Intermittent Fasting For Dummies. Janet Bond Brill
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The easiest way to estimate your calorie range is to use an online calculator. The Mayo Clinic has a simple calorie calculator at
www.mayoclinic.org/
and search for calorie calculator.
After you have your estimated typical daily calorie needs from your current body weight and activity level, then you can use the Mayo Clinic calculator to see how many more calories you can eat if you increase your activity level. You can also get the big picture of how intermittent fasting reduces your calorie intake and promotes weight loss.
See how this is done using Kiki’s goals and activity level. Take Kiki’s stats from the previous section, and plug in her age (45), height (5-4), weight (150 pounds), and gender (female). Her activity level is somewhat active (Kiki walks her dog for 30 minutes three times per week).
Her estimated calorie needs are as follows: She needs to eat somewhere around 1850 calories per day (approximately 13,000 calories per week) to maintain her current weight.
One of the sad facts of life is that when you do lose weight, you need to recalculate the number of calories you can eat to continue your weight-loss journey spiraling downward, because a smaller body has a lower BMR. In other words, the skinnier you get, the less calories you can eat to continue losing weight. The good news is you can offset this by bumping up your activity level.
Consider Kiki again: She wants to lose 10 pounds, and she has chosen to practice the 5:2 intermittent fasting plan (on two nonconsecutive days in a week she confines her eating to one 500 calorie meal; refer to Chapter 12 for more about this plan). Assuming she continues to eat 1,850 calories on five days in a week plus her 1,000 calories (on her two fasting days) gives her a grand total of about 10,250 calories ingested in one week. If she continues with her current activity level, she’ll have created a calorie deficit of 2,800 calories per week (presuming she continues her 300 calorie burn per week from her dog walks). Kiki will lose about a pound a week — the recommended safe rate of weight loss.
Choose an approach to eating (don’t call it a diet — it’s a lifestyle) that best fits your personality. Part 3 discusses the different fasting plans you may want to consider. Whichever one you choose, ensure that your meals leave you satisfied, not hungry and definitely not deprived.
Following the 80:20 rule
One of the main reason diets fail is because people deprive themselves of the foods they love. When life happens, they go off the diet and gorge on those foods they restricted during the diet. Face it, if you love carbs, there’s no way that you’ll ever be able to not eat pasta for the next 50 years! The long-term solution and the gold standard of dietary balance and moderation is what nutritionists call the 80:20 rule.
The 80:20 rule, more formally called the Pareto principle, states that, for many events, roughly 80 percent of the effects come from 20 percent of the causes. If you apply this philosophy to your eating regime, you can use it as an approach to healthy eating. The 80:20 rule shows you the way to balance, moderation, and indulging without any feelings of guilt. Don’t let perfection be the enemy of the good.
The basic idea of the 80/20 rule as it applies to your intermittent fast is very simple. In order to be healthy and balanced, you don’t always have to make 100 percent healthy food choices. Eighty percent will do the trick. You can choose less healthy food and indulge yourself without guilt with the remaining 20 percent. Think of your 20 percent time as the freedom to eat the foods you love that may not be the healthiest. The 80/20 rule is a fantastic way to enjoy your treats and stay on the intermittent fasting train.
Your indulgences need to be a reasonable portion rather than a free-for-all eat fest. Just because your 20 percent is for treats doesn’t mean you can go rogue with the entire pint of ice cream.
Revisit Kiki again: She loves her red wine (she drinks one 8-ounce glass a night) and munches on her nighttime snacks. Kiki has zero intention of giving them up. She is following the 5:2 intermittent fast. On her five non-fasting days, she eats three healthy plant-based meals totaling approximately 1,400 calories. That leaves her with 450 treat calories for nighttime. If she makes her dog walking a daily routine, she gets to add an additional 100 calories to her treats stash or 550 calories per night during her five non-fasting days. Five hundred and fifty calories translate into 8 ounces of red wine (approximately 200 calories) plus an additional 350-calorie high volume, slow-eating snack such as a huge bowl of popcorn. No deprivation here!
Red wine in moderation is a heart-healthy habit. However, doctors advise against beginning to drink if you don’t already do so. Exercise caution with any alcohol consumption because alcohol carries with it the risk of overindulgence, with many negative health effects. According to the American Heart Association, moderate consumption is one to two drinks per day for men and one drink per day (5 fluid ounces) for women. If you have any doubts about whether it’s safe for you to consume wine or any type of alcohol, ask your personal physician.
Trying just one more time
Several intermittent fasting approaches can succeed in helping you attain your goals. Intermittent fasting has many healthful effects on your body such as flipping your metabolic switch and changing your hormonal balance, which contribute to weight loss. But make no mistake about it, intermittent fasting doesn’t work through magic, and these plans don’t work through some secret bio-hack. Intermittent fasting lifestyles cause weight and body fat loss primarily by creating a sustained calorie deficit.
If you’ve tried intermittent fasting for a few weeks and haven’t lost any weight (or maybe you’ve even gained a little) despite doing everything by the book, you can easily get discouraged and give up. One of the major mistakes people make when first trying this lifestyle is giving up too soon. This lifestyle takes time to adjust to and for you to see results. If the plan isn’t working for you after say six weeks, switch to a different intermittent fasting schedule or better yet, come back to this chapter and do the calorie math. The calculations enable you to pinpoint where the problem areas are in your calorie intake (food consumption) and/or calorie output (exercise). Just remember to keep at it.
Chapter 4
Understanding the Link Between Weight and Health
IN THIS CHAPTER
Facing the facts about excess fat
Fighting back against heredity