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# Better weight loss diet supplemented with caffeine
- URL: https://www.foodconsumer.org/weight_loss_with_help_from_caffeine_0720140630/
- Published: 2014-07-20T19:29:00.000Z
- Updated: 2026-09-22T16:10:19.000Z
- Description: Overweight and obese women who added caffeine at 5 mg per kilogram of body weight to a calorie-shifting diet lost 7.6 kg against 5.7 kg for the diet alone over four weeks, and the gap widened after a month of maintenance eating.
- Author: Food Consumer
- Tags: Supplements, Nutrition, #vivvo-import

Sunday July 20, 2014 (foodconsumer.org) -- A study suggests that caffeine supplementation can boost weight loss and fat loss in overweight and obese women who follow a low caloric diet.

The study finds that women on a calorie shifting diet who took caffeine as a dietary supplement lost significantly more weight and fat than those who only followed the calorie shifting diet (CSD).

Low caloric diet is key to weight loss, but most obese people have a hard time following a low caloric diet for a long term. The calorie shifting diet used in the current study not only made it easier for obese participants to follow, but also made it possible for them to lose weight and fat.

To follow the calorie shifting diet, obese and overweight subjects followed a calorie restricted diet (on average, with 1350 calories) for 11 days and then ate a diet ad libitum for 3 days. All participants repeated the cycle three times and then all followed a maintenance diet for 4 weeks. In addition to the calorie shifting diet, some participants also took caffeine in a dose of 5 mg per kg of body weight per day.

The calorie restricted diet was delivered in four meals with a 4-hour interval between two meals. That is, the dining schedule could be 8-12-4-8\. The dining schedule could vary, but keep all intervals equal to 4 hours or longer.

As a result, weight loss and fat loss in those who did not take caffeine after 4 weeks of the calorie shifting diet were 5.7kg and 4.8 kg, respectively, compared with 7.6 kg and 5.2 kg in those who also took caffeine, respectively.

After the one-month dietary maintenance, the difference between those who did not take caffeine and those who took caffeine became even more significant. Weight loss and fat loss were 5.2kg and 4.3 kg in those who did not take caffeine, compared with 12.1 and 9.9 kg in those who took caffeine, respectively.

The study also shows that the resting metabolic rate (RMR) remained unchanged in both groups. Following the calorie shifting diet, participants decreased feeling of hunger and increased their satiety after 4-weeks of the diet. And at the end of the study, the feeling of hunger remained the same while satiety was unchanged.

Caffeine supplementation increased the subjects' feeling of hunger and satiety or satisfaction after week seven.

The study concluded "These findings indicated that combination of caffeine treatment with CSD could be an effective alternative approach to weight and fat loss with small changes in RMR and improved tolerance of subjects to the new diet."

According to the study report, previous studies have demonstrated that caffeine supplementation can help weight loss through the increased thermogenesis and fat oxidation.

Caffeine is available as a dietary supplement on the Internet and local health stores. The Food and Drug Administration has recently warned against use of powdered pure caffeine in bulk bags because it is easy for a person to overuse caffeine and suffer serious adverse effects or even death. For that reason, food consumers should only use caffeine pills or supplements that can let them to use caffeine in a precise dose. (David Liu, PHD)

Reference: Sayyed Hossein Davoodi; marjan ajami ; Anoushiravan Mohseni-Bandpei; Seyyed Abdulmajid Ayatollahi; Kamran Dowlatshahi; gholamali javedan; Hamidreza Pazoki-Toroudi\*, Caffeine Treatment Prevented from Weight Regain after Calorie Shifting Diet Induced Weight Loss, Iranian Journal of Pharmaceutical Research, Article 38, Volume 13, Issue 2, Spring 2014, Page 707-718