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At F-Factor you’ll work with a registered dietitian who is certified in F-Factor’s proprietary nutritional method, which is based on more than 15 years of clinical experience helping clients achieve their health and weight goals.

Tanya Zuckerbrot MS, RD photo credit Fadil Berisha

Tanya Zuckerbrot MS, RD photo credit Fadil Berisha

Tanya Zuckerbrot, MS, RD, is a nationally-known dietitian and the creator of the renowned F-Factor Diet, the only dietitian-created program for weight-loss and optimal health that is based on fiber-rich nutrition.

Tanya has worked in private practice in Manhattan for more than 15 years and her success was profiled in the Sunday Styles section of The New York Times.

The F-Factor Diet evolved from Tanya’s early work with patients to help lower cholesterol or control diabetes. She discovered that all of her patients improved their clinical conditions – and lost weight without hunger- by following a lifestyle diet that was rich in dietary fiber.

Tanya is the author of two bestselling weight loss books: The F-Factor Diet: Discover the Secret to Permanent Weight Loss (2006, G.P Putnam & Sons), and The Miracle Carb Diet: Make Calories and Fat Disappear the F-Factor Way – with Fiber! (2012, Hyperion).

Tanya holds a Master’s degree in Nutrition and Food Studies from New York University and completed a two-year dietetic internship at NYU Medical Center. She is an accredited member of the Academy of Nutrition and Dietetics and the NY State Dietetic Association. Tanya is a Board Certified Specialist in Pediatric Nutrition and completed her CDR Certificate of Training in Adult Weight Management as well in Childhood and Adolescent Weight Management. She is also a member of the American Association of Diabetes Educators.

Tanya resides with her three children in Manhattan.


Shana Rubenstein RD 1

Shana Rubenstein, RD, F-Factor

Shana Pantirer, RD, is a Registered Dietitian, New York State-Certified Dietitian/Nutritionist, and the Senior Dietitian at F-Factor Nutrition where she specializes in weight loss and medical nutrition therapy for chronic conditions such as diabetes and cardiovascular disease. Her expertise also includes family and pediatric nutrition counseling.

Shana’s interest in nutrition began as an overweight adolescent with a insatiable sweetooth. At age 12, she attended a weight loss camp where she lost 15 pounds – an experience she describes as so ‘life-changing’ that it inspired her career choice helping those who struggle with their weight.

Shana holds a BS in Nutrition Science from Indiana University. As a Registered Dietitian, Shana’s clinical experience includes extensive work in hospitals and outpatient diabetes centers throughout Manhattan.  At F-Factor, she  says she is living her dream teaching people to take control of their weight and health by making better food and lifestyle choices.

Shana’s passion for nutrition extends into all areas of her busy life. She is an avid cook who enjoys creating recipes and trying new ingredients and preparation techniques. Shana and her husband Marc reside in Manhattan where they share their love of sports, fitness and adventure travel.

Shana is an active member of the American Dietetic Association and the Greater New York Dietetic Association.


Danielle Hamo, RD, F-Factor

Danielle Hamo, RD, F-Factor

Danielle Hamo, RD is a Registered Dietitian and Licensed Nutritionist at F-Factor Nutrition where she sees clients for weight loss, management of chronic diseases such as diabetes, high blood pressure, heart disease and for overall health and longevity.

As a former fashion model, Danielle understands the motivation to be lean and fit while staying healthy and living an enjoyable and sustainable lifestyle.

Danielle holds a Bachelor of Science in Nutrition and Dietetics and has worked as a clinical dietitian in numerous hospitals where she gained experience in medical nutrition therapy and disease prevention and management. Danielle was also the nutritionist for The Fresh Diet, a gourmet meal delivery company. She also enjoys writing, and has contributed to many publications as well as having her own health blog.

Danielle was born and raised in Tel-Aviv, Israel, received her degree from Florida International University and and is currently living in Manhattan. She is also a member of the Academy of Nutrition and Dietetics.


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