Wanting to see her adopted diet and lifestyle reflected online, Tam launched her food blog, Nom Nom Paleo, in October 2010. Noted for its humor, high-quality recipes, and distinctive photography, Tam’s website has earned multiple awards, including Saveur Magazine’s Best Food Blog Award (Special Diets). By the fall of 2014, Nom Nom Paleo was receiving 110,000 page views per day (3.3 million page views per month), with The New York Times calling Tam “something of a Martha Stewart of Paleo.”

In 2014, Tam’s Nom Nom Paleo cooking app for the iPhone and iPad earned a People’s Voice Webby Award in the Lifestyle (Tablet & All Other Devices) category.

Tam’s first cookbook, Nom Nom Paleo: Food for Humans, became a New York Times bestseller, and was recognized as one of the Best of the Best Cookbooks of 2013, as well as one of the best cookbooks of 2014 by Serious Eats and America’s Test Kitchen. Six months after the cookbook’s release, Tam’s publisher reported that it was in its seventh printing, with 150,000 copies in print. In March 2015, Tam’s cookbook was nominated for a James Beard Foundation Award.

Tam’s second cookbook, Ready or Not!, debuted in August 2017 on the New York Times bestseller list, and reached #1 on both the Wall Street Journal Bestsellers List and the Publishers Weekly Bestsellers List for Hardcover Nonfiction.