Make knowledge useful.
Give people the information to choose. Start with the culture names, ingredients and formulation, with the complete label close at hand.
Explore our scienceBefore Natren, there was a family yogurt business. Natasha and Yordan Trenev carried that knowledge of living cultures into a company of their own in 1982.
Meet the founder
Natasha Trenev grew up in a family whose work revolved around cultured foods. After moving to California, the family established a yogurt business in Glendale. Living cultures were part of her everyday life long before they became her professional focus.
That experience shaped a lasting interest in how cultures are identified, handled and understood. In 1982, Natasha and her husband, Yordan, founded Natren in California. The company grew around an enduring focus on the cultures themselves and the people who choose them.
Read Natasha’s own account
Natasha brought a family background in cultured foods to a wider purpose: helping people understand probiotics and ask better questions about the products they choose. Her work as a founder, author and educator runs through Natren today.
Her 1998 book, Probiotics: Nature’s Internal Healers, is part of that long commitment to education. Knowing the culture, understanding the formula and caring for the finished product remain central to the Natren approach.
From the family business to a company of her own, with education running through it all.
After graduating from UCLA, Natasha joined the family yogurt business full time.
Natasha’s accountNatasha and Yordan Trenev founded Natren in California, bringing their commitment to living cultures into a company of their own.
The company historyAvery published Natasha’s book Probiotics: Nature’s Internal Healers, continuing her work as a consumer educator.
The publisher’s recordIn a 2008 interview, Natasha dated the opening of Natren’s Westlake Village facility to 1999.
Read the 2008 interviewGive people the information to choose. Start with the culture names, ingredients and formulation, with the complete label close at hand.
Explore our scienceKnow who makes the product and how it is prepared. Our own California facility keeps human-probiotic cultivation, formulation and production in our hands.
See our manufacturing approachMake product care practical, from the way an order is packed to how a bottle is stored at home. Follow the directions that belong to your formula.
Read about product careThree dated letters from clinicians and a nutrition researcher, speaking about Natren, ProTren and the people behind them.
On Natren and its approach to quality.
“I am writing this letter to express my support, longstanding appreciation, and optimism for Natren probiotics”
Financial relationship or compensation is not stated in the letter.
On working with Natasha and the Natren team.
“Working with Natasha and her team has been delightful”
The letter describes a working relationship with Natren. Compensation is not stated.
On ProTren’s company mission and ethics.
“their company mission and ethics are aligned with the greater good, and not just profit-taking.”
The letter describes practice use and collaboration with ProTren. Compensation is not stated.
These letters express individual opinions. They do not establish clinical outcomes or endorsement by an institution.
Explore the professional resourcesExplore the collection with the ingredients, formats and details that matter to you.
