Mateo Rivera

Mateo Rivera, RDN, is a registered dietitian and former line cook who believes flavor is a health behavior. He earned his BS in Nutrition and Dietetics at The University of Texas at Austin, completed an ACEND-accredited dietetic internship in community health, and picked up a culinary certificate during night classes—experience he brings to Nutrition topics like Hydration, Meal Prep, Plant-Based eating, Portion Control, Smart Snacking, and Mindful Eating. Mateo spent years in community clinics helping clients stabilize energy, digestion, and labs with budget-friendly meals; he later consulted for small workplaces to design snack stations, hydration nudges, and lunch-and-learns that employees actually attended. As an RDN in good standing, he practices within evidence-based guidelines and translates research into plate frameworks, shopping lists, and 20-minute skillet meals. His credibility is practical as much as academic: clients stick with his “cook once, eat twice” plans, and follow-ups show better adherence than restrictive diets. Mateo also partners with Fitness on Weight Loss from a nutrition-led, shame-free angle, emphasizing protein timing, fiber, and joyful plants over strict rules. Expect grocery lists that match a Tuesday at 7 p.m., not just theory.