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The Safe Way To Lose 20 Pounds In One Month

The Safe Way To Lose 20 Pounds In One Month

According to the DailyMail UK, the average woman spends 31 years on a diet. The average man? 28 years.

“Despite best intentions, three quarters of those who began their New Year with the firm resolution to lose weight will give up by the end of the week”.

And why are we dieting so often?

Well, the average person eats about 2000 pounds of food per year. Does that sound like a lot?

It sounds like a lot to me.

Plus, according to the Food and Agriculture Organization of the United Nations, while the average minimum daily requirement for energy is about 1800 calories, Americans on average take in around 3770 per day. I’m sure you won’t be surprised, that’s the most out of any country in the world. So at the end of the day, we aren’t really losing any weight, are we?

So then how do we do it, how do we lose weight and make sure that the pounds that we lose are significant pounds of body weight from fat, and not from muscle or something else?

And importantly, how do we do it safely and avoid potential health risks?

Download your 3 Day Meal Plan – It will help you get a lean body, just by eating the right foods.

Let’s get into some details.

1. Basal Metabolic Rate (BMR)

woman on weight scalesIf all you did was sit around, how much energy would your body need, how many calories would it burn?

That’s your Basal Metabolic Rate, or BMR. This is the basic number of calories you need to function in day to day life, I mentioned this calculation before in my discussion around counting calories.

BMR varies from person to person depending on a number of factors:

  • Weight and height: The bigger or taller you are, the more energy your body needs to sustain itself. I’m talking about lean mass here – the more muscle mass you have, the higher your basal metabolic rate will be.
  • Age: We all know our metabolism declines as we get older. Sometimes we can often feel it – I know I can. This is largely because muscle mass declines as we get older. We can, of course, compensate for this by working out.
  • Gender: Men tend to have a higher composition of lean mass compared to women. As such, women also tend to have lower BMRs.

While it is difficult to estimate your metabolic rate with an estimation, research has shown that the Mifflin St. Jeor Equation consistently gets it within 10% of the actual BMR.

Here it is:

BMR formula, where s is +5 for males and −161 for females.

Yeah, I don’t think I want to plug numbers into that equation either. We can start getting into P = heat production (measuring metabolism) and all that jazz…how about I just say that this is the calculation you want, and there are a bunch of free calculators online that you can use with great ease.

Let me link you to a couple:

Once you have your BMR, you know from a metabolic standpoint, generally how many calories you need to eat a day to stay the same weight, assuming all you do is lay around (which you don’t).

BMR doesn’t tell us what happens if we have an especially active day where we’re running around and doing work. Which leads us into our Total Daily Energy Expenditure.

2. Total Daily Energy Expenditure

woman looking at sports watchSo while BMR is your base caloric burn a day – the amount of energy you just need to function, your Total Daily Energy Expenditure (TDEE), is how many calories you expend in addition to that, taking into consideration things like housework, or going to the gym.

So while your BMR is essentially the amount of calories you should be eating at a bare minimum, your TDEE is the amount of calories with the addition of what you burn, so you’re taking your activity into account.

As an example, my close friend Jean is 39 years old, 5 foot 5 inches, 130 pounds. She’s moderately active in the gym, but works in finance and is usually seated while at work. According to the Global RPh Calculator above, her BMR would be about 1300 calories a day, but her TDEE would be about 2000 calories a day.

3. Fat Loss Case Study

fat lossLet’s say that Jean wants to shave 5 pounds in a month – is this possible?

She’s already a petite person. To do this, she would have to either increase her TDEE while maintaining her diet, or eat less than her TDEE.

The body is good at maintaining homeostasis, or internal conditions that are relatively constant. What this means is that if we are not paying attention to what we are eating, and just working out, we will naturally eat more to compensate for the additional calories we have burned. So it takes a conscious effort of working out harder and eating fewer calories to get to our weight loss goals.

If Jean’s TDEE is 2000 calories per day, we can safely assume that she is also eating about 2000 calories per day. As I mentioned in my discussion in counting calories, one school of thought is that one pound of fat is made up of 3500 calories.

So if Jean wants to lose 5 pounds in a month, she needs to burn an additional 17,500 calories, or about 600 calories a day. Now chopping 600 calories a day from your diet is pretty tough!

But what about chopping about 300 calories, and burning 300 more calories? That way the total calories expended would still be 600! Totally possible, 25 extra minutes at a moderate pace on the bike, and say no to that morning bagel sandwich while replacing it with steel cut oats, and magically, within a month 5 pounds will be gone.

