About Sigma Nutrition

Founded in early 2014 by Danny Lennon, Sigma Nutrition is dedicated to providing objective, high-quality, evidence-based information on nutrition and health science.

Our mission is to serve as a trusted resource for dietitians, nutritionists, health and fitness professionals, researchers, and anyone deeply interested in the science of nutrition.

Through a diverse range of educational materials—including written articles (such as our signature Sigma Statements), lectures, seminars, and our flagship podcast, Sigma Nutrition Radio—we aim to bridge the gap between cutting-edge scientific research and practical application.

Since its launch in April 2014, the podcast has featured world-class experts and has become a go-to source for those seeking thoughtful, evidence-driven discussions on nutrition and health topics.

Our Content Creators

Danny is the founder of Sigma Nutrition. He is the long-time host of the popular podcast Sigma Nutrition Radio, and is also a respected educator in the field. He has spoken at conferences and events all over Europe, the United States and Australia. And he is the co-creator of the course Applied Nutrition Literacy with Dr. Alan Flanagan.

Danny is currently a member of the Advisory Board of the Sports Nutrition Association, the global regulatory body responsible for the standardisation of best practice in the sports nutrition profession. He is also an Advisory Board member of FoodFacts.org, a non-profit whose mission is to combat misinformation and pseudoscience in the nutrition field.

Danny has a master’s degree (MSc.) in Nutritional Sciences from University College Cork, Ireland. Previous to this Danny also completed a BSc. Degree in Biology and Physics (with concurrent diploma in education), followed by a year teaching those subjects.

In the past, Danny  has worked as a nutrition practitioner with a wide variety of clients. He became well known for his role as a performance nutritionist to professional mixed martial artists & other combat sport athletes. Along with Jordan Sullivan, he is the co-author of “Making Weight: The Ultimate Science Based Guide to Cutting Weight for Combat Sports”.

While his professional passion is nutrition science, it falls a long way behind his love for Arsenal, live music and dark, deadpan humor.

Dr Alan Flanagan, PhD is a Postdoctoral Research Fellow at the University of Surrey, UK, where he previously completed a PhD in nutrition and a master’s degree in Nutritional Medicine.

Dr. Flanagan is the founder of Alinea Nutrition, an online education hub dedicated to providing impartial, science-based nutrition reviews and analysis.

Dr. Flanagan is a regular co-host of Sigma Nutrition Radio. He also produces written content for the Sigma Nutrition site, as part of his role as Research Communication Officer.

Why Trust Sigma Nutrition?

  • Content at a specific level – We DON’T do nutrition basics and simple tips or make content for the general public. Our content is geared specifically for nutritionists, dietitians, health professionals, nutrition science students and academics.
  • Ethical & objective information – Help us fight back against the overwhelming amount of pseudoscientific nutrition information that is created. We don’t promote a specific diet. We only care about accurate representation of nutrition science.
  • Trusted by nutrition academics and renowned dietitians/nutritionists – Our audience includes a large number of people working in nutrition research and high-level dietetics and medical positions.
  • Domain expertise – All of our team creating podcast episodes and written material come from a nutrition science background academically. And our podcast guests are legitimate experts in the topics they discuss.
  • We rely on you! – We don’t write fear-mongering diet books. We don’t run ads for pseduoscientific “wellness” products. We don’t sell magical “cure-all” solutions to profit off people. Sigma Nutrition relies solely on you, it’s supportive listeners, to fund our content creation and to keep the bills paid. If you want to do so, check out Sigma Nutrition Premium.

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