Category Archives: Protein

The current state of affairs in nutri-Twitter

Rant.

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1) It’s almost as if you’re either:

a red meat-eating 110% keto-advocate

or

you think red meat and a ketogenic diet is harmful.

 

If you don’t say the diet is magical, the zealots will try to trick you into, or outright accuse you of saying it’s harmful.

Further,

 

2. And the protein/kidney debate re-surfaced again recently. To be clear: no studies have shown direct harmful effects of protein on kidney function. The studies cited by KDOQI are observational and on end-stage renal disease. Not mild kidney disease or slightly impaired renal function. If I had ESRD, I’d rather play it safe and not enroll in one of Jose Antonio’s high protein diet studies (~4.4 g/kg lol).

I’m pro-LC and HP but not anti-LF. Humans have thrived on a wide variety of diets over time regardless of macronutrient composition. Food quality seems more important in this context.

3. If ketones are muscle-sparing, then…

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Entrain all of your circadian clocks. Full stop.

Skipping breakfast shifts skin circadian clock and enhances UVB-induced skin aging and cancer (Wang et al., 2017)… ok, that’s not the real title of the paper, but it’s what the research showed. And it’s kind of amazing.

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Regarding skin cancer and wrinkles, there are two basic processes to focus on: proliferation and protection.

 

 

These processes don’t really overlap: you want endogenous protective mechanisms during the day, to protect against UV rays, and you don’t want to be proliferating at this time because that would increase the chances of a malignant mutation being passed on.


Conversely, at night when the risk of UV-induced DNA damage is considerably less, it’s a green light for proliferation of skin cells. This is healthy, anti-aging-like turnover of skin cells.

We’ve discussed the importance of co-entrainment of your circadian clocks in the path: sunlight in the morning to start up the central pacemaker, breakfast in the morning to co-entrain many of the peripheral clocks with the master clock, exercise to get the skeletal muscle clock on board… but now we have another reason for breakfast: to co-entrain the circadian rhythms in your skin!

Consequences of skipping breakfast, going to the gym at night, staying up late, and having a big dinner: increased risk of obesity, diabetes, cardiovascular disease, cancer, etc., etc…

In this study: skin aging and cancer.

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Scientifically, high protein breakfast FTW

It wasn’t even *that* high in protein (30g) but relative to skipping breakfast, everything got better (Gwin and Leidy, 2018).

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At 7 days, this study was longer than some but shorter than others. Breakfast was provided by the researchers. Participants were on their own for lunch and dinner. Ad lib, although 7 days isn’t really long enough to influence body weight and this wasn’t even a goal of the researchers. Their goals were hunger, satiety, fullness, and sleep quality.

RANDOMIZED CROSSOVER. BOOM.

 

 

Small sample size (n = 13), although based on previous findings & expected effect sizes, they needed 12 participants for an 80% chance of detecting a statistically significant difference if one truly existed. Bigger sample sizes are usually better, but when those resources can be better spent elsewhere, researchers use these power calculations to determine the fewest participants required…

moving on

On day 7, they assessed some brain stuff before lunch and then sent them home with party boxes loaded with an assortment of pre-weighed foods & snacks. The participants were instructed to eat as much of whatever they wanted, ad lib, and return the boxes the following day.

The brain stuff:

Just like #eTRF

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20% off some delish stocks and broths from Kettle and Fire HERE

If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. I recommend Lion’s Mane for the brain and Reishi for everything else

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Study: protein & seafood. They work!

I liked this study for a couple reasons:

Effect of combined use of a low(ish)-carbohydrate, high-protein diet with omega-3 polyunsaturated fatty acid supplementation on glycemic control in newly diagnosed type 2 diabetes: a randomized, double-blind, parallel-controlled trial (Liu et al., 2018)

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There were FOUR groups: 1) high-carb, low protein (HCLP, aka CONtrol group); 2) LCHP; 3) HCLP+n3; and 4) LCHP+n3. So, instead of just taking a group of people, putting them on LCHP+n3 and comparing the results to baseline, they actually controlled for the variables independently.

 

 

All groups were assign 30% fat and the protein was either 17% or 28%. THIS WAS CONFIRMED with serum urea nitrogen and you know how much I like biomarkers! n3 status of the n3 groups were confirmed with plasma n3’s and you know how much I like biomarkers!

Some more details on the study design…

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20% off some delish stocks and broths from Kettle and Fire HERE

If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. I recommend Lion’s Mane for the brain and Reishi for everything else

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“The Big Breakfast Study” !

Chrono-nutrition influence on energy expenditure and body weight (Ruddick-Collins et al., 2018) HT/ Robb Wolf

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“A growing body of evidence highlights the importance of the biological clock as a modulator of energy balance and metabolism. Recent studies in humans have shown that ingested calories are apparently utilized more efficiently in the morning than in the evening and this is manifest through improved weight loss, even under iso-energetic calorie intake.” YES!!!

Book recommendation: Why We Sleep

 

 

People eating 3 square meals a day shouldn’t be ingesting >40% of their calories late at night. <33% prior to sunset is more like it.

“The SCN of the hypothalamus, the ‘master clock,’ is primarily regulated by the light/dark cycles in order to synchronise the body to the light cycle or solar day…” but it also must by sync’d to the peripheral clocks! aka ‘food-entrainable oscillators’ (FEO).

Sure, caffeine and exercise can influence the liver and skeletal muscle clocks, respectively, but for full central & peripheral co-entrainment: FOOD and LIGHT in the morning (exercise and caffeine are optional for this).

