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PODCAST

Sigma Nutrition Radio

Discussions about the science of nutrition, dietetics and health. The podcast that educates through nuanced conversations, exploring evidence and cultivating critical thinking. Hosted by Danny Lennon.

health & fitness nutrition

All Episodes

51:16

#489: Inequalities in Diabetes Outcomes for African &...

Sigma Nutrition Radio ·

2023/07/18

Links: Go to episode page (with resources) Receive Danny's weekly emails Twitter: @NutritionDanny Subscribe to PREMIUM About This Episode: In the UK, there is a threefold higher incidence of type 2 diabetes in UK African and Caribbean (AfC) communities, compared to the general population. And ethnic inequalities in type 2 diabetes treatment and outcomes have been documented. And so addressing these inequalities is an urgent healthcare priority in the UK. Differences in outcomes relate to

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01:27:47

#488: Does Time of Day Impact Hunger, Appetite &...

Sigma Nutrition Radio ·

2023/07/11

Links: Episode page (with links to resources) Receive Danny's weekly emails Subscribe to PREMIUM About This Episode: The topic of whether hunger and satiety are affected by the time of day has generated considerable interest within the nutrition research community. Researchers have been particularly intrigued by the potential influence of circadian rhythms on caloric intake throughout the day. Initially, a number of studies proposed that consuming high energy intakes in the morning could lead to

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01:15:00

#487: Weight Cutting in Combat Sports – Jordan Sullivan

Sigma Nutrition Radio ·

2023/07/05

Links: Join notification list for book pre-orders Go to episode page (w/ resources) Subscribe to Sigma Nutrition Premium About This Episode: “Weight cutting” is a common practice in weight-class based sports. And typically, combat sport athletes have reported cutting the largest amounts of weight for competition. The concept of cutting weight is based on the assumption that a size advantage gives a performance advantage in combat sports. And by getting into a lower weight class than their “normal”

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01:21:05

#486: Blood Glucose Spikes: How High is Too High? –...

Sigma Nutrition Radio ·

2023/06/27

Links: Go to episode page (with resources) Receive Danny's weekly emails Subscribe to PREMIUM Twitter: @NutritionDanny Instagram: @dannylennon_sigma About This Episode: Peaks in blood glucose (or “blood sugar spikes”) are commonly highlighted as something harmful to health. And, of course, an excessively high blood glucose response to a meal can be problematic, or at least indicate there is a problem. However, elevations in blood glucose after eating are a normal physiological response. And “bad”

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45:14

#485: Does Menopause Alter Appetite?

Sigma Nutrition Radio ·

2023/06/20

Links: Go to episode page Receive Danny's weekly emails Subscribe to PREMIUM About This Episode: Menopause is commonly associated with hormonal changes and physical symptoms, such as hot flashes, mood changes, sleep issues, and weight gain. Based on anecdotal reports, another interesting question emerges: what is the potential impact of menopause on appetite? As women undergo this transformative phase, many report fluctuations in their food intake and body weight, raising the question: Does

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13:38

SNP18: What is a Healthy Low-Carb Diet?

Sigma Nutrition Radio ·

2023/06/13

Links: Go to episode page Subscribe to PREMIUM Receive Danny's weekly email Twitter: @NutritionDanny Instagram: @dannylennon_sigma About This Episode: Note: This is a Premium-exclusive episode, so in order to listen to the full episode you’ll need to subscribe to Sigma Nutrition Premium. Low-carbohydrate diets come with a list of reported benefits, and research does show benefit for a number of different outcomes. However, many influencers and advocates of low-carb diets routinely add commentary

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01:15:37

#484: Is Metabolic Adaptation an Illusion? – Eric...

Sigma Nutrition Radio ·

2023/06/06

Links: Episode page with resources Subscribe to PREMIUM MASS Research Review About This Episode: Metabolic adaptation refers to the process by which the body adjusts its metabolism in response to changes in energy intake or body mass. This adjustment can occur in both directions, meaning that the body can increase or decrease its energy expenditure in response to changes in energy intake or body weight. When someone consumes fewer calories than their body requires for energy, the body will respond

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01:18:00

#483: What are the Effects of Very High Fiber Intakes?

Sigma Nutrition Radio ·

2023/05/30

Links: Episode page (with links to studies mentioned) Subscribe to PREMIUM Receive Danny's free weekly email About This Episode: The benefits of consuming a higher fiber diet have been consistently demonstrated in nutrition research. Epidemiology clearly shows that higher intakes, compared to lower intakes, leads to a risk reduction for a range of diseases, including cardiovascular disease and colon cancer. And based on this epidemiological evidence, most dietary guidelines recommend dietary

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01:06:49

#482: Carbohydrate Quality & Health – Andrew...

Sigma Nutrition Radio ·

2023/05/23

Links: Go to episode page (with resources) Subscribe to PREMIUM Receive Danny's weekly email About This Episode: In the last couple of decades, carbohydrates have experienced an increasing amount of negative campaigning. In general, the main argument is that carbohydrates have been viewed as the root cause for obesity, diabetes and several other diseases including heart disease and behavioral disorders. However, there can often be a lack of appreciation that not all carbohydrates are equal in

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22:57

Is Personalized Nutrition Superior to General...

Sigma Nutrition Radio ·

2023/05/16

Links: Go to episode page (with resources) Subscribe to PREMIUM Receive Danny's free weekly email About This Episode: “Personalized nutrition” has been promoted as an approach that will improve people’s health by prescribing them specific dietary recommendations based on their own genetic and phenotypic data. The premise is that given we each respond differently to foods, having general dietary recommendations may be doing many people a disservice. And by using an array of personal data, it is now

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01:30:10

#481: Why Saturated Fat Really Does Impact Heart...

