Intermittent Fasting

Hello, cottage cheese is a great snack. You could get one low fat if you have no more fats to spend. I also mix cottage with some steamed spinach ( you could add a little pumpkin seeds for crunchy feeling - 5-10 grams. Pumpkin seed are high in protein not only in fats). Skir (Islandic Yogurt) has also high protein and low fats. And is very low in calories. You could mix it with spinach or pickles or other greens as a small salad/ dip. If you chose chicken breast for your protein meal it adds alot too.
Habe a nice day

Ah, the fun fasting game! LOL

Seriously, if you ask this question in a different forum (e.g. something in the category Food And Nutrition) you'll probably get more responses. But leaving it at that...

If you're not avoiding meats entirely I'd recommend skinless chicken breast or skinless turkey breast.

There is some fat (I think it's unavoidable in non-frakenfood meats), but the protein/fat ratio is about as good as it gets in an animal product.

The upside is there are a lot of ways to prepare these with different cooking methods and spices that give you lots of flavor variety and don't add much if any fat or carbs, and some of the more yummy methods like cooking under the broiler or on a grill melts some of the fat off as you cook.