In episode 25 of The Muscle Engineer Podcast I’m joined by Adam Tzur of the Sci-Fit website for the first part of many episodes where we will take a deep look at various aspects of a ketogenic diet.

Topics discussed with time stamps:

3:10 Adam’s background, what made him start this series and how the data collection went

11:12 What is ketosis, how it differs how ketoacidosis and how is it typically measured

19:20 What should the macronutrients ratio be in a properly set up ketogenic diet and how does activity levels influence them?

23:21 Does a high protein diet “kick people out” of ketosis?

29:50 Missing the forest for the trees when following a ketogenic diet (eating “empty calorie” high fat foods, chasing ketone levels etc)

35:07 The most common conflicts of interest when it comes to studies examining ketogenic diets and supplements

50:00 How to determine if a study is actually trustworthy or if it’s been influenced by bias?

Resources mentioned:

You can find Adam at:

If you want to apply for online coaching, email me:

Say “Hi” on social media:

Get all the previous podcast episodes:

In episode 22 of The Muscle Engineer Podcast I finally bring on board one of the pioneers of the evidence based fitness community, the man who needs no introduction, Lyle McDonald.

Topics discussed with time stamps:

3:39 A discussion about The DIETFITS trial by Gardner et al. 2018 and low carbs vs low fat diets in general

33:51 Menstrual cycle 101 and the impact of different phases on bodyweight and hunger levels

41:55 Setting up a female’s fat loss diet - determining energy needs

45:02 Determining macronutrient intakes – protein overfeeding and body recomposition

54:26 Determining fat and carbohydrate requirements and manipulating them based on training or rest days

1:07:04 Individualization and fitting the diet to the person and not the other way around

1:17:50 Manipulating macronutrients to match different phases of the menstrual cycle

1:26:53 The main take-away of the episode

Further reading:

You can find Lyle at:

If you want to apply for online coaching, email me:

Say “Hi” on social media:

Get all the previous podcast episodes:

Episode 21 of The Muscle Engineer Podcast is part two of my conversation with Marty Kendall and Vincent Sparagna, where we dissect the topic of satiety.

Topics discussed with time stamps:

1:15 What is satiety and why is it important?

6:50 Lessons learned from almost half a million days of MyFitnessPal data

10:33 Vincent’s pedantic critique of Marty’s definition of satiety (lol)

16:44 The limitations of using self-inputted MyFitnessPal data

25:16 Protein’s effects on satiety

46:01 How long does it take to develop a nutrient deficiency and should we eat seasonally?

51:33 My top 3 take-aways from the episode

Further reading:

If you want to apply for online coaching, email me:

Say “Hi” on social media:

You can find Marty at:

You can find Vincent at:

Get all the previous podcast episodes:

Episode 20 of The Muscle Engineer Podcast is an in-depth dive into the topic of nutrient density with Marty Kendall and Vincent Sparagna.

Topics addressed with time stamps:

3:05 Marty’s intro and the Janury challenge he has put out

17:00 What is nutrient density and why is it important?

21:18 Potential issues with the nutrient density ranking

25:03 Why do some foods many consider nutrient dense (such as nuts, avocado, dairy) rank lower in Marty’s nutrient density scale?

29:21 The importance of keeping calories in mind even when focusing on nutrients

36:43 The highest ROI food sources when it comes to nutrient density

41:45 How does bioavailability influence the nutrient density of common foods?

45:48 The benefits and cons of a carnivore diet

57:15 The nutrients that are hardest to get in and might be worth supplementing with

1:02:16 Nutrient requirements for someone that is physically active vs sedentary

1:04:55 My top 3 take-aways from the episode

If you want to apply for online coaching, email me:

Say “Hi” on social media:

You can find Marty at:

You can find Vincent at:

Get all the previous podcast episodes:

In episode 17 of The Muscle Engineer Podcast I’m ridin’ solo, and look back on the last 2 episodes, giving what I considered to be the top 3 take-aways from each. Enjoy!

Topics discussed with time stamps:

1:06 A mini-rant on so called “evidence based” people dismissing anything that’s not published in a scientific journal

Episode #15 key lessons

3:28 #1 Don’t be afraid to try something out, even if it doesn’t have scientific backing and if it works for you, stick with it

6:25 #2 Something can be helpful short term, even if it’s unsustainable long term

9:29 #3 The value of synchronizing your food intake with your ancestry, the season we’re in and daylight hours

Episode #16 key lessons

14:10 #1 Insulin sensitivity is only good up to a point and increasing systemic IS with GDA’s might not be the best idea

16:55 #2 Choosing nutrient dense fat sources and having higher fat rest days

21:18 #3 The importance of sleep for improving insulin sensitivity and your overall health

Get in contact with me:

Get all the previous podcast episodes:

When Adel, at that time still a physics student in his early twenties, became really interested in resistance training, nutrition and supplementation, there were few unbiased evidence-based sources with information on how to train, eat and supplement on the Internet. So what do you do if no one offers the non-sponsored, impartial, science-based content you'd like to read? Well, Adel decided to create this educative and science-based content himself... And that’s how his blog, SuppVersity (Supplement + University) was born.

