Meet the Authors


Lily Nichols

is a Registered Dietitian/Nutritionist, Certified Diabetes Educator, researcher, and author with a passion for evidence-based nutrition as it relates to fertility, pregnancy, and postpartum recovery. Her work is known for being research-focused, thorough, and critical of outdated dietary guidelines.

She is founder of the Institute for Prenatal Nutrition, co-founder of the Women’s Health Nutrition Academy and the author of three books: Real Food for Fertility (co-authored with Lisa Hendrickson-Jack), Real Food for Pregnancy, and Real Food for Gestational Diabetes.

Lily’s bestselling books have helped tens of thousands of mamas (and babies!), are used in university-level maternal nutrition and midwifery courses, and have even influenced prenatal nutrition policy internationally.

Lily’s clinical expertise and extensive background in prenatal nutrition have made her a highly sought after consultant and speaker in the field. She writes at lilynicholsrdn.com

Lisa Hendrickson-Jack

is a Certified Fertility Awareness Educator and Holistic Reproductive Health Practitioner who teaches women to chart their menstrual cycles for natural birth control, conception, and monitoring overall health. She is the founder of the Fertility Awareness Mastery Mentorship™️ program and the author of three bestselling books: The Fifth Vital Sign, the Fertility Awareness Mastery Charting Workbook, and Real Food For Fertility (co-authored with Lily Nichols).

Lisa works tirelessly to debunk the myth that regular ovulation is only important when you want children by recognizing the menstrual cycle as a vital sign. Drawing heavily from the current scientific literature, Lisa presents an evidence-based approach to help women connect to their fifth vital sign by uncovering the connection between the menstrual cycle, fertility, and overall health.

With well over 4 million downloads, her podcast, Fertility Friday, is the #1 source for information about fertility awareness and menstrual cycle health. You can find Lisa’s work at fertilityfriday.com