So, this is the diet I came up with. I'm going to try it to see if I can manage. It's not especially low-carb, but it's lower-carb than I'm eating right now. Sorry if I'm boring anyone. I'm posting it mostly to motivate myself. It was very hard to come up with meal ideas, actually!!

Day 1 (run day)
1T pb when waking up (before run), breakfast -- omelette w/ tomatoes and mozzarella and herbs, lunch -- dense German rye with avocados smushed on + a salad, dinner -- baked fish and veg. Fruit and nuts for pudding.

Day 2
Might try fasting.

Day 3 (run day)

1T PB before run. Breakfast -- Poached eggs, grilled tomatoes and BACON!!! Lunch - salad w/ fish. Dinner -- tofu in coconut broth with veg.

Day 4 (run day)
1T PB. Omelette with spinach and mushrooms, guacamole. German rye with guacamole and salad. Baked fish and veg. Mango + coconut milk for pudding.

Day 5
Filtered yoghurt with fruit and nuts. Leftover fish + veg. More bacon (finish off the pack) with cauliflower mash and asperge.

Day 6 (run day)
1T PB. Coconut milk with quinoa. This is the day my coworkers go out for lunch, so I imagine I'll get something meaty at the restaurant.

Day 7
Vegetable smoothie (from store in bottles). Will try chicken on a salad, which might make me ill. If not, dins: tofu+veg stir fry with shrimp. This is my best friend's birthday, so there will have to be cake in the evening.