It's not hard to learn a few of the tactics used by professional journalists. Start out with contributor-written trade and business publications. Newsletters for local and state dietetic association and trade associations are also good bets. Look online as well. Many health-related and women's websites are hungry for articles from professionals.
Newspapers can also be a good bet, particularly smaller local papers or business publications.
Consider submitting an op-ed piece or pitching an idea for a story. Even writing a letter to the editor can give you visibility. Reporters are always looking for expert sources, so sending a media kit to reporters who cover what you do could be a good idea. Just make sure you give good soundbite. There's nothing reporters like better than a quote that's short, informative, and lively.