Willpower is like a muscle; the more you work it, the more fatigued it gets. It also has a limit to how far it can be stretched before you concede. The number of decisions that revolve around food and drink is surprisingly large, especially in a modern world with so much choice.
What this means is... if you're leaving all your decisions about food open - like a bridge that you cross when you get to it - you require a lot of willpower to make the correct food choices every time.
So, what is the solution? Find some go-to's and stock yourself up! Those meals that you can easily fall back on. If you know me, you know my go-to's... oats, some kind of eggs and yogurt bowls.
The key is to choose meals that are easy to mix, match and vary, so you never get bored. Anything with toppings it always a good start, smoothie bowls are another great example!