Safest supplement for a 4yo?

[Guest guest]

I had my 4yo on low-dose grapefruit seed extract for 2 weeks to kill off

yeast. He did great. After I stopped giving it to him, he's been craving

carbs like crazy (and eating them like no tomorrow), so I know yeast is just

going to come back. He's unbearable when yeast is high - moody, intolerance

to frustration, oppositional, melts down frequently... Sounds like a normal

kid, but I didn't realize until after I started deyeasting him that it was a

problem!

I'm going to try my best to control his diet, but sometimes it's just too

hard.

What are good supplements to give long-term to control yeast for my 4yo?

He's on probiotics, biotin, calcium, magnesium, vitamin C, kid's

multivitamin, and omega 3.

Thanks!