How To Lose Weight Fast (& Safely)

folder_openWeight Loss Tips
how to lose weight fast

The Lean Answer:

This article is part of our Weight Loss Tips series designed to help you understand how to lose fat safely and effectively. Before diving into specific strategies, it’s important to learn how weight loss actually works—the science behind calories, metabolism, and fat loss. Once you understand the fundamentals, check out our guides for practical next steps:

These four sections build on each other to give you a complete system for losing fat, getting lean, and maintaining your results for life.

If you want to know how to lose weight fast and safely, you’ve come to the right place.

This article features our top 10 proven tips based on science and experience to reach your weight loss goals quickly.

Because we want to help you as much as possible, Kristin and we’ve created a series of tips on weight loss!

We structured this series so that you can absorb it quickly, find your favorite tips, and use it as a reference.

Remember that implementing just one tip on this list may be a life-changer!

So, let’s begin.

How Weight Loss Works

How-Weight-Loss-Works

Before we jump into all of the tips, it’s critical for you to understand the fundamentals of how weight loss works.

You may have heard that you need to cut carbs or exercise every day to lose weight, but the truth is:

Losing weight comes down to calories; how much you eat and burn.

This is known as the calorie balance equation.

One pound of fat contains 3500 calories.1

So you must eat 3500 fewer calories than you burn to lose 1 pound of fat.2

Let’s take Mike who weighs 200 pounds and wants to lose weight fast.

If Mike burns 2500 calories and eats 2000 calories a day, he’ll create a 500 daily calorie deficit:

2,500 calorie burn – 2000 calories eaten = 500 calorie deficit

After 7 days, he’ll have a 3500 calorie deficit, which means he will burn 1 pound of fat. So in one week he has burned one pound of fat. Pretty good.

You may be thinking – “I just need to eat as few calories as possible and burn as many as possible, right?” Kind of.

If you eat too few calories, you may lose muscle and your metabolism can decrease.3 You will also have less energy to exercise. In other words, your body will fight you to conserve energy, burn fewer calories, and make you feel extremely hungry so you eat more.4

In addition, the quality of the calories you eat and your lifestyle choices affect this calorie balance equation by making you more or less hungry and increasing or decreasing the number of calories you burn.

If you want to lose weight fast, you must create a large enough calorie deficit that is sustainable, that allows you to lose only fat (not muscle), keeps your metabolism humming, and energy levels high.

So how much food and what type of foods should you eat? How much exercise and what type should you do?

The following tips will answer these questions and help you determine the best strategy to lose weight fast and safely.

Top 10 Tips To Lose Weight Fast

Get 7-9 hours of quality sleep per night

get 7-9 hours of sleep

Sleep may be the most important habit of all to help you lose weight fast. The more quality sleep you get 5, the easier it is to control hunger and the more energy you have to exercise. Lack of sleep can cause increased hunger,6 muscle loss, and weight gain.7 We have plenty of tips to help you improve the quality of your sleep in our lifestyle section below.

Log your food intake in a journal, or app for 3 days

log your food intake

When you track your eating habits with a food journal, or calorie tracking app even for a few days, it will be an eye-opening experience that can increase your body awareness and help you change your habits.8 You will learn how many calories you are eating each day, and also the calories in the foods you normally eat. Understanding your current habits will make changing them much more manageable, and can help you keep weight off long-term.9

Calculate your target daily calorie intake

calculate calorie intake

Once you have a sense of your eating habits, you can calculate your target calorie intake to ensure you create a calorie deficit. Remember, if you don’t eat fewer calories than you burn, you will not lose weight. Our recommendation is to multiply your bodyweight by 10. If you’re a man with over 25% body fat, or a woman with over 30%, subtract 200 calories from the target calorie number. For more information, you can check out How Many Calories Should I Eat To Lose Weight? and also How To Calculate Your Calorie Burn.

