Very creative marketing! I've thought about this a lot, and I would take the approach I used when offering computer training in New Mexico. Offer half-day seminars for a low price to people interested in feeling better and getting healthier. Market the seminars personally and with fliers in places where these people live and work. Once I get them to a seminar there will be a certain percentage that will want one-on-one attention. I will change their lives and show them it can be fun and give real results. Older people generally like me and are not intimidated by me. I feel confident it will work. I've made people who hated computers love them, I can do it with exercise and nutrition in the same way: hand-holding. It will be rewarding.