Hello.
A slow metabolism can be caused by several factors that vary from person to person, but it can be diagnosed by a nutritionist through tests to assess the body's efficiency and metabolic rate.
However, before taking any weight-loss pills, it's recommended to follow a weight-loss diet. Among the best diets for increasing metabolism are the keto diet and intermittent fasting. If you follow one of these diets and adhere to all its requirements, you should notice weight loss, God willing. It's also advisable to consult a nutritionist while following any weight-loss diet.
I wish you success in reaching your desired weight.