The idea to review and communicate the latest results from nutrition, supplementation and exercise science is still at the heart of everything Adel does with his blog, the corresponding Facebook Page, during podcast interviews and in his function as a reviewer for's Research Digest.

Topics discussed with time stamps:

3:12 Adel’s background and current interests / projects

5:16 Insulin sensitivity - what is it and how can be measured?

8:28 Is daily blood glucose monitoring a valuable tool for dedicated lifters?

15:03 What are the symptoms of hypo- or hyperglycemia?

17:11 Is the inability to go for a semi-extended period of time without food a sign of poor metabolic flexibility?

22:01 The impact of visceral body fat on insulin sensitivity and health

27:45 How can we tell the difference between visceral and “regular”, subcutaneous body fat?

34:00 What are the lifestyle factors that can impact insulin sensitivity - chronic stress, lack of sleep, poor gut health (IBS, SIBO) etc

39:20 High carb, low fat massing – does Adel think it’s a good idea and what should the minimum recommended intake of fat per day be?

48:48 Should fasting periods be incorporated in order to maintain metabolic flexibility on a super high carb diet?

53:46 Glucose disposal agents (berberine; R-ALA, Acetyl-L-Carnitine) – what is their role and are they worth taking for a healthy, active individual?

59:15 Metformin as not only a GDA, but anti-aging “miracle drug” and potential safety concerns

1:02:02 Taurine supplementation and it’s benefits for performance, blood sugar regulation, hearth, gut and brain health

1:13:55 Adel’s definition of success

Further reading

Adel’s article on insulin clearance

Jorn Trommelen ‘s Ultimate Guide to Muscle Protein Synthesis

Examine’s Research Digest

You can find Adel at:

Get in contact with me:

Get all the previous podcast episodes:

In episode 15 of The Muscle Engineer Podcast I’m joined by legendary Norwegian coach and educator Børge Fagerli to discuss his recent Carnivore diet experiment and a variety of related nutritional concepts.

Topics discussed with time stamps:

3:10 What made Børge decide to try this diet and was there a particular scientific reasoning behind this approach when the vast majority of nutrition points in a pretty much opposite direction - plant based diet with plenty of fruits and vegetables are what people in the blue zones seem to mostly eat

14:40 What meats did Børge eat? Did he consume any organ meats or eggs? Did he take any supplements with this diet to counterbalance the lack of certain micronutrients and minerals, and was he worried about potential overdosing of iron by consuming large amounts of red meat?

20:46 How long was the adaptation period to this diet, and how were satiety, performance and energy levels throughout the day and what effects did this diet have on his body composition?

24:18 What does he think the inflammation he suffered from before trying this diet was due to (genetics, eating foods that weren’t agreeing with his body)?

28:45 Is he worried that this diet basically starves the gut bacteria, which might be helpful in cases of dysbiosis, but also starves the good bacteria, probably making an individual less tolerant to plant based foods over time? And what does he think about the recommended 10-15 g of fiber / 1000 kcal?

36:10 What were the results of Børge’s blood tests and a discussion around cholesterol levels and their significance for health

42:25 The goals and durations a carnivore diet would be most suitable for

48:24 How would a zero carb, carnivore diet compare to a “regular” high protein diet that also includes some other protein sources and maybe some fruit here and there?

51:16 After finishing the experiment, how should we start reintroducing other foods, particularly carbohydrates?

54:37 Børge’s updated views on timing your carb and overall food intake during the day for health and body composition

58:22 How should we think of seasonal (circannual) rhythms that dictate what we should eat throughout the year and how should we adapt our diet according to that (food selection, overall energy intake and goals). Should we bulk during the summer and cut during the winter?

1:09:22 Does Børge prefer organic produce and what does he think about the sustainability aspect of a long term carnivore diet?

1:14:29 Where can you find Børge online

1:15:15 What is Børge’s definition of success?

You can find Børge at:

Get in contact with me:

Get all the previous podcast episodes:

In episode 12 of The Muscle Engineer Podcast I’m joined by Ábel Csabai of The Sustainable Self Development Center to discuss ad libitum dieting, or as it’s more commonly known – intuitive eating.

Ábel is the host of The Sustainable Self Development podcast, where he interviews people in fitness and personal development related topics, and puts out a lot of content on topics such as the psychology of dieting, creating a sustainable approach to training and nutrition, and general self improvement.

