Tag Archives: metabolism

Body composition, Health & Fitness, Nutrition

I can’t avoid late dinners. Will eating after 7 pm make me gain weight?

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It was one of those days early in my self-guided study of what makes us fat that I ran into a senior colleague after several weeks of being at different offices. I couldn’t help but notice that the large-built middle-aged lady had trimmed some inches off her generous posterior. Knowing she would be pleased with an acknowledging compliment, I proceeded to congratulate her on the loss. Preening, she let me in on the secret. “I’ve stopped eating anything after 5 pm,” she said.

Wait, you mean to say that eating an early dinner (5 pm was like mid-day for my 18-hour consulting work schedules those days) can put away so much fat? And I, on the other hand, had been snacking and even binging late into the evening in the name of much-required sustenance on intense projects! It was a Eureka moment for me.

“I’ve stopped eating anything after 5 pm.”

Have you ever fallen into the temptation of resolving to have an early dinner all in the name of weight loss/ fat loss? Or rued the fact that a late night supper might have ruined your entire day’s hard work in following healthy practices?

I’d like to address this concern, a rather thoughtful one I daresay, in three parts.

First, what leads to weight gain, or more technically, fat storage, is a calorie surplus that is not being set off by additional physical activity or a special condition (for example, pregnancy, lactation, recovery from a surgery, etc.). As long as you stay within your calorie requirement based on your total daily energy expenditure (TDEE), there should be no cause for fat storage no matter what time you have your dinner. Again, it is important, that the quality of calories is controlled. More specifically, that the macros are honoured. Mindless stuffing of junk food just because it is within your calories quota will lead to other health issues if not weight gain.

What leads to fat storage is a calorie surplus.

Second, although is no specific curfew time for dinner that applies equally to everybody, it is advisable to finish dinner at least an hour, ideally two, before bedtime. The reason is that the digestive process could get adversely affected with meals timed too close to bedtime. At the same time, sleep can be disrupted due to heartburn, bloating and indigestion, leaving you under-rested the next day.

Finally, there is in fact a scientifically proven method to trigger fat loss that involves eating only within a certain time period. It is popularly known as intermittent fasting (IF) but also goes by the name of alternative day eating/ fasting (ADE or ADF), one-meal-a-day (OMAD) and time restricted feeding (TRF) depending on the format of fasting one follows.

Intermittent fasting is a great tool for fat loss.

The basic idea behind IF is that you time your meals/ feeds such that there is a large enough gap before the next meal to allow your body to tap into its fat stores. The technique is actually a clever trick relying on millions of years of evolutionary processes that allow humans to store fat for lean times and use it when food is scarce. When the body is in a fasting state for at least 14-16 hours, the metabolic pathways shift from burning glucose for energy, the most commonly used mechanism on a standard/ high-carbohydrate diet, to burning fat for energy. This is, perhaps, what caused the inch-loss in my colleague.

Done carefully and systematically, IF is a great tool for fat loss. A big advantage is also that during the feeding intervals, one can eat almost anything – no licence for junk, still. Of course, it has several other advantages too in terms of convenience and saving of time (less planning, less cooking, less packing, less, cleaning up…). Do bear in mind, that this kind of fasting bears no resemblance to the kind of religious fasts that most people in India undertake, what with an elaborate menu of ‘fasting foods’ at the ready.

So, what time will you have dinner?

 

 

PC: lifealth.com

Body composition, Health & Fitness, Nutrition

Counting calories vs counting macros – which is better for fat loss?

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I recently came across an infographic in this blogpost, which outlines the principles behind weight loss, in a bid to oversimplify the process. Basically, it conveys that for weight loss to happen, you basically need to be in a calorie deficit. I agree completely. Cutting calories will lead you to that result – weight loss. But is that the correct goal?

I can think of weightlifters, powerlifters, bodybuilders and participants in physique competitions aiming for weight loss to make the appropriate weight class that they want to compete in. But for the majority of the population, the ultimate goal is to achieve an ideal body composition, which means, the optimal body fat levels and, perhaps, a reasonable amount of muscle. That, in turn, means fat loss, not simply weight loss.

Cutting calories will lead you to that result – weight loss. But is that the correct goal?

Eating less may help you lose weight, but it cannot guarantee fat loss. In fact, eating too few calories could have several adverse results:

  • With a consistent calorie deficit, the rate of weight loss tends to slow down, as the body adjusts to a new normal, thus, lowering BMR, which slows fat loss.
  • Cutting calories too low, below the minimum required for sustenance, can threaten the normal functioning of the body.
  • Severe calorie restriction signals the body that it is in semi-starvation mode, causing it to conserve energy, making any weight loss even more difficult.

 

Does that mean that one must not be counting calories for fat loss? Yes and no.

Yes, because your calorie needs depend on your BMR, total daily calorie/ energy expenditure (aka TDEE or TEE) depending on activity levels, and any special conditions such as competition prep (I’m not including ‘pregnancy’ and ‘lactation’ because that is not the right time to aim for fat loss anyway), etc. For a gain in weight, your calorie consumption has to be above the TDEE level. For a loss, it must be below the TDEE level. For maintenance, it should be at the TDEE level. But all this is only related to the number on the scale, your bodyweight.

