Nutritionist in Madison, WI | Registered Dietitian | Weight Loss

Margaret Wertheim, MS, RDN, CD is a Registered Dietitian Nutritionist (RDN) in Madison, Wisconsin, who specializes in infertility and women’s health including weight loss, digestive issues, and prenatal nutrition. The food we eat has a profound effect on our level of health and tendency towards disease, energy level, how we look, our state of mind, and general feeling of well-being. Margaret can help you discover the eating patterns that may be causing or contributing to ill health or low energy. Working with Margaret can help you feel and look your best by providing your body with nourishing foods to support health and wellness, fertility, and prevent disease.

Nutritional Counseling Sessions
Comprehensive nutritional counseling sessions include a complete review of your health and nutrition history. We will collaboratively develop a realistic plan including changes to your diet and lifestyle to help you meet your unique nutritional and health goals. Whether your goal is to get pregnant, have a healthy pregnancy, lose weight, improve your digestion, energy levels or focus, Margaret can assist you in achieving your health goals.

Areas of Focus:

  • Healthy and sustainable weight loss
  • Nutrition for Infertility including PCOS, endometriosis, fibroids, age-related infertility, egg and sperm quality issues, unexplained infertility.
  • Prenatal Nutrition
  • Women’s health
  • General Wellness and Disease Prevention 
  • Improve your energy levels
  • GI (Gastrointestinal) related-disorders : Irritable Bowel Syndrome, Crohn’s disease, ulcerative colitis, acid reflux, constipation, diarrhea, celiac disease.
  • FirstLine Therapy: a therapeutic lifestyle change program designed to promote weight loss and address conditions like obesity, metabolic syndrome, high cholesterol, prediabetes, and diabetes.


Initial appt: $95 (60 minutes)

Follow-up appts: $80 (45 minutes)

Insurance Information

While I don’t accept insurance directly, I can provide you with a superbill for requesting reimbursement from your insurance company. I offer $20 off your initial consult ($75 with discount) for Unity and Physician’s Plus members. You must present your insurance card at the time of service.

Schedule your appointment online
Office Locations:
New Moon Wellness: Mondays
Book An Appointment Online
600 Williamson St. Suite F
Madison, WI 53703

Wellness Seminars
Looking for a knowledgeable and engaging speaker for your next event? Top clients have included Mars, Inc, Covance, and Cummins. Contact me for more information.

Contact me for more information or to schedule an appointment:



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