A popular way to help achieve a calorie deficit is to consume fewer calories than your usual caloric intake. Black coffee is an ideal beverage to drink for weight loss as it contains less than 5 calories per serving (one 8-0z cup).
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.
Caffeine and Weight Gain
When you start to look deeper, you will find other research that has shown that consuming caffeine throughout the day may actually result in weight gain, because caffeine affects cravings for food. Drinking caffeinated beverages, for example, may prompt you to eat more snacks and larger meals.
The short answer is yes, it can. Coffee is a natural laxative that stimulates the muscles in your digestive system, which can lead to an increase in bowel movements. This can cause the production of gas, leading to bloating and discomfort.
Try drinking your coffee black
"Once you start adding loads of sugar, creamer, and other ingredients to your coffee, you may have a recipe for gaining more belly fat. Stick to pure and plain coffee to support your belly fat loss goals," says Manaker.
She said that while both beverages have their nutritional benefits, green tea is generally considered better for weight loss because it acts as an appetite suppressant, boosts your metabolism, and burns fat faster than black coffee.
Most people would drink coffee first thing in the morning since it helps with weight control, but it's best to wait a little bit after waking up to get the full advantages. For instance, if you wake up every morning at 6:30, you should wait to make coffee until 9:30 and continue drinking it until the early afternoon.
Black coffee is best for weight loss as it does not contain added sugars or fats that can contribute to weight gain, Shaw says.
Coffee consumption broke down fats in the body and increased free fatty acids (FFA) in the blood, which the liver converts to ketones. The ketones produced after drinking coffee contribute to 5-6% of brain energy needs.
Caffeine can increase metabolism and help get to ketosis faster. Still, this can look different for certain people. But wait, the bad news is coming. If you're somebody who can't drink coffee without adding a bunch of creamers, sugar, or other flavorful additions, this won't work out for you.
Summary. Coffee itself does not lead to weight gain—it's what you put in it that does. As long as you're not drinking coffees loaded with added sweeteners and artificial flavors, most people can safely drink 4-5 cups a day.
Insufficient sleep is associated with higher levels of the hormone ghrelin, which increases appetite, and lower levels of the hormone leptin, which leads to feeling less full. This sets people up to gain weight. By contrast, sleeping more could alter these hormones and bring them back to balance.
To answer this question, it all boils down to the amount of fat, carb, and protein you can take. For the most part, you are recommended to have one to two keto coffee cups a day. Now, if you have a high caffeine tolerance, then you may go beyond two.
Yes, black coffee in its purest form is keto-friendly. Containing zero carbohydrates, this morning beverage is about as keto as it gets! But not all black coffees are created equal, especially when it comes to your weight loss, cognition, and health goals (which are likely why you started the keto diet!).
Both 12-hour fasting and 16-hour fasting can be effective for weight loss, but 16-hour fasting may be more effective because it may lead to a greater reduction in overall caloric intake (through a more condensed eating window) and promote more significant reliance on fat burning.
Strictly speaking, any amount of calories will break a fast. If a person follows a strict fasting schedule, they should avoid any food or drinks containing calories. Those following a modified fasting diet can often eat up to 25% of their daily calorie needs while fasting.
Summary. Consuming any calories breaks a fast. However, research has shown that some mechanisms behind fasting's benefits, like ketosis, remain active with the consumption of a few certain macronutrients.
(1) “The study showed that caffeine increased fat burning by as much as 7 percent in lean people, while the increase was only about 5 percent in obese individuals.” If your resting metabolic rate has you burning 2,000 calories a day, that's roughly a hundred calories.
What is clear is that 100 milligrams of caffeine — about what is in a rather weak 8-ounce coffee — causes healthy humans to burn an additional 75 to 150 calories via stimulation of the metabolism.