Does that mean that one must not be counting calories for fat loss? Yes and no.

No, because the quality of the calorie intake is more important for fat loss to occur. The ratio of protein and fat to carbohydrates is what will determine the rate of fat loss.

For several decades, we have deluded ourselves that a diet high in carbs and low in fats is the best for avoiding obesity, thanks to the extremely biased propaganda that Western medical journalism and food processing industry, especially the American variety, dished out in the 1970s. We have now been forced to embrace what our forefathers knew centuries ago – that saturated foods are some of the best sources of energy (think ghee) and whole foods are far more nourishing than any processed or refined ones (for example, whole vegetables vs juices, meat cooked in its own fat vs lean meat, etc.).

A diet rich in good fats – saturated, mono-unsaturated, poly-unsaturated, in that order, moderate in proteins, and low in carbs, tends to serve best when seeking fat loss. Hence, it is critical to track the ratio of these macronutrients, or macros, rather than simply counting calories, when the goal is to lose fat.

Our ancestors knew that fasting was meant to be just that – fasting.

A common proxy that advocates of a carb-rich diet proffer is the Glycemic Index (GI) of foods when comparing which carbs should be allowed on a diet for fat-loss. The lower the GI of a food, they claim, the more suitable it is for weight-loss or fat loss. They also put forward the Glycemic Load (GL) concept as a basis for choosing the ‘right type of carbs’. However, if you take the example of ice cream as a food, which has a GI of 39, middle of the Low range, and a GL of 3, low of the Low range, these numbers would suggest a green light for ice cream on a weight-loss/ fat-loss diet.

The problem is that the only reason ice cream has a low GI and GL is because of the high fat content, which contributes zero GI and GL. Almost all ‘fasting’ foods in India fall in the category of low GI – low GL foods because of the fat-carbs combination. Yet, they are probably the worst category of foods for fat loss since the carbs trigger an insulin response, which, in turn, triggers storage of any carbs that are unutilized for energy in our fat cells as adipose tissue. The result – more body fat! Our ancestors knew that fasting was meant to be just that – fasting – and not a licence for ingesting foods with a poor macro balance.

When seeking fat loss, what will you choose? Low-calorie foods? Low GI/ GL foods? Low-carb foods? Fasts?!

 

PC: medium.com

Body composition, Health & Fitness, Nutrition

Will eating less help me lose weight?

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I caught on to the calorie counting game long before the advent and proliferation of fancy calorie tracking apps. As far back as 2008, I figured I could use my skills at Microsoft Excel to do more than creating financial models and business plans. I created my own calorie counter, following up with several updated versions (I think I even passed it on to some keen friends and relatives). The idea was to have a neat food log to track the calorie intake on a daily basis and ensure it remained at or near my Basal Metabolic Rate (BMR). I arrived at my ideal calorie requirement based on conventional wisdom of the time, and the vision I had of myself six months down the line.

That’s it, I thought. Calorie counting and control is all I need to do to crack the weight loss game.

As my food log got populated, I could see patterns emerging. I utilised the knowledge to tweak my dietary habits. Barring a few social incidents, I managed to remain fairly consistent in sticking to my ever more aggressive calorie goals. Needless to say, at the end of three months, the number on the scale had moved south significantly, despite little support in the form of exercise. I was feeling rather proud of the achievement not only because of the weight loss but also because of this fantastic tool I’d developed. That’s it, I thought. Calorie counting and control is all I need to do to crack the weight loss game.

 

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Not so fast! Despite the shouts of success from the weighing scale, I wasn’t receiving the expected looks, compliments or appreciation from people around me. Why couldn’t they see what I could?

Have you ever had this experience? Or know someone who did? Why was your/ their ‘loss’ not apparent or as significant as what the scale suggested?

The answer, as I discussed in my last post, lies in the type of weight that was lost – water, muscle or fat. Weight loss is easily apparent to the eye of a beholder when there is fat loss. Hence, what an overweight person with a disproportionate body composition must seek is fat loss, not simply weight loss.

Coming back to the original question, eating less does indeed help you lose weight. But, and this is a BIG ‘but’, it will not necessarily help you lose fat if you are eating the wrong type of calories since all calories are not equal.

Weight loss is easily apparent to the eye of a beholder when there is fat loss.

Another phenomenon that you might notice is that the rate of weight loss tends to slow down despite maintaining a calorie deficit, i.e. eating fewer calories than one spends in a day. This is because the BMR of a lighter person is lower, in absolute terms, than that of a heavier person (not to be confused with slow or fast metabolism).

Also, remaining on a calorie-lowering spree could prove dangerous if you reach calorie intake levels so low that they threaten the normal functioning of the body, usually around 1,000 calories, for the average adult.

A collateral fallout of such low calorie intake levels is that the body senses that it is in a semi-starvation mode and holds on to its stores of energy even more closely, potentially stagnating or even reversing weight loss.

So, take the ‘eat less’ formula of weight loss, or rather, fat loss, with a pinch of salt. There are other ways to create a calorie deficit than simply through eating less.

