EP. 095

Danny Lennon – 095


Danny is the founder of Sigma Nutrition, a company providing educational media content on evidence-based nutrition & performance. Sigma Nutrition also provides an online coaching service to a wide array of clients. Danny works as a performance nutritionist to a number of professional MMA fighters and boxers. 

Danny hosts the top-ranked weekly podcast, Sigma Nutrition Radio. Each week a world-renowned expert from one of the fields of nutrition, health, medicine, or sports performance, comes on the show to dive deep into a specific topic with Danny. The show is regularly at the top of the iTunes health and fitness charts, having amassed over 2.8 million downloads as of January 2018.

Danny has an academic background in science and nutrition, including earning a master’s degree (MSc.) in Nutritional Sciences at University College Cork. During this time Danny was involved in research on vitamin D, directly under the world-renowned researcher Professor Kevin Cashman. Previous to this Danny also completed a BSc. Degree in biology and physics education and spent a year teaching these subjects.

Outside of the nutrition world, Danny is a Brazilian Jiu-Jitsu blue belt, competes as a drug-free powerlifter and is a life-long Arsenal fan.

Show Notes:

Websites and Social Media Links:

Website – Sigma Nutrition

Facebook –  Sigma Nutrition

Twitter –  @NutritionDanny

Instagram – dannylennon_sigma

Books Mentioned:

Nutrient Timing: The Future of Sports Nutrition

The Second Mountain


Articles Mentioned:

High Caloric intake at breakfast vs. dinner differentially influences weight loss of overweight and obese women

Chrononutrition: Why Meal Timing, Calorie Distribution & Feeding Windows Really Do Matter

Early Time-Restricted Feeding Improves Insulin Sensitivity, Blood Pressure, and Oxidative Stress Even without Weight Loss in Men with Prediabetes.

Podcasts Mentioned:

ATSW – Episode 210: Greg Potter – Circadian Rhythm masterclass


Resources Mentioned: 

Greg Nuckols

Greg Potter

Alan Flanagan  

Daniela Jakubowicz

Ciaran O’Regan

Iain Dunican

Louise Burke

Gary Slater

Lauren Bannock


0:00 – 9:39 – Robbie’s intro’s the show and asks Danny about his interest into chrononutrition 

9:40 – 13:23 – Robbie asks Danny to discuss his 4 cycles for viewing chrononutrition through

13:24 – 22:17 – Robbie asks Danny to explain what a Zeitgeber is?

22:18 – 24:44 – Robbie asks Danny about how long it takes to realign someone’s circadian rhythm

24:45 – 33:01 – Robbie asks Danny to outline his 4 sub-areas of chrononutrition

33:02 – 42:17 – Robbie asks Danny about the placement of time-restricted windows across the day

42:18 – 52:47 – Robbie asks Danny about some caveats to his recommendations for taking in the majority of your calories earlier in the day

52:48 – 57:34 – Robbie asks Danny how his research into chrononutrition has changed his own nutritional habits

57:35 – 59:53 – Robbie asks Danny what is he currently reading

59:54 – 1:02:18 – Robbie asks Danny where people can find out more about him and his work

1:02:19 – 1:02:45 – Robbie wraps up the show!