Tag Archives: nutrition

Food and Thermogenesis: How what you eat affects your body temperature

Energy produces heat. If you didn’t sleep through science class, they probably taught you this.

There are all sorts of circumstances behind what we now call climate change, the steadily rising temperature of the planet. But one key element is the fundamental existence of more human beings than have ever been on the planet in recorded history.

All humans produce heat. Every mechanical, electrical, chemical anything we have ever done produces heat. Vehicles and other machines produce heat when they operate. Anything we built that moves produces heat. Even the coldest fridges, freezers and air conditioners produce heat to cool what’s inside: The heat is just emitted out of the back or top of the device into the surrounding atmosphere.

And our bodies produce heat. The bigger we are, the more active we are, the more heat we produce. This is a key reason why your perceived temperature is hotter when you’re running than it is when you’re walking or still. You produce a lot more heat when you exercise.

Even the energy required to digest food produces heat. The act of digestion producing this energy is a little something scientists call thermogenesis.

Some foods require more energy from thermogenesis than others. This is one of the keys behind why it’s generally healthier to eat unprocessed meat and vegetables than processed sugar.

Insoluble fiber and most proteins require a lot of digestive energy for the body to digest its nutrients. These foods are highly thermogenic.

Meanwhile, chemically refined sugar is by design quickly digested, as these foods are chemically engineered to not satisfy you hunger and make you crave more of them. These foods are lightly thermogenic.

You can eat 500 calories of sugar cookies, and still be very hungry immediately after eating them. Meanwhile, you can eat 500 calories of steak, and be so full you won’t want another bite of anything for several hours. And woe is the poor soul who tries to eat 500 calories of broccoli… if he even manages to get it all down (1 cup of cooked broccoli is about 60 calories). He will end up spending a regretful amount of time on a toilet at some future point.

Broccoli and other vegetables are among the most thermogenic of foods. Many require more caloric energy to burn them than the calories the vegetables themselves contain!

Now, why bring up global warming when bringing up the thermic effect of food? Is Steven saying that broccoli causes climate change?

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Ten Rules for Fat Burning

I have previously offered tips and principles for training and fat burning. But if you’re seriously trying to lose fat, these are firm rules you should follow. Following these will produce short and long term results on burning the fat you need to burn off.

Weigh yourself every morning

Arguments exist either way, but your weight is the ultimate scoreboard for how much fat you need to burn. If the number is going down, you’re trending in the right direction. If the number goes up, you’re trending in the wrong direction.

The one way to keep track of how your fat-burning is progressing is whether the number on the scale is going up or down.

If you ate something unhealthy for dinner, Intermittent Fast the next day

Sometimes you have to eat a processed, unhealthy meal. Life gets in the way. This is not a killer. Ideally, the meal had a lot of protein, but the key is to clear the inflammatory mess from your body as soon as you can.

The easiest way to do this is to make sure you skip breakfast and intermittent fast the next day. Your body’s 16ish hours without a meal going into tomorrow will churn and burn the mess you ate last night, and it will pass from your digestive tract and bloodstream more quickly.

Ideally, you break this fast with a clean meal. But the big thing is that, once your stomach has been emptied, your body taps into stored bodyfat, uses the unhealthy food for all it’s worth and sends it packing through your intenstines and kidneys.

If you wake up heavier than yesterday, Intermittent Fast the next day

Regardless of the quality of your last meal, the scale showing more weight than it showed yesterday is a sign that you’ve got some water weight and/or extra fat to burn.

So get to burning it, and make sure you go 16ish hours before your next meal. Load up on coffee and water, and give your body a chance to fat-burn and flush any extra water that’s accumulated.

Unless you eat a ton or eat really badly out of that intermittent fast, you should get the scale number moving once again in the right direction.

If you ate something unhealthy for dinner, drink 1 extra glass of water the next morning

Along with intermittent fasting, the best way to flush out inflammation-built water weight is to give your body more water. This will encourage a cellular reset, and more so will encourage your body to ditch the extra water and flush it towards your kidneys and bladder.

You don’t want to drink yourself into hyponatremia nor do you want to overkill and spend a ton of time running to the restroom. So the best middle ground is to take whatever water you usually drink in the morning and add an extra 16oz, 2 cups, one (typically sized) glass of water to that during the morning.

