http://www.rulebreakersclub.com/should-you-offer-free-consultations-html/
https://www.precisionnutrition.com/can-personal-trainers-give-nutrition-advice
https://nudgecoach.com/blog/how-much-to-charge-as-a-health-coach
http://marketingforhealthcoaches.com/enroll-clients-structure-free-initial-consultation/