Tiffany A. Donahue, Rd, Ldn

Philadelphia's nutrition service directory holds 41 listings, and every single one comes with a phone number, so you can start calling right away instead of hunting for contact details. Thirty four of these also list a website, giving you a way to check hours, services, or credentials before you dial. Clusters show up in zip codes like 19120 and 19146, each with three listings, and 19111 with two, so if you're in one of those areas you likely have a few nearby options to compare.

None of these listings carry a Sponsored label yet, since paid placement for this category hasn't rolled out in Philadelphia, so what you see here is a plain directory order rather than a curated or paid lineup. If you run one of these practices and notice your website field is blank even though your phone number is listed, you can claim your entry and add the missing link yourself, which gives someone comparing providers in your zip code more to go on before they pick up the phone. Call two or three that fit your needs and ask directly about services offered.