Welcome to Medi-Slim Wellness

Finally a Weight Loss Program As Unique as You, Weight Loss is Easier than you Think!

Welcome to the best weight loss program in Rancho Cucamonga and Diamond Bar.

Our Promise to You

You will look and feel great and have more energy! You will lose inches quickly and safely without the hunger pangs. The Medi-Slim Diet is designed with you in mind. We embrace your individuality and our team of medical professionals will tailor our program to fit your dietary preferences and your unique lifestyle.

Created by Mohamed Ali M.D., a board certified internal medicine physician, Medi-Slim Wellness Diamond Bar and Rancho Cucamonga combine:

  • A well-designed diet plan
  • An exercise routine program
  • Behavioral counseling (aimed at improving eating habits and stress management to make healthier food choices)

We also offer appetite suppressants if indicated, natural metabolism boosters, food products, and various fat burning vitamin injections that will enhance your energy level and promote your overall health.


We promise to be as committed to your weight loss results as you are. We will help you reach your weight loss goals and keep it off! At the end of your program, you will learn portion control and how to eat a balanced diet.

Look and Feel your absolute best with Medi-Slim Wellness and Get Started for $1!

At our Weight Loss clinics in Rancho Cucamonga and Diamond Bar, we are so committed to getting you started that we are offering this amazing special. Your first visit is only $1!

For $1, you will receive:

  • A full consultation, review of your medical history/records, and physical exam
  • Two vitamin B-6 fat burning injections (Refer a friend who starts the program and you receive four free B-6 injections).

Get started today!



“I am so glad I got to try Medi-Slim. It has changed my life completely. I have lost 30 lbs and feel healthier and happier.” - Cecilia Sanchez

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Meet the Doctors

Doctor Mohamed Ali M.D.

He has been in practice for 10 years in the Inland Empire and hails from Rochester, New York.

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