Caffeine is well known to increase athletic performance and muscular endurance. If you want to lose weight, people do various things such as take caffeine tablets and fat loss supplements and drink energy drinks (i.e., sugar-free red bull) as a potential solution to boost your metabolism and shrink fat cells. While diet will be the most important component of any weight loss program, caffeine can be beneficial for weight management for overweight individuals.


CAFFEINE PILLS FOR WEIGHT LOSS SUMMARY

  • Caffeine pills for weight loss has mixed research results, some finding beneficial affects and other finding no benefit. 
  • Caffeine may have a mild appetite suppression effect that can benefit fat loss, but the evidence is unclear.
  • The researchers found that both the lean and formerly obese subjects taking caffeine increased the metabolic rate by about 5.5% in both subjects and increased their calories burned (i.e., 100 calories for the lean and 90 calories for the formerly obese).(Dulloo et al., 1989)

 

Caffeine is well known to increase athletic performance and muscular endurance. If you want to lose fat, people do various things such as take caffeine tablets and fat loss supplements and drink energy drinks (i.e., sugar-free red bull) as a potential solution to boost your metabolism and shrink fat cells. While diet will be the most important component of any weight loss program, Caffeine pills for weight loss be beneficial for weight management for overweight individuals.

Mental Focus and Athletic Performance

Caffeine is a psychoactive drug and central nervous stimulant often combined with other ingredients (i.e., green tea, synephrine, yohimbine) to enhance metabolic rate. It is difficult to know what elicits the effects on metabolic rate. Is it caffeine intake or the combination of ingredients eliciting the effects on fat loss? I previously wrote on Evidence Based Muscle how decaffeinated green tea does not boost fat metabolism.

Caffeine’s ability to stimulate the central nervous system results in increased wakefulness, alertness, and enhanced energy primarily due to its action on blocking adenosine receptors and subsequent effects on increasing neurotransmitters that keep you alert, such as dopamine, epinephrine, and norepinephrine (i.e., adrenaline). (Fredholm, 1995) Increases in adenosine levels cause sleepiness.

Caffeine pills for weight loss

Caffeine can help you lose weight by increasing your metabolism and increasing the number of calories you burn at rest. (Astrup et al., 1990) One study found that caffeine consumption was associated with a lower body mass index (BMI) and waist circumference in adults. (Westerterp-Plantenga et al., 2005) Overall, caffeine may have the potential to aid weight-loss and fat metabolism.

caffeine pills for weight loss

One study found that caffeine consumption was associated with a lower body mass index (BMI) and waist circumference in adults. (Westerterp-Plantenga et al., 2005) Overall, caffeine may have the potential to aid weight-loss and fat metabolism.

Supplements and Appetite Suppressing Effects

Caffeine may have a mild appetite suppression effect that can benefit fat loss, but the evidence is unclear. Some studies have shown reductions in appetite, while others have found no effects. (Correa et al., 2018; Schubert et al., 2014) These inconsistencies might be due to differences in study design, dosages used, and individual factors, such as habitual consumption and body weight.

However, it is important to note that individual responses may vary, and the long-term effects on appetite require further investigation. A meta-analysis published in the International Journal of Food Science and Nutrition found that coffee and caffeine pills consumption resulted in a significant reduction in daily energy intake in the short term, leading to weight loss. However, most of the large scales studies show mixed results. (Schubert et al., 2017)

The authors reported that coffee consumption might have more consistent effects on health and appetite control than caffeine alone. This could be due to additional bioactive compounds in coffee, such as anti-oxidants and chlorogenic acids, which have been shown to influence appetite hormones, insulin, and glucose metabolism. This suggests that a couple of cups of coffee a day may enhance your weight loss goals.

Small Decreases In Calories Lead to Long Term Changes in Weight Loss

Studies showing that caffeine pills result in reductions in total food intake are small, usually ranging from 5-8% lower food intake. (Júdice, Magalhães, et al., 2013; Júdice, Matias, et al., 2013) This is a very small reduction in calories; however, small changes in daily food consumption can lead to long-term weight loss. For example, it has been suggested that consuming 100 calories daily can prevent long-term weight gain for most people. (Hill et al., 2003)

Here are a few studies of interest:

·According to a systematic review, a modest reduction in energy intake of 100-300 calories per day can lead to significant weight loss over time. The review found that a reduction in energy intake of 100 calories per day was associated with a weight loss of 0.5 kg over a year, while a reduction of 300 calories per day was associated with a weight loss of 1.5 kg over a year. (Kiddy et al., 1992)

·     Another study found that a 100-calorie reduction in daily energy intake was associated with a weight loss of 10 pounds over three years. Additionally, a study found that a 10% reduction in energy intake was associated with a 10% reduction in body weight over six months. (Saris, 2001)

caffeine pills for weight loss | 0.1%

The authors reported that coffee consumption might have more consistent effects on health and appetite control than caffeine alone.

