My 3-year-old son has had loose stools for about 1 month, they are also sandy. His health is perfect other than that. What should I do?

You can try giving your 3-year-old son probiotics like BioGaia™ for 5 to 7 days to see if it helps with his loose and sandy stools. If there is no improvement, it may be a good idea to consult with a healthcare professional for further advice.