It is important to note though, that genetic variability dictates a lot of whether we will be burning all fat pounds or not. Generally, people who are more overweight actually have an easier time burning pure fat weight than leaner people, because their bodies have more fat to give up as energy.

What’s important to note here is that BMR and TDEE provide a baseline to begin some experimentation to understand your body and its caloric needs. As I’ve mentioned before, simply counting calories and going on low calorie diets isn’t a prescription for healthy weight loss.

4. Heart Rate and Exertion

woman with heart monitorI frequently use a Polar Heart Rate Monitor. I first started using it when I noticed that my cardiovascular fitness was starting to lag. The reason I use it now, is to keep my intensity at lower levels instead of always going hard. As I got older, my body started to need more rest and recovery days, instead of giving it 500% every day. That said, heart rate monitors measure exactly that, heart rate.

Why is this important?

According to the American Heart Association, you want to be working out in a heart rate zone 50-85% of your hypothetical maximum heart rate.

Age breakdowns are as follows:

Age         Target HR Zone 50-85% Average Maximum Heart Rate, 100%

20 years                100-170 beats per minute           200 beats per minute

30 years                95-162 beats per minute              190 beats per minute

35 years                93-157 beats per minute              185 beats per minute

40 years                90-153 beats per minute              180 beats per minute

45 years                88-149 beats per minute              175 beats per minute

50 years                85-145 beats per minute              170 beats per minute

55 years                83-140 beats per minute              165 beats per minute

60 years                80-136 beats per minute              160 beats per minute

65 years                78-132 beats per minute              155 beats per minute

70 years                75-128 beats per minute              150 beats per minute

It’s important to note that genetic variability and medication can alter your max heart rate. For example blood pressure medication can lower your maximum heart rate.

The percent of maximum heart rate training method is not absolute, but a good proxy for exertion. If you spend an hour on the treadmill at 50% intensity, are you really working hard?

Monitoring and knowing your heart rate gives you a better idea of your actual exertion. Further, the accuracy of the estimated energy expenditure on polar monitors has been shown to be very high when compared to lab-based calorimetry, particularly with regards to moderate intensity lower body exercises.

Download your 3 Day Meal Plan – It will help you get a lean body, just by eating the right foods.

5. Cardiovascular Training

cardio trainingExercise burns calories. Whether it is cardio, strength training, or dancing the night away. All modalities of burning additional energy will contribute to your weight loss efforts.

But the benefits of cardiovascular training are embedded in its name. It’s good for your heart, lungs, and circulatory system. Not to mention the endorphins released will help you cope with stress, which is a weight increaser itself.

Here are some additional benefits of aerobic exercise:

  • Promotes brain growth
  • Prevents stress
  • Promotes focus
  • Interrupts anxiety
  • Regulates depression

A simple prescription for beginning cardio training is to start with light to moderate exercise. For sedentary people, this may be a brisk walk or light jog pace. Make sure to invest in some good shoes.

Start with 2 or 3 days a week for 25 to 30 minutes. For the first 5-10 minutes start at an easy warm up pace (50% of your max heart rate, or about a 4 or 5 out of 10 in terms of perceived exertion).

Then pump up the volume to what you feel would be moderate, or a 6 out of 10, check what your heart rate would be here, but it will likely be over 50% of your MHR. As you increase in your fitness, you can start increasing either the intensity, or duration, or both.

6. Strength Training

woman strength trainingLike I said before, all modalities of exercise will help you lose weight. But strength training will help to promote the growth and maintenance of lean muscle mass. A balanced training regimen including both strength training and cardio, will ensure you maximize the benefits of exercise while expending sufficient calories to both lose weight and keep it off.

Here are some additional benefits to strength training:

  • Increased bone health and lean muscle mass
  • Better coordination and body mechanics
  • Disease prevention
  • Mood enhancement

As we mentioned before, your BMR, basal metabolic rate, is how many calories your body expends at rest. And an increase in lean muscle mass will increase your BMR. Essentially you burn more calories, simply by the virtue of having more muscle. The number one way to achieve this is through strength training.

