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Lifestyle Management through Fitness and Nutrition

The Dangers of an Unhealthy Lifestyle:

We live in a fast-paced, high-stress world where we tend to focus less about ourselves and more about those around us. Oftentimes, this results in a cascade of unhealthy behaviors that can put our lives in danger. We become less physically active and eat calorie-dense but lower-nutrient food, which can lead to obesity. As we know, obesity can affect every major organ and can cause diabetes, heart disease, neurological diseases, cancer, skin diseases, sleep disorders, hormonal dysfunction, depression, and many more.

Our priority is to provide a multifaceted approach to help change your life. We understand that this can be a difficult journey, but with the support and resources we provide, we will make the transition into a healthy life as seamless as it can be. This journey must be a partnership, as we need you in this process. As much as this is about our expertise, it is also about your dedication. Come join us.


Meet Our Lifestyle Management Team:

This team will provide medical care to rule out any endocrine causes of your obesity, as well as nutritional and fitness expertise to make your journey as healthy and sustainable as possible.

  • Board Certified Obesity Medicine Endocrinologist
    • Anastasios Manessis, MD, FACE, ABOM, ECNU
  • Mid-Level Practitioners
  • Registered Dieticians
  • Personal Trainer
  • Marketing and Program Manager


We provide different types of program to suit your individual needs. We offer full, partial, or no meal replacement programs that are tailored to your specific nutritional needs. These programs can be combined with our fitness programs or can be done alone. However, for healthy lifestyle optimization, we strongly recommend that patients do both the nutrition and fitness programs as weight loss increases with a combination of diet modification and an increase in physical activity.

Contact us about the neXendo program at and 917-755-2007.

woman walking up stairs

OPTIFAST:  26 Week Program

OPTIFAST is a medically monitored program designed to treat the whole you-not just your weight.  It combines support, counseling, and comprehensive lifestyle education with a great-tasting meal replacement to help you lose weight and significantly reduce weight-related health risks.  Average weight loss over the 26 week program is about 50 pounds, however, weight loss varies from person to person.

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women power walking

OPTIFAST Light: 26 Week Program

This program is a great option for those who do not want to go on our complete fast and would like to eat one meal a day. The Light Program combines meal replacements with one light meal a day. This program, like the full OPTIFAST program, combines support, counseling, and comprehensive lifestyle education with a great-tasting meal replacement to help you lose weight and significantly reduce weight-related health risks.

Beyond: 26 Week Program

This is our food-based weight loss program. The curriculum in this program is designed to teach you the skills for both successful weight loss and maintenance. Visits are taught by registered dietitians with expertise in nutrition, exercise, and lifestyle behavioral change through a virtual platform. Calorie levels are based on individual factors and are designed to promote reasonable weight loss of one to two pounds of weight per week.


All patients interested in the program will undergo a thorough assessment by our personal trainer, Eileen Pappas. After the assessment, you will have the option to purchase personal training session packs. Each personal training session will be 45 minutes long and will consist of one-on-one training with Eileen.

Contact us about the neXendo program at and 917-755-2007.

In-Office Gym

The neXendo gym, located within the Long Island City office, is equipped with all the tools for a variety of exercise programs including cardiorespiratory, strength and flexibility components and catering to the many needs of different patients.

  • Treadmill
  • Elliptical
  • Stationary Bike
  • Plyometric Boxes
  • Full Set of Free Weights
  • Medicine Balls
  • Resistance Bands
  • Jump Ropes
  • Stability Balls
  • Bosu Trainer
  • Yoga Mats
  • TRX Suspension Trainer

Korr Metabolic Rate Testing

Metabolism is a key determinant in the success of a weight loss journey. The Korr Metabolic Rate Test measures resting metabolic rate, calculates the speed of your metabolism, and calculates the optimal amount of calories you should consume in order to lose weight. This is an invaluable tool in starting and tracking your progress on this journey. Our goal is to help increase and maintain your metabolism even as you lose weight by combining diet modification and increasing physical activity.

Take Control of Your Endocrine Condition!