Can I do oil pulling after a meal?

I've recently started oil pulling once a day. However I would like to do it up to three times a day, but this is difficult for me if I have to wait four hours after eating. I eat a couple of hours before I go to bed.

My question is this: Is it harmful to OP after eating? Which is better, to forgo oil pulling after eating, meaning I would only do it once a day, or to be a little more lenient with the rules and do it 1-2 hours after eating, meaning that I could do it 2-3 times a day. Even if it wouldn't be as beneficial to OP after eating, surely, it's better than not doing it at all?

Any advice or sharing of experiences welcome!!