More myths to be flushed out. Soon.

 

PC: https://getrawenergy.co

Body composition, Health & Fitness

‘Fat people are lazy’, ‘Fat people eat too much’, and other such falsehoods

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As a kid, I was always in awe of those thin, lanky girls in my class who never got fat. I was even more surprised that they managed to tuck in way more than I did on most occasions. Yet, I was the one who remained ‘plump’ and ‘healthy’ (the latter is a special euphemism used by Indian parents for overweight kids of all ages). By teenage, I realised that I only had to breathe to put on the pounds while the skinny friends of mine could gorge on all manner of goodies without a gram showing up on the scale.

It was also the teen years that I realised I could turn to sports to help redeem my future of being a ‘fatso’. There were entire school terms I did so with a vengeance. And it did work… until I stopped. Every vacation, a period of seven weeks, I successfully managed to turn back time and undo the hard work of an entire 4-month term. Well-meaning aunts and uncles visiting during those holidays would affectionately remind me that I should be ‘more active’ and laze around less.

Every vacation, a period of seven weeks, I successfully managed to turn back time and undo the hard work of an entire 4-month term. 

As an adult, I continued to keep up an exercise regimen, even if it was patchy, so that laziness would not become a reason for being overweight. I had some good months and some not-so-good months. But I realised over time that, in my case, exercise was not a guarantee against weight gain, that simply eating less or moving more than my slim friends would not make me slimmer.

Do you have friends who seem the same size, even at 35, as they did when they were 22, while you sport sufficient curves and bulges to make you ‘look your age’? Or do you look at some of your schoolmates and marvel at how they filled out as adults while you could still turn out in a school uniform and look the part?

I realised over time that simply eating less or moving more than my slim friends would not make me slimmer. 

What causes some people to gain weight, and, indeed, fat, easily while some others seem to have natural insurance against such bodily changes without any apparent effort? In one word, the answer is ‘metabolism’. Metabolism is the sum of chemical processes involved in the breakdown and build-up of cells in our body. Put simply, it is the process by which energy is utilised and created in the body. Each person has a specific rate of metabolism for carrying out day-to-day activities, called the Basal Metabolic Rate (BMR), which determines how fast or slow one’s body handles the energy it receives, i.e. the food they eat.

Now, some people have a fast metabolism, which means their body burns energy from food at a faster rate than the average population (the thin girls from my childhood come to mind). They are the ectomorphs, usually skinny, with a small frame, thin and long limbs, and lean muscle. Their bodies are resistant to weight gain and, in fact, could lose weight quickly if they do not eat enough. This means they have a hard time putting on fat or muscle.

Some have a slow metabolism, as their body burns food energy at a slower rate than the average population (that’s me…sigh). They are the endomorphs, naturally plump, with a wide frame, round and tapered limbs, and a high fat-muscle ratio. Their bodies attract the pounds easily but lose them very slowly. They do, however, gain muscle quickly too.

Then there are the naturally lucky ones – the mesomorphs – the statistically average body type that people usually strive for. They have an athletic, medium build, and gain muscle easily as well as lose fat easily with moderation in exercise and nutrition. Their metabolism is neither too fast nor too slow for maintaining weight and body fat levels provided they follow a moderate diet.

Unfortunately, it is not possible to change one’s basic somatotype.

Three friends – an ecto, an endo and a meso – may each eat exactly the same food in the same quantity for several days and yet show completely different results on the weighing scale even if they started at the same weight. The reason is the rate of their metabolism. Unfortunately, it is not possible to change one’s basic somatotype.

Does that mean that you are stuck with whatever hand fate dealt you? To remain round and chubby if you are an endomorph, or skinny and fragile if you are an ectomorph (curse those mesomorphs!)?? Fortunately, no. Two factors, among others, play a major role in determining the BMR – age and exercise.

Younger people tend to have a relatively higher BMR than older people. That’s the reason daily servings of breads and pasta, typically high on calories, over an entire summer vacation, do little damage to pre-teens as far as weight gain is concerned. The same diet would start to reveal itself within a couple of weeks, if not days, for a middle-aged adult. BMR tends to drop as you grow older. So a 20-something endomorph could achieve the ‘fit’ look far quicker than a 40-year old mesomorph.

Exercise is the big game changer when it comes to increasing the BMR regardless of somatotype or age. Any form of exercise burns calories and adds to the rate of metabolism. (Of course, there are certain forms of exercise that help achieve a BMR higher than others.) Hence, a 35-year old endomorph who does weight-training regularly could look fitter and leaner than a 25-year old mesomorph who does not.

Does this mean that ectomorphs are doomed since they already have a high BMR and would only get thinner if it increased further? What an ectomorph needs is to add body mass, ideally muscle, to maintain a BMR that contributes to fitness. Thankfully, muscle-building is accessible to people of all ages, since it depends on exercise.

Exercise is the big game changer when it comes to increasing the BMR regardless of somatotype or age.

How do you determine what exercise is best for you? Several myths, misconceptions and even prejudices surround this question. I will discuss the most popular ones soon.

PC: https://www.tigerfitness.com