I can’t speak for these specific people, but I know that eating clay can absorb toxins, like the kinds of poisons plants make to stop you eating them. There’s also potentially mineral supplementation and introduction of beneficial bacteria.
But it’s not very safe to eat dirt in modern times because we’ve poisoned a lot of the soil with various substances. You can buy edible dirt which is known to be safe.
I can’t speak for these specific people, but I know that eating clay can absorb toxins, like the kinds of poisons plants make to stop you eating them. There’s also potentially mineral supplementation and introduction of beneficial bacteria.
But it’s not very safe to eat dirt in modern times because we’ve poisoned a lot of the soil with various substances. You can buy edible dirt which is known to be safe.