How do I overcome an addiction to donuts?

Avoid that store or section in the grocery.

I had a similar problem, every time I went to the local Mall I felt like a cup of coffee and a donut. I always bought a bag of six iced donuts and ate them all, after I felt guilty. How I beat it was that I calculated how much I would spend on coffee and donuts in a year, and It was staggering. I bought myself an espresso machine, and now I make my own cuppacino or flat white before I go out. I don't go near the coffee shops now, and therefore no donuts. It's so cost effective to make at home that you can even experiment with some of the more expensive coffee blends and drink as many as you like. It's great and there are a good variety of espresso machines around now to suit all budgets.

A donut can be 190 to 340 calories, depending on where you buy it and if it’s filed or not...

You can eat a donut if you want but then you’ll have to burn it at the end of your exercising, when you’re done, you met your quota, you want to cool down and stop but oops, now you need to burn 190 to 340 calories more because you ate that donut.

Before you know it, you’ll look at a donut and just see 20 to 45 minutes more exercising, once you already depleted your blood sugar level.

Then you’ll be very happy after your exercise routine, when you feel “spent”, that you can cool down, stop and replenish (eat...but not a donut) instead of having to keep going just because you ate a donut.

You have to burn your donut’s calories after you’re done with your routine so it’s physically hard and makes a better impact.

I do not eat donuts, they don’t taste bad but all I see is something fried with gazillions of calories.

But I got over my addiction to cookies and candies. I used to eat about 150 calories worth daily. But then I had to bike 5 more miles on my stationary bike or walk/jog 2 more miles, on top of my exercising. It is one thing to bike 5 miles but it’s another to bike 5 miles after you just biked 25 miles in 2 hours and then those extra 5 miles are excruciating (24 more minutes). Then I would reach for a cookie, and just thinking about those 5 extra miles...not worth it anymore. Maybe it would be worth it if it would take me 24 minutes to eat the cookie(s).

Edit:

When I got over my cookies/candies need, I was counting my calories intake and expenditure. BUT I did not count the cookies/candies in the calorie intake and I did not count the exercising to burn them off in the calorie expenditure, as they cancelled each other out. It’s like they never existed so it was easier to get rid of them (since they did not exist, right? it’s all in the mind).

Also, not being able to acknowledge the hardest part of exercising (those 5 extra miles biking or those 2 extra miles walking/jogging) was just plain annoying, so I stopped doing that, so I stopped eating cookies and candies.

At one point, I was still buying them but then they got old and stale so they would eventually end up in the garbage can, which was a great victory for me, like “at least it’s not my stomach so I won’t have to bike for those” with mixed feelings of guilt about wasting food and money when 2 billion people on the planet do not have access to enough food.

Sometimes I pass the cookies section at my store and the garbage can pops into my mind.

start eating veggies