If you have a BMI > 35, you should take it absolutely. You will discover quite fast if it works (you will feel fed quicker than usual).
I use this value because a BMI that high will cause without any doubt lingering issues with your body, and reducing it is extremelly important for your health (more than anything)
If you have a BMI between 30 and 35, you can probably do without if you pay attention to what you eat and what you cook. I had a BMI of 32, i cut it down with a sleep schuedule, then later fasted 5 days (under medical control) to understand that being hungry was OK and i did not have to eat something everytime i felt a small tingling, and that helped me not eating between meal. I'm not advocating for fasting, what i mean is that for this BMI (probably sightly lower, i have a weird body type), change in lifestyle can be enough and more important for your health. I started cooking and stuff too.
I understand that sleeping and cooking more is not always possible (it took COVID to take out the 45min commute time in my case), so if you don't have time, you should take medication. It has secondary effect, but being clinically obese does too.
If you have a manageable BMI (to me its 28), i don't think it will have any impact, because eating habit can only do so much without sacrificing too much. The only way i managed to loose weight since i hit 28 BMI is making my metabolism faster, IE high stress situations and sport. I started rock climbing (i'm more of a windsurf guy usually), this helped, i will reach 25 in a month or two. A caveat though: my ideal weight for climbing is now a lot lower than what it was before i started, reaching it would put me at around 22 BMI when i was aiming 25 a year ago.
I use this value because a BMI that high will cause without any doubt lingering issues with your body, and reducing it is extremelly important for your health (more than anything)
If you have a BMI between 30 and 35, you can probably do without if you pay attention to what you eat and what you cook. I had a BMI of 32, i cut it down with a sleep schuedule, then later fasted 5 days (under medical control) to understand that being hungry was OK and i did not have to eat something everytime i felt a small tingling, and that helped me not eating between meal. I'm not advocating for fasting, what i mean is that for this BMI (probably sightly lower, i have a weird body type), change in lifestyle can be enough and more important for your health. I started cooking and stuff too.
I understand that sleeping and cooking more is not always possible (it took COVID to take out the 45min commute time in my case), so if you don't have time, you should take medication. It has secondary effect, but being clinically obese does too.
If you have a manageable BMI (to me its 28), i don't think it will have any impact, because eating habit can only do so much without sacrificing too much. The only way i managed to loose weight since i hit 28 BMI is making my metabolism faster, IE high stress situations and sport. I started rock climbing (i'm more of a windsurf guy usually), this helped, i will reach 25 in a month or two. A caveat though: my ideal weight for climbing is now a lot lower than what it was before i started, reaching it would put me at around 22 BMI when i was aiming 25 a year ago.