On this diet, I don't think you really get so much protein that it would interfere with sinemet, it's mostly fat. I read the one they one on the severely epileptic kids is close to 80% fat, which would only give you 10/10 for carbs and protein. That's not much at all.

We've found all food interferes with sinemet, not just protein. But we're giving this a go anyway. We're finding it's actually hard to eat this much fat!