Optimum Nutrition

What's really in your food? Dan Kittredge on nutrient density


Listen Later

In this episode, Dan Kittredge – founder of the Bionutrient Food Association and the Bionutrient Institute – takes us on a journey from his roots on an organic farm to leading a global movement for better food. 

He breaks down the concept of nutrient density, why soil health matters more than ever, and how citizen science is empowering everyday consumers to demand higher-quality food. 

Dan shares simple, actionable steps farmers can take to improve crop nutrition and outlines a bold vision for shifting agriculture’s focus from yield to quality. If you’ve ever wondered what’s really in your food and how it impacts your health, this episode is your wake-up call.

Chapters 

00:00 The Journey of Dan Kittredge

05:34 Understanding Nutrient Density

15:49 The Science of Soil Health and Food Quality

22:29 Empowering Consumers through Citizen Science

23:43 The Nutritional Decline Across Generations

25:32 Transforming Soil Health: A Simple Approach

30:42 Shifting Focus: From Yield to Quality in Agriculture

32:10 The Role of Citizen Science in Agriculture

33:50 Defining Nutrient Density: A New Framework

35:07 The Future of Food: Enhancing Nutrient Density

39:19 Global Outreach: Building a Movement for Change


🔗 LINKS + MENTIONS: 

The Bionutrient Institute is a project of the Bionutrient Food Association.

The Bionutrient Meter is a handheld spectrometer that works through the principle of spectroscopy. The Bionutrient Meter has lights (LEDs - light emitting diodes) that emit light at very specific wavelengths, which then bounce off objects like carrots, or carrot pulp, or spinach, or soil. Some of it is absorbed by the object and turned into other forms of energy, like heat. A light sensor in the device reads how much light bounces back for each wavelength very quickly and multiple times throughout a given measurement.


Want to learn more?

The Power of Medicinal Mushrooms
Fri 7 November 2025 4:00 PM - 8:30 PM
BMA House, London, WC1H 9JP

Join ION for an inspiring evening exploring the science and practice of medicinal mushrooms - with expert talks, a panel discussion, and opportunities to connect.

Find out more and book


If you enjoyed this episode, follow us on social media @ion_nutrition, sign up to our monthly newsletter and why not leave us a comment below.

Interested in learning about nutritional therapy?
Visit www.ion.ac.uk to find out more.

Views expressed by guests are not those of ION, nor does ION endorse any third party products mentioned.

Recorded on Riverside. See for more https://riverside.com/privacy-policy information.


...more
View all episodesView all episodes
Download on the App Store

Optimum NutritionBy The Institute for Optimum Nutrition


More shows like Optimum Nutrition

View all
The Rich Roll Podcast by Rich Roll

The Rich Roll Podcast

11,904 Listeners

Age Better with Liz Earle by Liz Earle

Age Better with Liz Earle

245 Listeners

The Doctor's Kitchen Podcast by Dr Rupy Aujla

The Doctor's Kitchen Podcast

594 Listeners

Feel Better, Live More with Dr Rangan Chatterjee by Dr Rangan Chatterjee: GP & Author

Feel Better, Live More with Dr Rangan Chatterjee

3,903 Listeners

Happy Place by Fearne Cotton

Happy Place

1,101 Listeners

Dhru Purohit Show by Dhru Purohit

Dhru Purohit Show

3,470 Listeners

How To Fail With Elizabeth Day by Elizabeth Day and Sony Music Entertainment

How To Fail With Elizabeth Day

1,228 Listeners

The Rest Is Politics by Goalhanger

The Rest Is Politics

3,858 Listeners

ZOE Science & Nutrition by ZOE

ZOE Science & Nutrition

2,131 Listeners

The News Agents by Global

The News Agents

1,314 Listeners

The Rest Is Entertainment by Goalhanger

The Rest Is Entertainment

907 Listeners

The Rest Is Politics: US by Goalhanger

The Rest Is Politics: US

2,536 Listeners