Sure, you will still take an extra trip or two to the toilet. But this will speed along the body’s return to homeostasis as well as the flushing of inflammatory nonsense from said body.

Do a minimum of one hour of demanding exercise activity every day.

Diet may be roughly 80% of your body composition, but 80% is only good enough for a B-. Honestly, while you could conceivably lose weight just by overhauling your diet, you may not feel too great and losing the remaining fat could be a longer, more difficult process as you approach a more normal weight.

It’s here where exercise really covers the gap. 60 minutes of solid activity, anything from walking to any other kind of demanding exercise, will burn at least 300 calories as well as any residual afterburn from having revved up your heart rate and associated hormonal effects.

You will simply burn more fat in the long run from having exercised than if you hadn’t.

Why an hour rather than half an hour? Anything less than 45-60 minutes is a negligible difference in your body’s net basal metabolic rate, and can be undone as easily as eating a slightly too large portion at one meal. The 300+ calories or 60 minutes of exercise carves out enough calorie/fat burn to make it so you’d need to make a clear eating decision to get back to maintenance calories.

Plus, the aerobic, circulatory and metabolic benefits of exercise are best manifested at and around the 60 minute mark. To exercise for less is to stop short of where these max bodily benefits would kick in.

Break every fast with a clean, non-processed meal. Prep the night before if you must.

Obviously, avoid eating garbage. And if you have just gone more than 4-6 hours from your last meal, the metabolic impact of that 1st meal post-break is more substantial. If it’s unhealthy, you set a negative metabolic tone for your body for the rest of day. You’ll probably feel crappy. And you won’t burn as much fat over the next 12-18 hours.

Eat healthy. Eat a lot of protein and other healthy, whole foods. But eat a nutrient-rich natural meal that your body will put to good use, and set a tone that will maximize the benefits of any food or exercise you do the rest of the day.

If this is hard to do from scratch, then you will want to spend the previous evening preparing or gathering food you can immediately grab and eat for your first meal the following day.

For example, back in Chicago, I would often set my rice cooker to have brown rice ready the following morning. I’ll also buy cans of tuna, fruit and other ready to grab food with the plan to eat it for lunch on subsequent days.

Worry less about net calories and worry more about calorie quality

I’m as big on counting calories as anyone. But I also recognize that 400 calories of lean whole food animal protein is a lot better and more nutrient-rich for me than 400 calories out of a box.

People who eat the same number of calories as before but much cleaner, whole food versions find that they still lose weight. This granted is in part due to shedding water weight from no longer being inflamed by processed food. But the whole food is put by your body to much better use and isn’t sitting in your bloodstream further rendering you insulin resistant. Your muscles are rebuilt, instead of your fat stores and retained water mass.

Even if you eat the same amount of food as before, just make that food non-processed instead of processed, and you will certainly notice a difference on the scale either way.

Protein first, fat/carbs second.

The easiest way to adhere to a cleaner, whole food diet is to front load all your protein, and make sure every meal is built around a protein source. Meat, dairy, eggs, fish, perhaps a amino-friendly combination of nuts, grains and legumes. Make sure you have a satisfying portion of one or more of the above, and then add fats and carbs as desired. This will ensure more satisfying meals without the need to gorge or overeat.

It’s very hard to overeat on a protein-rich diet. And your body needs the building blocks of protein anyway.

Give every carb a purpose.

I’m not a fan of low/no carb dieting, unless you live a purely sedentary existence and your only exercise is a brief visit to the weights at the gym 2-4 times a week. Sure, you can fat-adapt, but your brain and organs still use carbs, and often a low-carb diet just leaves the user feeling fatigued from the perpetual lack of glycogen.

Fat can be adapted a primary fuel source but it burns very slowly, much more so than glycogen. Your body will want to slow down in kind to keep up. Those who find success with such diets tend to have the necessary privilege and lifestyle to allow for that diet to provide suitable energy. Someone who is more active will need carbs.

That said, most people overdose on carbs, eating hundreds of grams a day despite being sedentary and not really exercising. Imagine trying to fill your gas tank everyday even though it’s full, and not caring that the excess petrol overflows all over your hands. Yet that is what most people do with carbs.

