Clinical Studies
Fat burners containing caffeine and herbal extracts have been shown to increase energy expenditure and enhance fat loss. A study published in The American Journal of Clinical Nutrition demonstrated that caffeine increases metabolic rate and fat oxidation. Additionally, research in Phytotherapy Research highlights the benefits of Bitter Orange extract in promoting weight loss and enhancing fat breakdown. These studies support the use of JUSTFIT HARDCORE ULTRABURN as an effective supplement for weight loss and energy enhancement.
Sources:
Astrup, A., et al. "Caffeine: A double-blind, placebo-controlled study of its thermogenic, metabolic, and fat oxidation properties." The American Journal of Clinical Nutrition, 1990.
Stohs, S. J., et al. "Safety and efficacy of Citrus aurantium (Bitter Orange) extract in weight management." Phytotherapy Research, 2011.
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