I experienced this too. I was following a mainly fruit based diet. I started experimenting with incorporating more starch, and I have found that really helped my skin. Cut out all oils and overt fats can also be very helpful for some.
Here are some posts from the forum from past 30Baders you can go through.
What does a typical day look like for you?
Food intake, exercise, water, stress
I'd also like to see Bananamomma's question answered first.
We need to know how "low fat" we are actually talking here.
Tell me if this issue has been resolved, if not I can advise.
Reduce overt fats, no avocado, no oil, no nuts and seeds
if you're eating packaged foods such as cereals, nut bars, cookies, crisps, whatever, cut them out
Are you exercising?
Are you getting to bed around 9-10pm every night?
Are you stressed out?
Are you drinking enough water to be peeing atleast every two hours?