What you want to do is either:

  • Plan your carb intake around your exercise.
  • Plan your exercise around your carb intake.

Maybe you should workout right before dinner, if dinner with the family requires you eat a lot of carbs. Or maybe you can plan every meal… and it just makes sense to have those potatoes and fruit at breakfast right before that killer workout. Runners often don’t need to worry about carb timing, because they’re often running long distances and can easily use all the carbs they’re ingesting.

Try to look at your diet, and ask yourself, “When and where do I plan to use those carbohydrates?” No need to do complex Romijn glycogen calculations on your exercise. Just know that, if you want to have potatoes at dinner, you need to know at the very least when in the day or next day those carbs are going to get burned, or what exercise requires that you restore your glycogen stores.

Be conscious about what carbs you eat and why.

Dinner should always be satisfying, protein rich, and as unprocessed as possible

The crappier (i.e. less nutrient rich) your dinner, the worse you will sleep that night.

Sleep is where you recover not just from exercise but the rest of your life. Sleep is where your energy re-generates. What and how you eat impacts your sleep. If you go to bed having last ingested a dearth of nutrients, your body will either keep you awake wanting for more nutrients, or will wake you up during the night having exhausted the garbage you arte of all its lacking nutrient value, and starving for more nutrients that you likely aren’t going to eat at 3am.

A lack of sleep also inhibits fat loss. It promotes the product of fat-building cortisol and other damaging hormones and inflammation. You’re not helping yourself.

Eat well, eat right, for your last meal of the day, so you can sleep well.

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Energy Availability and making sure you don’t undereat when training

Currently I’m tinkering with my diet, not necessarily the foods but the meal timing and the calorie macros.

It’s not so much that my weight loss has currently stalled. In fact, it did drop to a month-low 168.9 lbs over the weekend… though it has been tough, slow going to move the average down.

I’m trying to naturally maximize my energy levels, which when I’ve fasted had tended to stay low. This means I need more nutrients around these times, which indicates I should stop fasting.

However, I went back through my RRCA training course materials… mostly because I was walking on a treadmill for an hour and the spiral-bound book was one of the only books I had that I could suitably read while on the treadmill. In any case, I went through the information-laden appendicies and it includes a robust booklet on nutrition by the IAAF.

In the IAAF’s Nutrition materials, they mention an interesting stat: Energy availability. The idea of Energy Availability is that aside from calories burned in exercise, the body has a certain number of calories it needs to rebuild and recover from that exercise.

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Twelve (12) Training and Lifestyle Tips For Fat Burning

There’s a lot I could say about fat burning, and there’s a legion of users-guide material throughout the internet world about methods to healthy fat burning (and many more about unhealthy fat burning ideas, which I will not bother to cover). I could write a piece about a dozen topics.

But I think it would help you to get some actionable tips in one place, and perhaps a shorter bit of writing on each of those in one place may help you more in the present. I can always cover all of these topics in additional pieces later.

So instead, I’m going to put a dozen topics into this long post, and succinctly get into why you should make it a standard or best practice.

If you’re trying to burn fat and struggling with it, these tips should help spur things along or keep things moving in the right direction.

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Supplements I take, and why I take them

I went out this morning and had breakfast at the Coffee Cup in Boulder City, the first restaurant breakfast I’ve had since the lockdowns began in March. I got coffee and ran a few errands on the way back.

One of those errands included picking up a new bottle of the cal/mag citrate supplement I had run out of last night. I also picked up some L-theanine capsules to start supplementing with daily. I’m not one to add a new supplement to my current rotation unless there’s a very good reason to do so, so this was kind of a big deal.

I don’t take a ton of supplements, but I definitely take more than just a multivitamin, and I have good reasons for taking everything I do take. I’m going to spill a few blocks of text to talk about those supplements I do take.

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Eat A Big Dinner Before Bed

This won’t be long or in depth. I just understand that many people struggle with sleep, despite knowing much of the general advice every other person and website gives. I want to offer a key actionable tip that works for me and MIGHT help you.

