New study evaluates nicotine's relationship to body weight and food intake

A study published today in Nicotine & Tobacco Research demonstrates in a carefully controlled series of studies that the self-administration of nicotine by rats suppresses body weight gain independent of food intake.

The authors of the study investigated the impact of reducing nicotine doses on , and results revealed that reduction of nicotine dose from a large self-administered dose to very low doses resulted in substantial weight gain. In rats self-administering a maximally-reinforcing dose of nicotine, body during the 20-day study period was attenuated by ~40% despite no change in food intake.

As lead author Laura Rupprecht said, "The findings are important in the context of potential product standards requiring very low nicotine levels in cigarettes, as they indicate that low nicotine levels may still reduce body weight, possibly motivating continued use and maintaining exposure to harmful chemicals in cigarette smoke."

The results of the four experiments in the study also indicate that the weight-suppression properties of nicotine may act through processes that are separate from those that contribute to nicotine addiction. A better understanding of the separate neurobiological mechanisms responsible for addiction and body weight regulation may allow for new avenues in the development of obesity pharmacotherapies.


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More information: "Self-administered nicotine suppresses body weight gain independent of food intake in male rats" DOI: 10.1093/ntr/ntw113
Journal information: Nicotine & Tobacco Research

Citation: New study evaluates nicotine's relationship to body weight and food intake (2016, May 18) retrieved 18 April 2021 from https://medicalxpress.com/news/2016-05-nicotine-relationship-body-weight-food.html
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