I highly suspect any highly restrictive diet will have the same effect no matter the restriction. Especially if "junk food" is one of the restrictions.

You hear plenty of stuff like "I went vegan, food tastes so much better now, I've lost weight, I have so much energy, my mood is better, blah blah blah." Same with "alkaline diet," "cabbage soup diet," "low inflammation diet," "bacon diet," "salad diet," "gluten free diet," etc.

Also bananas, apples, and coconut milk have plenty of sugar.

Pick 6 other random non-junk food foods, eat nothing but those for the next couple months, you'll lose weight that way too. Let's just say, off the top of my head, the pork chops, oatmeal, pineapple, orange, green bean, soy milk diet. Try it.