Sigma Nutrition Radio ·

2023/05/09

Links: Go to episode page (with further resources) Subscribe to PREMIUM Get Danny's weekly email, the Sigma Synopsis About This Episode: While it has long been acknowledged that high intakes of saturated fat can increase risk of atherosclerotic cardiovascular disease due to their impact on blood lipids, there are some who question the association between saturated fat and heart disease. Specifically, they may state that the evidence for this association is weak or non-existent, typically by

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01:10:12

#480: How Much Fiber Do We Need for Good Health? –...

Sigma Nutrition Radio ·

2023/05/02

Links: Go to episode page (with resources) Subscribe to Sigma Nutrition PREMIUM Receive Danny's free weekly emails About this Episode: The beneficial impact of a high-fiber diet is something that has been promoted in nutrition for a long period of time. But there remain a variety of interesting questions to researchers, practitioners and the general public alike. How much fiber do we actually need? What are current fiber recommendations based on? What outcomes have the strongest evidence for

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50:41

#479: Blood Glucose, CGM Use, Diabetes Remission &...

Sigma Nutrition Radio ·

2023/04/25

Links: Go to episode page Subscribe to PREMIUM Receive Danny's free weekly email Description: Blood glucose responses play a crucial role in maintaining good health, and any abnormalities in glucose regulation can lead to several chronic conditions. Diabetes is one such disease that results from a lack of insulin production or the body’s inability to use insulin effectively, leading to elevated blood glucose levels. There has been debate about what exactly constitues a “healthy” and “unhealthy”

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01:02:23

#478: Exposures in Nutrition – Why They’re Crucial to...

Sigma Nutrition Radio ·

2023/04/18

Links: Go to episode page (w/ resources) Get Danny's weekly emails Subscibe to Premium Description: Understanding the concept of an “exposure” is a critical aspect to nutrition science literacy. The ‘exposure of interest’ refers to the variable or factor that is being studied to determine its relationship with a particular health outcome. For example, in a study examining the relationship between diet and heart disease, the exposure of interest may be a particular nutrient or food group, such as

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22:11

SNP16: A Dairy Fat Paradox? – Saturated Fat, Food...

Sigma Nutrition Radio ·

2023/04/11

Links: Episode page with related links Subscribe to Sigma Nutrition Premium Receive Danny's free weekly email Description: Substantial evidence shows that a high intake of saturated fat in the diet has the potential to significantly raise LDL-C and ApoB-containing lipoproteins in many people, and in turn increase their risk of developing atherosclerotic cardiovascular disease (ASCVD). However, people may raise what seems to some contradictory evidence, or what is sometimes thought of as a paradox:

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54:24

#477: Effect of Different Diets on Cholesterol,...

Sigma Nutrition Radio ·

2023/04/04

Links: Go to episode page (with resources) Subscribe to Sigma Nutrition Premium Receive our free weekly emails Introduction: Discordance between low-density lipoprotein particle (LDL-p) and low-density lipoprotein cholesterol (LDL-C) occurs when the levels of these two biomarkers do not match up as expected. Discordance between Apolipoprotein B (ApoB) and low-density lipoprotein cholesterol (LDL-C) is similar, except rather than counting just LDL particles, ApoB is a measure of the numbers of

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52:21

#476: Fructose in Perspective – Dietary Villain or...

Sigma Nutrition Radio ·

2023/03/28

Links: Go to episode page (w/ resources) Subscribe to PREMIUM Receive Danny's free weekly email Description: Fructose is a type of sugar that is commonly found in fruits, vegetables, and many processed foods. In recent years, there has been a lot of discussion and debate about the impact of fructose on health, with some claiming that it is a major contributor to obesity, diabetes, and other chronic diseases. However, these claims are often at odds with what the scientific literature actually says

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55:54

#475: Is Food Addiction Real? – Charlotte Hardman, PhD

Sigma Nutrition Radio ·

2023/03/22

Links: Go to episode page Subscribe to Premium Sign-up for our free weekly email: The Sigma Synopsis Description: The idea of food addiction has gained a lot of attention in recent years, as obesity rates continue to rise around the world. Many people struggle with overeating and find it difficult to resist certain foods, leading to a cycle of guilt and shame. The concept of food addiction suggests that there may be a biological explanation for this behavior, and that certain foods may be

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27:05

SNP15: AMA – Semaglutide, “Carni-nutrients”, Sweating...

Sigma Nutrition Radio ·

2023/03/17

Questions Answered in this AMA [00:03:01] Mechanisms that keeps weight stable over time? [00:11:52] Semaglutide: Game-changer? Weight regain? [00:30:42] How to further lower LDL-C? Can I avoid statins? [00:43:52] Glyphosate: A cause for concern in food? [00:48:30] High caffeine intake is making me sweat more. What’s going on? [00:55:16] Should I avoid non-organic meat? [01:00:08] Is there evidence on iron and zinc co-ingestion for anemia of prematurity? [01:03:09] “Carni-nutrients”: Can vegan diets

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01:22:46

#474: Glucose Peaks & Variability – Is Lower Better?

Sigma Nutrition Radio ·

2023/03/13

Links: Go to episode page (with links & resources) Subscribe to Sigma Nutrition Premium Receive our free weekly email, The Sigma Synopsis About This Episode: Often claims are made recommending that people should aim to keep peaks in blood glucose low in terms of both magnitude and frequency. And while many claims about blood glucose “spikes” are incorrect or purposefully exaggerated to grab attention, there are some reasonable and interesting hypotheses put forward in relation to blood glucose

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