Dr. Barrie Tan

Founder of American River Nutrition (1998)

Barrie is first and foremost a scientist with a Ph. D. in Chemistry/ Biochemistry, started as an assistant professor at the University of Massachusetts in Amherst (Chemistry, Food Science & Nutrition). His mission at American River Nutrition is to deliver the highest quality nutritional products based on sound scientific research.

For the last 35 years, Barrie has immersed himself in the world of Vitamin E and is considered one of the world’s foremost experts, credited with discovering tocotrienol in 3 major natural sources – Palm, Rice and Annatto. His first discoveries were in Palm & Rice, but due to their high levels of tocopherol, they also lacked potency. Barrie continued his research and was soon rewarded when he found the best-in-class tocotrienol in the Annatto plant!

Barrie’s relationship with Annatto has spanned 20 years and multiple clinical trials across chronic diseases – Annatto tocotrienol has proven clinical benefits. To read more about these trials, please click the “see more” button to the right.


American River Nutrition is the producer of DeltaGold® tocotrienols, the most beneficial form of vitamin E for cardiovascular and metabolic health, as well as other health benefits. American River products are manufactured by the company in their 24,000 sq. ft. Hadley, MA GMP compliant facility, using a proprietary process leading to the purest form of natural tocopheral-free tocotrienols available.