During our conversation we discuss his experience with macro tracking, why he transitioned into a more intuitive approach, what are the skills you need to have in order to be able to successfully implement this dieting method, who is it for and who is it not for, and much more.

Check out the 2 excellent videos Ábel made on the topic:

You can find Ábel at:

Get in contact with me:

Topics discussed with time stamps:

2:48 Abel’s experience with tracking his food intake and his transitioning into intuitive eating

16:40 What is intuitive eating and how is it different from “listening to your body”?

21:57 Requisite skills necessary to be able to implement intuitive eating

25:33 The issues with unrealistic expectations and people’s actions not maching their ambitions

32:21 Who is intuitive eating for and who is it not for?

38:12 Adressing the fear many people seem to have, that if they start eating intuitively they’ll become obese

53:54 Practical tips on implementing intuitive eating successfully both for gaining and losing weight

1:04:03 Ábel’s definition of success

1:06:02 My top 3 take-aways from the episode

In episode 11 of The Muscle Engineer Podcast I’m joined by Melody Schoenfeld for a science-based, objective analysis of the vegan diet and lifestyle.

Melody Schoenfeld is a Certified Strength and Conditioning Specialist with the NSCA, Certified Nutrition Specialist, Certified Massage Therapist and a personal trainer with over 20 years of experience in the field.

Melody holds a master's degree in health psychology and writes and speaks both nationally and internationally on a wide variety of health and fitness subjects. She has held state and American records in all three lifts in powerlifting (squat, bench press, deadlift), and competes in powerlifting and strongman.   

In addition to these feats, she is a heavy metal musician and a vegan for over 20 years, and the recent author of the book “Pleasure Not Meating You: A Science-Based Approach to the Vegan Lifestyle (And Some Recipes, Too) “.

During our conversation we both express our dislike for the most common “emotional blackmailing” approach vegans take when trying to convince meat eaters to abandon animal foods and offer a better approach, discuss some of the most common misconceptions about vegan diets and adress the most common nutrients vegans can be deficient in, plus much, much more.

Make sure to stick around until the end if you want to hear what were my top 3 take-aways from this episode.

Buy Melody’s book

You can find Melody at:

Get in contact with me:


Topics discussed with time stamps:

1:57 When and how did Melody get involved with fitness

5:48 When did she decide to adopt a meat free diet and does she eat any animal products at all?

9:23 What does she think about trying to convince people of abandoning animal products by the common “emotional blackmailing” approach. And what would be a better approach?

13:52 The difference between vegans, vegetarian etc

16:12 The distinction between “plant based diets” vs “vegan diets”

17:33 What are the ethical, economic, and environmental considerations associated with the vegan diet?

22:42 Does Melody thinks that false claims (such as the ones being made in What the Health, The China Study etc) and false infographics are actively harming the community?

26:17 What are the most common misconceptions about vegan diets and what are some of the primary nutritional concerns to adress in order to be able to follow a vegan diet without nutrient deficiencies?

39:08 What are Melody’s thoughts on meat substitutes (textured vegetable protein, seitan, mycoprotein, soy etc. ) ? Is soy bad due to it’s phytoestrogen content?

42:30 Does she buy food that is grown locally and does she favor organic or conventional farming when purchasing produce and why?

44:25 Melody’s thoughts on lab-grown meat and other non-conventional protein sources, such as insects

47:22 Melody’s final message with regards to this topic

48:18 “Pleasure Not Meating You”, and why Melody decided to write her book

50:36 Melody’s definition of success

52:43 My closing thoughts and key take-aways


In episode 10 of The Muscle Engineer Podcast I’m joined by Trevor Johnson, a personal trainer and fitness consultant and overall super smart evidence-based guy to talk about how he overcame alcohol addiction, the diet strategies he used to lose 50 lbs and mistakes people make with high intensity training.

We also touch on other controversial topics, such as sugar addiction and whether it exists or not, how much control do we really have on how much we eat, and much much more.

Topics discussed with time stamps:

2:56 Background on Trevor’s fitness journey and his alcohol abuse issues and how that impaired his phyiscal progress

8:29 How should we think about balancing fitness with alchohol consumption and where is the line between recreational consumption and addiction?

11:00 Why the “just have one every day” advice doesn’t work for some people when it comes to alcohol and food intake

15:05 What Trevor thinks about “sugar addiction” and it being compared to something like alcohol addiction

19:55 The impact of food advertising messages such as Halo Top’s “Save the bowl. You’re going to want the whole pint. “ or “Stop when you hit the bottom. “ on mindful eating and healthy eating behaviours

23:56 Sugar vs food addiction, the impact of different food combinations and advertisements on how much we eat

30:06 Mental conditioning and the importance of reinforcing new behaviours when you want to make a change in your life

37:14 What made Trevor start the fat loss phase he did last year, during which he lost 50 lbs

39:44 What made Trevor decide to follow a super high protein intake and what were the lessons he took from it

49:35 Low volume / HIT training – why does Trevor like it and who has influenced him into adopting this style of training?