Replace processed foods with whole foods

eat whole foods

Obesity has many causes, but the root cause is arguably the rise of processed foods. Food that is processed, like cereal, cake, donuts, and french fries to name a few, provide significant calories without filling you up. Even worse, your hunger levels can increase shortly after eating these foods, causing a vicious cycle of weight gain. Eating foods in their natural state, or as close to their natural state as possible like apples, fish, lettuce, yams, eggs, etc. will help fill you up and stabilize your energy levels, so that you maintain that large calorie deficit.10

Eat protein with every meal

eat protein with each meal

While nutritionists may argue about whether low carb diets are best, one thing is for certain – a high protein diet helps you lose weight faster.11 Foods and meals that are high in protein help fill you up without providing too many calories. While 1 gram of fat has 9 calories, 1 gram of protein and carbs has only 4. That’s not to say dietary fat is bad, it’s just that protein, especially lean protein sources, will help satisfy your hunger more.12 Find out how much protein you need to build muscle.

Drink 8-12 cups of water per day

drink 8 to 12 cups of water a day

Drinking plenty of water is strongly associated with improved weight loss. Staying hydrated can help increase satiety, especially if you drink a cup of water before each meal.13

Follow a nutrition plan

follow a nutrition plan

You know your target calorie intake and you’ve learned about your current eating habits, now it’s time to create, or find a nutrition plan to follow. You can use the tips from this article to help you craft your own plan, or you can follow one from an experienced nutritionist like our BuiltLean Nutrition Plan. Either way, you know the goal – eat foods that fill you up without providing too many calories so that you hit your target calorie intake each day.14

Follow a workout plan

follow a workout plan

Over 200 years ago, Benjamin Franklin advised, “If you fail to plan you are planning to fail”. Clearly, if you have a great workout plan to follow, the likelihood of losing weight increases substantially.15 You can create your own workout plan using the tips in this article, or you can follow a plan from an experienced fitness coach or trainer, like our BuiltLean Workout Plan.

Do full-body workouts 3x per week

do full body workouts 3x a week

Training your entire body each workout will help increase your metabolism and calorie burn while preventing muscle loss. Focus on multi-joint exercises that challenge large muscle groups like squats, lunges, push-ups, and pull-ups to help maximize calorie burn.

Be patient

be patient

You may have come across this article because you are dying to lose your belly fat fast, but the truth is that losing weight – especially only fat – does not happen overnight. While you can lose 10 pounds in one day simply by dehydrating yourself, it will be almost entirely water weight. On the high-end, you can lose 1.5% of your body weight in fat per week. Much more than that, and it’s more likely you’ll be losing muscle and/or water. So a 200 pound man can lose 3 pounds of pure fat per week,16, 17 which is a hefty 1,500 daily calorie deficit.

Just because you want to lose weight faster, doesn’t mean you should, or you will. Be patient, follow your plan, and the excess weight will come off.

Author

  • Marc is the founder of BuiltLean. A former finance analyst who experienced the challenges of staying fit with a sedentary lifestyle, Marc created BuiltLean to help busy professionals get lean & fit for life. Marc earned his B.A. from Yale University and holds numerous health certifications.