A beginner’s prescription for strength training includes hitting all the major muscle groups through compound exercises, or exercises that require movements at multiple joints. As you become more advanced in your training, you can move on to less stable equipment like free weights. But for the first two weeks, I’d suggest starting off with machines that have similar movements to the following:

  • Leg press
  • Chest press
  • Lat pull down
  • Shoulder press
  • Seated row

Start with a weight that you can handle at about a 6 out of 10 perceived exertion and attempt to do 12 to 15 repetitions. But do it twice, so you are doing two sets of 15 repetitions. As you become stronger, you can increase the weight, and decrease the repetitions, but do it 3 times. So work yourself towards 8 or 10 repetitions for 3 sets.

7. Putting It All Together

healthy woman in sunYou know your body best. Counting calories and restricting your diet may not be the best approach, and can also result in health issues. But knowing your general metabolism, and having a better sense of what level of intensity you should be working out at to get results, goes a long way in your life long experiment of getting to know yourself.

Download your 3 Day Meal Plan – It will help you get a lean body, just by eating the right foods.

I know I usually post on food or supplement focused topics, but I wanted to see whether information more focused on exercise prescription and information would be helpful for you all.

Let me know your thoughts, or if you would like more advanced training ideas!

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10 Comments

  1. Jürgen

    July 29, 2015 at 10:55 pm

    Hey Mike,

    great post 🙂

    But I think I’m missing something.
    The headline promises to tell how to lose 20 pounds in one month.

    I can’t find any other solution within that article than cutting back on my daily calories by around 2300.

    If I get your calculations right: 3500 * 20 / 30.
    I will try that even though it seems really tough.

    Do I miss something? 🙂
    Thanks

    Reply

    • Mike Kamo

      July 30, 2015 at 9:38 am

      Jurgen, let me re-look at the numbers. I think the best thing to extract from the post is to avoid hack diets and to moderate consumption to sustain a good body weight.

      Reply

  2. Zarayna

    July 30, 2015 at 3:13 am

    Hi Mike,

    Good info – thank you. I do know my body but unfortunately, my body knows me! I do get too tempted at sitting down and have a warm relationship with my sofa.

    As I am getting on a bit I know I should be doing strength training – my normal domestic and gardening chores are not quite the same. I wonder if you could recommend something on-line I could do at home regarding weight training? Very simple – whilst I watch Person of Interest?

    Thanks a lot,
    Warmest regards, Zara.

    Reply

    • Mike Kamo

      July 30, 2015 at 9:37 am

      Zarayna, a sedentary lifestyle is definitely bad for you. Sounds like you are doing all the right things. Try picking up a pilates or yoga program.

      Reply

  3. ban4992

    August 17, 2015 at 10:49 pm

    As I am getting on a bit I know I should be doing strength training – my normal domestic and gardening chores are not quite the same. I wonder if you could recommend something on-line I could do at home regarding weight training? Very simple – whilst I watch Person of Interest?

    Reply

    • Mike Kamo

      August 18, 2015 at 9:40 am

      Ban, try some core work outs. You can also do yoga to strengthen your core and build lean muscles.

      Reply

  4. Mark Forge

    April 13, 2016 at 8:55 am

    On strength training.

    I feel like machines are not really the ideal way for beginners. The best stuff you can do is bodyweight exercises like push-ups, squats and dumbbell rows.

    Great guide overall, but the question seems to be unanswered: how to lose 20 pounds in a month? Would be great if you put a few examples of how much of a caloric deficit one should create (both men and women) to illustrate what one needs to do.

    I am currently on my 7 day weight loss challenge and I am steadily losing 0.5 kg – 0.7 kg of body weight every day. If anyone’s interested to learn what I am doing feel free to check my website out.

    Take care!

    Reply

    • Mike Kamo

      May 22, 2016 at 3:55 am

      Thanks Mark for sharing your experience. Yes, if you’re starting out, bodyweight training is quite effective and needs no equipment.

      Reply

  5. jual bantal foto

    September 28, 2016 at 6:51 pm

    Thank You Very Much For Posting, This Is Very Helpful
    At All

    Reply

    • Mike Kamo

      September 29, 2016 at 2:26 am

      Glad you liked the blog.. Keep reading, there’s more to come.

      Reply

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About Mike Kamo



Hi, I’m Mike. One of my biggest passions in life is nutrition and after being certified, I wanted to create a site where I could help readers live a healthy and nutritious life. I believe we control our destiny and we can choose to live a long and healthy life by eating right and treating our bodies with respect.

Let me show you how our simple and efficient online fitness coaching has made it easy for thousands of women to lose weight, and how you can too!


Online Fitness Coaching

Get Your 3 Day Meal Plan (FREE)

Make your body lean just by eating right foods.