Eat a big meal a couple hours before bed. I don’t subscribe to the “breakfast like a king, dinner like a pauper” mindset, in some part because I usually intermittent fast, skip breakfast, and when I do eat lunch it’s lighter largely out of necessity: I’m usually working, and a big lunch will only tank my energy level, which I obviously don’t need.

So lunch should be light. Dinner has to be big.

The big reason you want to eat a big dinner before bed is that hunger can keep you awake. If you eat a light dinner, then you will probably be hungry when you go to bed. Hunger will rev up your hormones and keep you awake when you want to not be awake.

And no, a snack before bed is not the answer. You typically shouldn’t be snacking either way.

A subsequent and useful reason for a big dinner is that digestion can cause fatigue. Blood flows to your digestive tract, taking away resources and emphasis on the rest of your body. This causes the general fatigue you often feel after a big meal, and certainly on workdays after lunch.

Yes, your food choice also matters, and certain foods can make you more sluggish than others. I notice if I eat a light lunch with, say, tuna and produce, I feel mostly good afterward. If I eat a lunch with something processed/fried or a lot of carbs, my energy level tanks and I physically feel heavy. That’s not totally because I ate a large lunch, so much as because the quality of the food required my body to inflame plus required more energy to digest.

However, if you eat a bulkier meal before bed, then that sluggish effect is exactly what you want. You want to go to sleep. Feeling tired and sluggish is going to get you there.

If you’re worried about indigestion, then you probably need to clean up your diet some. I’ve had foods that cause acid reflux. I also never eat those foods for dinner. The whole food protein, vegetables, clean carbs that I do eat are much better for digestion. If you’re having heartburn or reflux problems when you eat a big dinner before bed, it’s probably the quality of your food rather than the fact that you ate before bed.

It honestly helps if you practice some sort of intermittent fasting or limited intake during the day. But I recognize if you have your reasons not to do so. Just recognize that you need to burn at least as many calories as you take in, lest you gain weight.

Yet you don’t want to get to dinner having to calorie-count that meal and heavily limit your intake. At least get to dinner with enough calories left to consume that you can comfortably have a big dinner.

This points to your smart move being to eat light or not at all during the work/school day. If you don’t skip breakfast, have a light, protein rich breakfast. Definitely have a light, protein rich lunch. Don’t eat anything out of a package unless that anything is as close to its original form as possible (like a bag of nuts, not like a bag of potato chips… like a can of tuna, not like a TV dinner).

Drink coffee or tea. Learn to love it without cream and sugar. Drink water. But now I’m digressing into a separate subject.

Anyway, never minding things like dimming lights and screens, sleep hygiene, etc… the most important element to sleep that’s never addressed is how satisfied your appetite is when you go to bed. Err on the side of making sure you don’t go to bed hungry, even if it means going somewhat hungry during the day to allow for a larger dinner.

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A Truth About Coaching and Personal Training

Where most people really need to work on themselves is in:

  • The Kitchen. The oft cited, never sourced adage is that 80% of your body comp depends on your diet, and abs are made in the kitchen. Debate the stats all you want but this is the truth. You can’t outwork a sub-optimal diet.
  • The Bedroom. (I don’t mean hanky panky either.) People need to get better sleep. Even well-trained athletes struggle to get consistent, high quality sleep. A lack of high quality sleep produces a snowball effect of stress, hormonal deprivation, and general fatigue that follows you wherever you go.
  • Their own minds. We all have our motivations, insecurities, anxieties, that drive us or hold us back. For many people, whatever they think they’re going to find in the gym or in therapy/medication is something they need to reconcile within themselves. It can be a general insecurity, something bad from the past, etc.

This is a fundamental issue I discovered with the use of personal training, even as I was studying to become a CPT. For the vast majority of people I could end up working with, I could only address the at-best ancillary concern of developing a workout program. I could not address let alone solve the underlying problems behind why they felt they needed it. And I cannot reconcile the salesman’s mindset to take their money because those underlying problems ultimately don’t matter as much as the need to train.

This is not totally the industry’s fault by any means. Trainers are just trying to earn a living. You paying for personal training pays their bills. Don’t take this as a fundamental indictment of personal trainers. Hell, all trainers are battling the exact same challenges I just listed. These needs and challenges are just as true for CPTs.

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