It was fine on my plan at four weeks. I imagine he isn't using much of it. You could always take a very small bite and see how it goes before you have more.
good luck
I fight badgers with spoons.
National Suicide Prevention Lifeline: 800-273-8255
If it's on your plan, you should be okay. However, I've found the best replacement for oil is the oil spray you can get at the grocery store and just spray each side of the fi**** can cut a lot of calories.