Weight Management

The SOLUTION to never “DIETING” again.

  • Weight management program based on the medically supervised Serotonin-Plus Program
  • Exclusive serotonin nutraceuticals that curb carb cravings and boost mood
  • Structured dietary program based on real food
  • Robust support from Dr. Bob Posner and the SeroFit Team
New to SeroFit?
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  • Weight management program based on the medically supervised Serotonin-Plus Program
  • Exclusive serotonin nutraceuticals that curb carb cravings and boost mood
  • Structured dietary program based on real food
  • Robust support from Dr. Bob Posner and the SeroFit Team
As seen on
Over 24,000 people have lost weight with SeroFit!

The COMPLETE
Serotonin Solution

to Weight Management

An imbalance of the Serotonin chemical can lead to decreased moods, sweet and carbohydrate craving, and lack of energy. Our patented, natural Serotonin Supplements will balance your serotonin levels by targeting a number of different receptors.

All other serotonin supplements on the market target these receptors using 5-HTP. This is simply a man made version of serotonin. Our solution provides the natural 5-HT pulled directly from the Stinging Nettle Leaf. This is a healthier and more direct approach to balancing Serotonin.

Our supplements have been used by tens of thousands of patients and board certified physicians across the country to increase moods, lose weight, and increase their energy. Welcome to the Serotonin Team where you can take advantage of the full Serotonin Solution.

To maximize results SeroFit may be taken with SeroDaily. While taking SeroFit, SeroDaily should be taken once at lunch.

Calvin & Meggan: Before
Calvin & Meggan: After
By following the program, increasing my protein intake and decreasing the amount of carbs I was eating, and switching my workouts from a low intensity barre class to OrangeTheory Fitness high-intensity interval training, I was able to lose 40 pounds in about 6 months. More importantly, I have now kept the weight off for over 7 months and don’t plan on ever going back.
Meggan C.

See What’s Included

The System

SeroFit & SeroDaily

Dr. Posner has developed natural serotonin supplements that help reduce cravings for carbohydrates. Lower moods and increased craving of carbohydrates disrupt weight loss. These patented, all natural formulas will help reset your mood and control those cravings.

Meal Plans

Eating right is the next step. Using meal replacements is not the answer. We will provide you with delicious, easy to prepare recipes that will fit your new lifestyle.

Working Out

Once you begin eating right, you need to work to burn the fat. Working out doesn’t have to be a chore, this is why we will provide ready-made workouts and guide you through your workout goals.

Online Community

Weight loss is a journey, having others encouragement makes all the difference. You can meet like minded people looking to change their lifestyle in our Community Forum.

Success Tools

We take your weight loss goals seriously and have many tools in place to help you meet them. From our mobile App, to supplements and personal assistance, we have your back.
Track Your Progress

Get The SeroFit App

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Personal Coaching Access

You will be able to chat directly on the App with one of our coaches about your goals, diet, and workout plans.
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Connect Smart Devices

You can connect any bluetooth device, Fitbit, Apple Watch, and Smart Scales to track your fitness goals and health success.
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Dietary Plans

With our App you will have delicious, easy to prepare recipes right in the palm of your hand.
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Workout Plans

We will provide ready-made workouts for you that will assist in your weight loss journey.
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Track Your Success

Our App has an easy access dashboard where you can track the success of your workouts, diet plans, supplements taken, and weight lost.
Karen C – Before
Karen C – After
If you’ve found success with the SeroFit Weight Loss Program in the past, how about leaving us a review? We count on people like you to help others discover the SeroFit program.
Begin Now

Start the SeroFit Program

Subscribe to the SeroFit Program and get access to personalized goals and coaching, recipes, workouts, the SeroFit App, and so much more.

View More Serotonin Products

SeroDaily is a multi-vitamin formulated to deliver the proper amount of vitamins and minerals crucial to your day-to-day health while supplying an additional boost of serotonin to promote a positive mood throughout your regular activities.
SeroPro is a ground-breaking mood enhancement formula designed to help you reclaim your natural happiness. It is formulated to help you with low mood and sadness without the unpleasant side effects of prescription medication.