Twinlab, a supplements manufacturer based in New York City and American Fork, Utah, named Tom Tolworthy president and CEO.

Irvine, Calif.-based ingredients supplier Cyvex Nutrition named Puya Yazdi medical director.

Grecian Delight Foods, a Mediterranean-inspired foods manufacturer in Elk Grove Village, Ill., added Tonia Rawson to its research and development team.

Gilbert, Ariz.-based Wisdom Natural Brands appointed Laura Setzfand vice president of sales of its SweetLeaf Stevia brand. 

San Francisco-based packaged foods company Diamond Foods appointed Richard Wolford to its board of directors.

New York City-based ingredients supplier Kyowa Hakko named Mary Murphy Southeastern sales manager.

Des Moines, Iowa-based ingredients supplier Kemin Industries hired Ilaria Scaglia as technical sales manager for its food technologies division in Italy.

Schiff Nutrition International, a supplements and nutrition bar manufacturer in Salt Lake City, named Jon Fieldman senior vice president of operations.

Los Angeles-based nutrition and personal care products company Herbalife elected Carole Black and Michael Levitt to its board of directors.

Nourish America, an Ojai, Calif.-based nonprofit that donates nutritious food and supplements to Americans in need, elected Andrew Jacobson, Gillian Christie, Eric Schnell, Laura Setzfand and Rakesh Amin to its board.

Washington, D.C.-based National Association of Wholesaler-Distributors’ Institute for Distribution Excellence elected Joseph Nettemeyer chairman of the board and added Art Kostaras and George Pattee to the board of directors.

Nature’s Formulary, a Clifton Park, N.Y.-based Ayurvedic supplements and personal care company, appointed Amber Vitse director of Ayurvedic education.

Kenro Nakamura was named vice chairman of Mission Viejo, Calif.-based supplements company Wakanuga of America and executive vice president of Osaka, Japan-based Wakanuga Pharmaceutical.

Matawan, N.J.-based sports nutrition company PacificHealth Laboratories’ board of directors elected company founder Robert Portman chairman of the board.

Norwich, N.Y.-based Agro Farma, maker of Chobani yogurt, appointed Francoise Mattice chief financial officer.

Jarrow Formulas, a Los Angeles-based supplements manufacturer, appointed Rory Lipsky marketing director.

Youngevity Essential Life Sciences, a nutrition company in San Diego, appointed Brent Jensen vice president of business development.

Jeff Cohen, founder of Santa Clarita, Calif.-based natural energy-bar company Granola Gourmet, appeared on the ABC reality show “Shark Tank” in March to speak about his company’s growth since he was on the show in 2009.

Hermosa Beach, Calif.-based Zico Beverages hired Steven Houston as vice president of manufacturing.

Zoë Gardner of Sebastopol, Calif.-based herbal products company Traditional Medicinals earned the American Herbal Products Association’s Insight Award for her revisions of AHPA’s Botanical Safety Handbook.