless, there is a lack of scientific research to clarify the mechanism through which salt and hCG would trigger a response. [...] A salt pregnancy test done at home, where salt is thought to react with hCG in urine to create a different texture, maybe a cost-effective way to detect pregnancy; nonetheless, there is no scientific proof to back it up. [...] - This test entails pouring urine over salt, as proponents theorize that the presence of hCG in urine will result in a curdled reaction with the salt, indicating a positive pregnancy result.