A summary: your body wants to be the weight you start out at. If you lose weight, your body is going to work against you to get back to its starting weight, even though you be healthier now. It does this through Leptin. If Leptin levels drop, which they do when you lose weight, your metabolism slows (calories hit you harder) and your appetite will be stimulated.
This doesn’t mean you will fail! But you need to watch out for pitfalls. Pay attention if you start to experience the urge to snack or night time cravings, or a desire to eat unhealthy foods. Commit to a high-fiber, plant-based, whole foods, gluten-free diet, and keep an eye on your overall calorie intake (without becoming a compulsive calorie-counter).
But don’t worry! It has been shown that meat intake positively associates with weight gain, and that this association persists AFTER adjusting for total energy intake. Accordingly, a decrease in meat consumption improves weight management. Eating 250 gram meat/day gives a 422 gram gain extra compared to a diet with the same number of calories but less meat!