Thinking about starting a business

I am thinking about starting an online nutrition business. I want to provide personalised diet plan to people aiming to gain muscle, lose fat, diebetes etc. Do y'all think would this be a good idea? Is there a demand for personalised diet plan in Guwahati? I am also thinking about partnering with gyms and supplements shops for reference.

Any advice would be greatly appreciated. Thank you.

A little about me :

I am 21 year old college student, do not have a degree in nutrition. But I have been going to the gym since the last 5 years and have a great knowledge on nutrition, based on my own experience. I have given diet plans to my friends who started going to the gym. Free of cost ofcourse. As i am student, I want to start a side hustle to manage my expenses.