#297: Cliff Harvey, PhD – Carbohydrate-Restriction, Ketosis & Neuroprotection

Sigma Nutrition Radio

Danny Lennon

Sigma, Dietetics, Evidencebased, Nutrition, Training, Health & Fitness, Science, Diet, Fitness, Evidence, Bodybuilding, Health

4.8 • 626 Ratings

🗓️ 3 September 2019

⏱️ 66 minutes

🔗️ Recording | iTunes | RSS

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Summary

Cliff Harvey has a PhD in Nutrition from Auckland University of Technology (AUT), with his research focus being on ketosis, ketogenesis, and individual responses to diet. His research interests include MCTs, keto-induction, “keto-flu”, and finding appropriate carbohydrate intake for individuals based on their metabolic state, activity and ethno-genetic factors.

He is a Registered Clinical Nutritionist in New Zealand, with over 20 years of experience as a practitioner. Cliff was one of the very first practitioners to begin prescribing and working with low-carb, high-fat (LCHF), ketogenic, and lower-carb, higher-protein diets in the late 1990s. Cliff is the founder of the Holistic Performance Institute.

SHOW NOTES: https://sigmanutrition.com/episode297

Transcript

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0:00.0	Hello and welcome. This is Sigma Nutrition Radio and I am your host, Danny Lennon.
0:05.6	We are here to have discussions about nutritional science and health sciences.
0:11.2	Ketogenic diets, ketosis, carbohydrate restriction, low carb, high fat, these are all facets of
0:18.9	nutrition that have grown in considerable popularity over the last number of years,
0:23.6	but have been around for several decades or longer in some contexts,
0:28.6	and have generated a lot of discussion on probably two ends of an extreme.
0:33.6	On one end, we have the extreme where it's seen as the panacea of everything that there is nothing that a ketogenic diet cannot fix and that everyone should be doing this and people with very limited knowledge of the actual research and physiology in this area
0:51.8	promoting this as something that everyone should be doing based on
0:55.0	their own anecdotal evidence. On the other end of that spectrum, though, we have an equally
1:00.4	problematic extreme, where because of those issues I just mentioned, people try and push back
1:06.9	against that, but do so in a way that over-emphasizes the problems in the area or dismisses
1:14.9	some of these ideas out the gate without really that being an evidence-based position, because
1:21.9	we know quite clearly there are important applications of something like a ketogenic diet
1:27.0	for carbohydrate restriction
1:28.9	for low carbohydrate diets. There are applications where they should absolutely be almost a
1:34.7	default position. There are others where a large, large number of people will benefit from something
1:41.4	like a low carbohydrate diet or some degree of carbohydrate restriction.
1:45.8	And so trying to ignore that by making a type of running joke or meme about anything that's
1:51.8	related to ketosis, ketones, anything to do with low carbohydrate fat in general is problematic. And so we have to try and work out, well,
2:03.5	what's that useful point in between? And I think I'm probably preaching to the choir a bit in
2:08.8	this, given the usual audience that this podcast have. I don't see these behaviors typically
2:14.9	in most of the people that listen to this conversation, especially
	...

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