    View all posts

References

  1. Wishnofsky, M. (1958). Caloric equivalents of gained or lost weight. The American Journal of Clinical Nutrition, 6, 542–546. http://ajcn.nutrition.org/content/6/5/542.full.pdf
  2. Schoeller, D. A., & Buchholz, A. C. (2005). Energetics of obesity and weight control: Does diet composition matter? Journal of the American Dietetic Association, 105(5 Suppl 1), S24–S28. http://www.ncbi.nlm.nih.gov/pubmed/15867892
  3. Doucet, E., St-Pierre, S., Alméras, N., Després, J.-P., Bouchard, C., & Tremblay, A. (2001). Evidence for the existence of adaptive thermogenesis during weight loss. British Journal of Nutrition, 85(6), 715–723. http://www.ncbi.nlm.nih.gov/pubmed/11430776
  4. Kalm, L. M., & Semba, R. D. (2005). They starved so that others be better fed: Remembering Ancel Keys and the Minnesota experiment. The Journal of Nutrition, 135(6), 1347–1352. http://jn.nutrition.org/content/135/6/1347.full
  5. Owens, J. (2014). Insufficient sleep in adolescents and young adults: An update on causes and consequences. Pediatrics, 134(3), e921–e932. http://www.ncbi.nlm.nih.gov/books/NBK19961/
  6. Spiegel, K., Leproult, R., L’Hermite-Balériaux, M., Copinschi, G., Penev, P. D., & Van Cauter, E. (2004). Leptin levels are dependent on sleep duration: Relationships with sympathovagal balance, carbohydrate regulation, cortisol, and thyrotropin. The Journal of Clinical Endocrinology & Metabolism, 89(11), 5762–5771. http://www.ncbi.nlm.nih.gov/pubmed/15531540
  7. Nedeltcheva, A. V., Kilkus, J. M., Imperial, J., Schoeller, D. A., & Penev, P. D. (2010). Insufficient sleep undermines dietary efforts to reduce adiposity. Annals of Internal Medicine, 153(7), 435–441. http://www.ncbi.nlm.nih.gov/pubmed/20921542
  8. Kong, A., Beresford, S. A., Alfano, C. M., et al. (2012). Self-monitoring and eating-related behaviors are associated with 12-month weight loss in postmenopausal overweight-to-obese women. Journal of the Academy of Nutrition and Dietetics, 112(9), 1428–1435. http://www.ncbi.nlm.nih.gov/pubmed/22795495
  9. Burke, L. E., Wang, J., & Sevick, M. A. (2011). Self-monitoring in weight loss: A systematic review of the literature. Journal of the American Dietetic Association, 111(1), 92–102. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3268700/
  10. Champagne, C. M., Broyles, S. T., Moran, L. D., et al. (2011). Dietary intakes associated with successful weight loss and maintenance during the Weight Loss Maintenance trial. Journal of the American Dietetic Association, 111(12), 1826–1835. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3225890/
  11. Due, A., Toubro, S., Skov, A. R., & Astrup, A. (2004). Effect of normal-fat diets, either medium or high in protein, on body weight in overweight subjects: A randomised 1-year trial. International Journal of Obesity and Related Metabolic Disorders, 28(10), 1283–1290. http://www.ncbi.nlm.nih.gov/pubmed/15303109
  12. Leidy, H. J., Clifton, P. M., Astrup, A., et al. (2015). The role of protein in weight loss and maintenance. The American Journal of Clinical Nutrition. http://www.ncbi.nlm.nih.gov/pubmed/25926512
  13. Dennis, E. A., Dengo, A. L., Comber, D. L., et al. (2010). Water consumption increases weight loss during a hypocaloric diet intervention in middle-aged and older adults. Obesity, 18(2), 300–307. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2859815/
  14. Soeliman, F. A., & Azadbakht, L. (2014). Weight loss maintenance: A review on dietary related strategies. Journal of Research in Medical Sciences, 19(3), 268–275. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4061651/
  15. Kreider, R. B., Serra, M., Beavers, K. M., et al. (2011). A structured diet and exercise program promotes favorable changes in weight loss, body composition, and weight maintenance. Journal of the American Dietetic Association, 111(6), 828–843. http://www.ncbi.nlm.nih.gov/pubmed/21616195
  16. Weinsier, R. L., Wilson, L. J., & Lee, J. (1995). Medically safe rate of weight loss for the treatment of obesity: A guideline based on risk of gallstone formation. The American Journal of Medicine, 98(2), 115–117. http://www.ncbi.nlm.nih.gov/pubmed/7847427
  17. The association between rate of initial weight loss and long-term success in obesity treatment: Does slow and steady win the race? (2010). Retrieved from http://www.ncbi.nlm.nih.gov/pubmed/20443094
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