Energy Expenditure and Metabolism

Studies have shown that caffeine can boost metabolism and stimulate fat burning in the body, making it a potential aid for fat loss when combined with a healthy diet and exercise routine. (Diepvens et al., 2007)

A really interesting study published in 1989 demonstrates that caffeine can boost metabolism. They took young, healthy males who were lean and had lost weight (i.e., formerly obese).

Micro Dosing Caffeine for Weight Loss

The researchers wanted to examine how micro-dosing caffeine affects metabolism throughout the day. The researchers fed and had the subjects stay in a special research room for 24 hours to measure metabolic rate on two occasions. One visit was a caffeine condition in which they received 100 mg every 2 hours from 9 am to 7 pm. The subjects received 100 mg dosages at 9am with breakfast, 11 am, 1 pm with lunch, 3 pm, 5pm, and 7 pm with dinner. The other visit was a no-caffeine condition.

The researchers found that both the lean and formerly obese subjects taking caffeine increased the metabolic rate by about 5.5% in both subjects and increased their calories burned (i.e., 100 calories for the lean and 90 calories for the formerly obese).(Dulloo et al., 1989)

The researchers found that both the lean and formerly obese subjects taking caffeine increased the metabolic rate by about 5.5% in both subjects and increased their calories burned (i.e., 100 calories for the lean and 90 calories for the formerly obese).(Dulloo et al., 1989)

Another study examined the effects of caffeine (i.e., 5 mg/kg/bw) given to obese women while dieting for 6 weeks, followed by a weight maintenance period of 4 weeks. Fat mass and lean body mass were measured at baseline, after weight loss, and after maintenance. Both diet groups resulted in significant weight loss, but the caffeine group lost more weight and prevented weight regain. The authors suggest that caffeine’s effect on weight maintenance might be due to its ability to increase burn extra calories, suppress appetite, and stimulate thermogenesis.

Caffeine Dosages for Weight Loss

3-6 mg of caffeine per kilogram of body weight (mg/kg BW) approximately 30-60 minutes before a workout is most effective for enhancing performance and promoting fat oxidation. (Goldstein et al., 2010) Caffeine’s peak levels of concentration appear in the blood 45 minutes after ingestion. 3-6 mg of caffeine per kilogram is roughly 250-400 mg for most people, depending on your weight. 

For those new to caffeine consumption or sensitive to its effects, starting with a lower dose (e.g., 100-200 mg) and gradually increasing it may be the best approach. This strategy can help minimize potential side effects, such as jitters, increased heart rate, and sleep disturbances while providing the desired benefits.

Potential Stimulant side effects.

Although caffeine pills can aid in fat loss, there are potential side effects that should be considered. It can cause jitteriness, anxiety, and insomnia, especially in high doses. Additionally, consider consuming caffeine earlier in the day to reduce the risk of sleep disturbances and avoid consuming it alongside other stimulants that may exacerbate its effects.

You should follow a qualified medical professional’s guidance if you are using caffeine with your diet. These effects are more likely to occur when consuming high caffeine doses or for those particularly sensitive to the substance. The Food and Drug Administration recommends a safe consumption level of less than 400 milligrams of caffeine per day. Based on this average, 400 mg of caffeine is equivalent to a little over 4 cups of coffee (about 4.2 cups).

To minimize these side effects, starting with a low dose of caffeine pills is recommended and gradually increasing as needed. Ultimately, while caffeine pills may offer some benefit positive changes in body composition, it is important to weigh those against the potential risks and decide whether they are right for you.

The Food and Drug Administration recommends a safe consumption level of less than 400 milligrams of caffeine per day. Based on this average, 400 mg of caffeine is equivalent to a little over 4 cups of coffee (about 4.2 cups).

There is no Replacement for Good Nutrition.

However, it is essential to consider when using caffeine pills for weight loss, it must be done with caution and use it as part of a comprehensive fitness and nutrition strategy that includes a balanced diet, regular exercise, and adequate sleep. Ensure your diet is rich in whole, nutrient-dense foods, including lean proteins, complex carbohydrates, healthy fats, and plenty of fruits and vegetables.

