Drinking coffee may help with weight loss. There is no evidence that adding lemon improves these effects. However, lemons have various other nutritional benefits.

People may have heard from others that adding lemon to coffee can help with weight loss, but there is no scientific research that supports this. It’s important that people seeking to lose weight follow nutritional advice from their healthcare professionals.

This article explores what the evidence says about coffee and lemon for managing weight and if adding them both in a drink helps. In addition, it notes any adverse effects.

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People may have read online articles or heard anecdotal evidence that adding lemon to coffee can help with weight loss. However, there is no scientific evidence to support the use of lemon coffee for weight loss.

Some studies do suggest that coffee can help with weight loss. However, no research exists to suggest that adding lemon to coffee enhances this effect.

Additionally, it’s important that people trying to lose weight speak with a healthcare professional to receive science-supported nutritional advice. Online articles that aren’t supported by scientific research may provide misleading or false dieting information.

Some evidence suggests that drinking coffee may help with weight loss.

For example, a 2023 study found that people with metabolic syndrome who changed from not regularly drinking coffee to drinking one to seven cups a week lost body fat around their middle. It’s important to note that this study was conducted in the midst of a Mediterranean diet and physical activity intervention. The authors explain that coffee’s bioactive compounds may inhibit the growth of fat cells and boost metabolism.

Some people also believe green coffee supplements may aid in weight loss. Green coffee beans are unroasted, unlike regular coffee beans. A 2019 systematic review concluded that green coffee supplements could lead to weight loss, reduced fat percentage, and decreased body mass index (BMI).

More research is needed to determine the correlation between green coffee and weight loss.

Learn more about whether consuming coffee helps burn excess fat.

Lemon may have become popular as a weight loss aid through lemon water diets. However, there is little evidence that lemon water diets work, and the main effects may be due to actually drinking more water rather than adding lemon.

For example, studies suggest that drinking water before a meal may lead to eating less and could be an effective weight loss strategy.

Some studies suggest that lemon detox diets help weight loss, but this is through calorie restriction. Additionally, a 2020 animal study indicates that lemon extract may increase insulin sensitivity and the breakdown of fats, but this may not translate to humans.

Citrus fruits such as lemons are good sources of antioxidants. According to a 2021 review, antioxidants in citrus have anti-inflammatory properties and counteract oxidative stress in the body.

Lemons contain 34.4 milligrams (mg) of vitamin C per fruit, which is 45% of the recommended daily allowance (RDA) of 75 mg for adult females and 38% of the RDA of 90 mg for males.

According to the National Institutes of Health (NIH), vitamin C may help protect against cardiovascular disease and age-related macular degeneration and shorten the length of the common cold.

Learn more about vitamin C.

Acidic drinks and foods may have negative effects on teeth. For example, an older study compared various beverages such as sodas, juice, tap water, and lemon juice. Lemon juice showed higher erosion on dentine and enamel than all other liquids.

In addition, caffeine in coffee may cause adverse effects in some people. Mild effects include:

Some people may also experience more severe effects of caffeine, such as disorientation or seizure. Furthermore, caffeine may cause withdrawal symptoms lasting up to a week if habitual users abruptly stop. Therefore, experts advise that someone should taper off caffeine gradually.

Learn more about the risks and cautions of caffeine.

Some people may be advised to lose weight for their health. A person can speak to their healthcare professional about the most effective way to lose weight and reduce the risk of chronic disease.

If a person has any adverse effects from drinking coffee with lemon, it’s important that they discuss this with their healthcare professional.

Learn about the difference between weight loss and fat loss.

Some research suggests that drinking coffee may help with weight loss, but no evidence supports adding lemon to improve this effect.

Lemon is a healthy fruit that contains antioxidants and vitamin C, so adding it to coffee may have nutritional benefits. However, citrus juice may erode the enamel on teeth, so it can be helpful that people keep a check on this with a dentist.

Anyone considering losing weight should speak with a healthcare professional. They can tailor nutritional advice depending on an individual’s health and any preexisting conditions.