Intermittent fasting? Time-restricted feeding? For more on all that, head on over to Patreon! Five bucks a month gets you access to all articles and there are many other options. It’s ad-free and you can cancel if it sucks 🙂

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20% off some delish stocks and broths from Kettle and Fire HERE

If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. I recommend Lion’s Mane for the brain and Reishi for everything else

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New study: very low carb diets don’t impair high intensity interval training (Cipryan et al., 2018)

Effects of a 4-week very low-carbohydrate diet on high-intensity interval training responses (Cipryan et al., 2018)

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Relevant study design details: 18 young, healthy, moderately-trained males. First, this was a study on exercise performance. Had it been on glucose management in patients with type 2 diabetes or obesity, this is not the population they would have selected. Second, they needed at least a moderately-trained population otherwise both groups would’ve made big n00b gainz which may have out-weighed any differences incurred by ketoadaptation in 4 weeks.

 

 

Third, 4 weeks is a good duration for this kind of study because maximal ketoadaptation occurs in about 3 weeks and doesn’t get stronger thereafter (gains seen beyond 3 weeks are more associated with training effects).

On to the dietary protocols, results, and 2 other relevant new studies… but for that, head on over to Patreon! Five bucks a month gets you full access and there are many other options. It’s ad-free and you can cancel if it sucks 🙂

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If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. I recommend Lion’s Mane for the brain and Reishi for everything else

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Intermittent fasting is homeopathy-level #nothingsauce

From all of the published human studies and “n=1’s” I’ve seen on online forums, intermittent fasting is #nothingsauce. Don’t @ me.

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When people lose weight via IF, it’s because of caloric restriction. There’s no metabolic advantage, and if anything, maybe the opposite. Restricting your feeding window to a very short period = metabolic mayhem.

2000 kcals in one sitting?

*smh*

 

 

I believe “early Time-Restricted Feeding” #eTRF showed promise in that recent study because of the “early” part; no so much on the “TRF” part. I believe this, in part, because the large majority of our population suffers from some degree of circadian arrhythmia. Social jet lag, too much artificial light at night, skipping breakfast, etc., etc. An EARLIER feeding window is one way to re-align circadian rhythms.

 

 

It STARTS with Sleep. Wanna improve body comp and make mindlessly better food choices? Fix your circadian rhythms.

Now onto the one of the weirdest, but potentially most revealing human studies on time-restricted feeding…

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20% off some delish stocks and broths from Kettle and Fire HERE

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Obligatory glycolytic cells

Some cells lack mitochondria; they need glucose. And they don’t stop working during starvation because #gluconeogenesis.

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Red blood cells, renal medullar cells, and certain cells in the retina. Now do you see why it would be a problem if they stopped working during starvation? Hint: You’d die rather quickly.

Recommended textbook: Stipanuk or Gropper.

 

 

Those cells are unable to use conventional oxidative metabolism like the TCA cycle, ß oxidation of fatty acids, oxidation of ketone bodies and most amino acids, and the electron transport chain are all mitochondrial pathways absent from those cells.

To get the rest of this article (it doesn’t suck, I promise) or if you just like what I do and want to support it, head over to Patreon! Five bucks a month and there are many other options. It’s ad-free and you can cancel any time.

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20% off some delish stocks and broths from Kettle and Fire HERE.

If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. recommend Lion’s Mane for the brain and Reishi for everything else.

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Glucose dynamics during prolonged fasts

This is a somewhat complicated level of metabolism. Which tissues are producing what & how much, what are they burning & how much, etc., etc…

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After a few weeks, things begin to level out — we’ll pick it up there. Much of this is from a class I TA’d for in grad school, this book, and all the Cahill studies.

 

 

“The rate of glucose use at this time is around 90-100 g per day [remember, this is starvation, so all of that glucose comes from gluconeogenesis]. Of that, about 40 g is recycled via the Cori and glucose-alanine cycles and the remainder is ‘new’ glucose, ~18 g from glycerol and ~45 g from amino acids.”

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Starvation ketosis and “priority” of brain fuels

“Priority” is a funny concept the fields of nutrition, metabolism, etc. For the brain, it is said to be glucose. It’ll use ketones when glucose is low and ketones are really high, like during starvation, but otherwise it’s just glucose. Why is this? One of my mentors had some great insights…

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“It seems that the loss of some energy as ketones in the urine is the price we pay to provide the brain with a suitable fuel. But there are a number of unanswered questions about brain fuel use. Why does the brain not use free fatty acids? The usual answer given is that they are not transported across the blood-brain barrier fast enough to be used as a major fuel and this is probably true. However, why did the brain not develop a suitable transport system, or localized store of glycogen for that matter.”

WHY NOT FATTY ACIDS?

Textbook: Biochemical, Physiological, and Molecular Aspects of Human Nutrition

For the rest of this article and more, head over to Patreon! Five bucks a month for full access and there are many other options.

It’s ad-free and you can cancel if it sucks 🙂

Also, I’m open to suggestions, so please don’t hesitate to leave a comment or contact me directly at drlagakos@gmail.com.

Affiliate links: still looking for a pair of hot blue blockers? Carbonshade and TrueDark are offering 15% off with the coupon codeLAGAKOS and Spectra479 is offering 15% off HERE.
If you have no idea what I’m talking about, read this then this.

20% off some delish stocks and broths from Kettle and Fire HERE.

If you want the benefits of  ‘shrooms but don’t like eating them, Real Mushrooms makes great extracts. 10% off with coupon code LAGAKOS. recommend Lion’s Mane for the brain and Reishi for everything else.

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