References

AAstrup, A., Toubro, S., Cannon, S., Hein, P., Breum, L., & Madsen, J. (1990). Caffeine: a double-blind, placebo-controlled study of its thermogenic, metabolic, and cardiovascular effects in healthy. volunteers. The American Journal of Clinical Nutrition, 51(5), 759-767. https://doi.org/https://doi.org/10.1093/ajcn/51.5.759

Correa, M., SanMiguel, N., López-Cruz, L., Carratalá-Ros, C., Olivares-García, R., & Salamone, J. D. (2018). Caffeine Modulates Food Intake Depending on the Context That Gives Access to Food: Comparison With Dopamine Depletion [Original Research]. Frontiers in Psychiatry, 9. https://doi.org/10.3389/fpsyt.2018.00411

Diepvens, K., Westerterp, K. R., & Westerterp-Plantenga, M. S. (2007). Obesity and thermogenesis related to the consumption of caffeine, ephedrine, capsaicin, and green tea. American Journal of Physiology-Regulatory, Integrative and Comparative Physiology, 292(1), R77-R85. https://doi.org/10.1152/ajpregu.00832.2005

Dulloo, A. G., Geissler, C. A., Horton, T., Collins, A., & Miller, D. S. (1989). Normal caffeine consumption: influence on thermogenesis and daily energy expenditure in lean and postobese human volunteers. Am J Clin Nutr, 49(1), 44-50. https://doi.org/10.1093/ajcn/49.1.44

Fredholm, B. B. (1995). Adenosine, Adenosine Receptors and the Actions of Caffeine *. Pharmacology & Toxicology, 76(2), 93-101. https://doi.org/https://doi.org/10.1111/j.1600-0773.1995.tb00111.x

References

Goldstein, E. R., Ziegenfuss, T., Kalman, D., Kreider, R., Campbell, B., Wilborn, C., Taylor, L., Willoughby, D., Stout, J., Graves, B. S., Wildman, R., Ivy, J. L., Spano, M., Smith, A. E., & Antonio, J. (2010). International society of sports nutrition position stand: caffeine and performance. Journal of the International Society of Sports Nutrition, 7(1), 5. https://doi.org/10.1186/1550-2783-7-5

Hill, J. O., Wyatt, H. R., Reed, G. W., & Peters, J. C. (2003). Obesity and the environment: where do we go from here? Science, 299(5608), 853-855. https://doi.org/10.1126/science.1079857

Júdice, P. B., Magalhães, J. P., Santos, D. A., Matias, C. N., Carita, A. I., Armada-Da-Silva, P. A., Sardinha, L. B., & Silva, A. M. (2013). A moderate dose of caffeine ingestion does not change energy expenditure but decreases sleep time in physically active males: a double-blind randomized controlled trial. Appl Physiol Nutr Metab, 38(1), 49-56. https://doi.org/10.1139/apnm-2012-0145

Júdice, P. B., Matias, C. N., Santos, D. A., Magalhães, J. P., Hamilton, M. T., Sardinha, L. B., & Silva, A. M. (2013). Caffeine intake, short bouts of physical activity, and energy expenditure: a double-blind randomized crossover trial. PLoS One, 8(7), e68936. https://doi.org/10.1371/journal.pone.0068936

Kiddy, D. S., Hamilton-Fairley, D., Bush, A., Short, F., Anyaoku, V., Reed, M. J., & Franks, S. (1992). Improvement in endocrine and ovarian function during dietary treatment of obese women with polycystic ovary syndrome. Clinical Endocrinology, 36(1), 105-111. https://doi.org/https://doi.org/10.1111/j.1365-2265.1992.tb02909.x

Saris, W. H. M. (2001). Very-Low-Calorie Diets and Sustained Weight Loss. Obesity Research, 9(S11), 295S-301S. https://doi.org/https://doi.org/10.1038/oby.2001.134

References

Schubert, M. M., Grant, G., Horner, K., King, N., Leveritt, M., Sabapathy, S., & Desbrow, B. (2014). Coffee for morning hunger pangs. An examination of coffee and caffeine on appetite, gastric emptying, and energy intake. Appetite, 83, 317-326. https://doi.org/https://doi.org/10.1016/j.appet.2014.09.006

Schubert, M. M., Irwin, C., Seay, R. F., Clarke, H. E., Allegro, D., & Desbrow, B. (2017). Caffeine, coffee, and appetite control: a review. International Journal of Food Sciences and Nutrition, 68(8), 901-912. https://doi.org/10.1080/09637486.2017.1320537

Westerterp-Plantenga, M. S., Lejeune, M. P. G. M., & Kovacs, E. M. R. (2005). Body Weight Loss and Weight Maintenance in Relation to Habitual Caffeine Intake and Green Tea Supplementation. Obesity Research, 13(7), 1195-1204. https://doi.org/https://doi.org/10.1038/oby.2005.142

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