50:51 The value of logbooks and tracking your workouts

55:20 Do people run themselves into the ground by constantly trying to beat their past performance?

59:02 Issues around the definition of “low volume training” and the dose response relationship between volume and muscle growth

1:08:52 Trevor’s definition of success

1:10:21 My closing thoughts and main take-aways from the episode

You can find Trevor at:

 Get in contact with me:


In this episode I'm joined by Eric Trexler to discuss the origins of the Fat Free Mass Index (FFMI) and some of the issues with the Kouri et al paper, the common belief that a 25 FFMI is the highest you can achieve naturally, the results of Eric’s FFMI paper and how you can use your own FFMI to determine how should you approach your muscle gain periods, plus much, much more.

Eric is a PhD student at UNC Chapel Hill, under Dr. Abbie Smith-Ryan, with a research focus on how exercise and nutrition affect metabolism, performance, and body composition. Eric comes from a background in natural bodybuilding, powerlifting, and strength coaching, and currently holds certifications in sports nutrition (CISSN) and strength and conditioning (CSCS).

Greg Nuckols’s FFMI article

Greg Nuckols’s article on assessing your muscular potential

Eric’s FFMI paper

You can find Eric at:

Get in contact with me:

Today's guest is Brad Dieter, a trained Exercise Physiologist, Molecular Biologist, and Biostatistician. He has a Masters of Science in Biomechanics and a PhD in Exercise Physiology. He completed his post-doctoral fellowship in translational science at Providence Medical Research Center, Providence Sacred Heart Medical Center and Children’s Hospital where he studied how metabolism and inflammation regulate molecular mechanisms disease and is involved in discovering novel therapeutics for diabetic complications.

In addition to his lab and biostatistics work, Dr. Dieter is the Chief Scientific Officer at Eat to Perform and is passionate about scientific outreach and educating the public through his role on Scientific Advisory Boards and regular articles on health, nutrition, and supplementation on his website,

During our conversation we dive into fructose biochemistry and metabolism, it’s potential roles in performance nutrition and it’s highly controversial relationship to the onset of non-alcoholic fatty liver disease (NAFLD).

If you’re interested in knowing whether fructose will give you fatty liver, what role fructose plays in glycogen repletion or if you should eliminate fruits for your diet, then you have to listen to this episode.

The Trommelen et al paper we mentioned

You can find Brad at:

Get in contact with me:

In this episode I'm joined by Nicolas Verhoeven to discuss inflammation.

Nicolas is currently finishing up his Masters in Exercise Physiology, with his thesis focusing on muscle atrophy, as it relates to sarcopenia and cachexia.

He runs a YouTube channel called Physionic and a blog with the same name, on which he shares evidence based information about a variety of topics related to physiology, nutrition and general health.

During our conversation we tackle the controversial topic of inflammation, and it’s implications for muscle growth and health. If you’re interested in knowing what is inflammation, what are the potential causes of it and what you can do to reduce it, then this episode is for you.

You can find Nic at:


Get in contact with me:

In this episode I'm joined by Alex Leaf for a very in-depth, yet practical discussion on glycine.

Alex has a Master’s degree in Nutrition and currently works for Exam​, the number 1 resource for independent and unbiased supplement reviews and nutrition information. ​

In this episode we go deep into the biochemistry of glycine metabolism and utilization and it’s potential roles for improving longevity, blood sugar managment and cognitive function, among others, but we also give practical suggestions that you can implement right away.

You can find Alex at:


Get in contact with me:

Today I’m joined by Joshua Verduzco, a certified personal trainer who has an MSc degree in Human Sciences with a major in Human Nutrition and is a registered dietitian who works at Christus Spohn Hospital in Corpus Christi, Texas, as a clinical dietitician.

We discuss his educational background, how he ended up becoming an RD, the steps towards becoming an RD, the rotations that were part of his internship and much more. If you’re interested in what it takes to be a registered dietitian or maybe you want to become one yourself, then this episode is for you. 

Check out Joshua at:

Get in contact with me:


Episode 2 of The Muscle Engineer Podcast, in which I’m joined by Triage Method’s co-founder Gary McGowan aka SkinnyGaz to talk about his personal fat loss phase, customizing the approach for the individual, mindset “hacks”, refeeds, taking responsability for your goals and much, much more.

We also get into some of my personal experiences and challenges with fat loss that I’m sure many can relate to.

You can find Gary at:

Get in contact with me:

Load more