A general question related to obesity before my gastric sleeve operation

Hello, how are you?
Not necessarily. People with a BMI greater than 40 can lose weight and maintain their "low" weight as long as they continue with appropriate lifestyle habits: diet, exercise, emotional support, etc.
It is probably more difficult to maintain a low weight for people with a BMI greater than 40 who do not undergo weight loss surgery than those who do, since the surgery brings a series of neurohormonal, biochemical, and anatomical changes, which They make the weight loss process more "efficient" and to date it is the most effective method for sustainable (long-term) weight loss, that is, it has been shown to have better results than those people who try to lose weight only with diet, exercise or weight loss medications.
However, weight loss surgery is a great tool to lose weight, and keep that weight down, but it is very important that you continue with good eating habits, diet, exercise, emotional support, even if you have surgery.

While it is certainly more challenging for people with a BMI over 40 to lose and maintain weight without surgery, it is not impossible. With careful planning, dedication, and support, many people with a BMI over 40 can achieve and maintain significant weight loss.
Here are some things that people with a BMI over 40 can do to lose and maintain weight without surgery:
Make gradual changes to their diet and exercise habits. Trying to make too many changes at once is often overwhelming and unsustainable. Start by making small changes, such as eating more fruits and vegetables, reducing portion sizes, and adding in some physical activity.Seek professional help. A registered dietitian or other healthcare professional can provide personalized guidance and support to help you develop a safe and effective weight loss plan.Join a weight loss support group. Support groups can provide motivation, encouragement, and a sense of community for people who are trying to lose weight.Make lifestyle changes that are sustainable. Crash diets and extreme exercise programs are often not sustainable in the long term. Instead, focus on making changes that you can maintain over time.It is also important to remember that weight loss is not a linear process. There will be setbacks along the way, but it is important to stay focused on your goals and not give up.
Here are some additional tips for people with a BMI over 40 who are trying to lose weight:
Set realistic goals. Don't try to lose too much weight too quickly. Aim to lose 1-2 pounds per week.Find ways to make exercise enjoyable. If you don't enjoy traditional forms of exercise, find activities that you do enjoy, such as dancing, swimming, or hiking.Make sure you are getting enough sleep. Sleep deprivation can make it more difficult to lose weight.Manage stress effectively. Stress can lead to overeating and weight gain. Find healthy ways to manage stress, such as yoga, meditation, or spending time with loved ones.Losing and maintaining weight with a BMI over 40 is certainly a challenge, but it is not impossible. With the right approach and support, you can achieve your weight loss goals and improve your overall health.