Q: Can black coffee really help me lose weight? What are the health risks of drinking coffee regularly? A: Black coffee is coffee without any other ingredients such as sugar, milk or creamer, also known as clear coffee or fast coffee. The “black coffee diet” originated from the “Copenhagen diet” that has been circulating on the Internet for nearly four years, and most of the recipes will use black coffee for breakfast 1 cup, or with a cube of sugar and a slice of toast, which looks full of ritual. Can black coffee help you lose weight? It can be said that can lose weight, mainly in caffeine, for weight loss or a certain auxiliary effect, the possible mechanisms are: 1, caffeine can in a short period of time can suppress appetite, reduce hunger; 2, caffeine acts on the sympathetic nervous system, firing signals to fat cells, promote fat mobilization, decomposition into the blood, waiting for muscle and other tissues to fatty acid oxidation for energy; 3, caffeine through the stimulation of adrenaline secretion mechanism to increase the basal metabolic rate, the more muscle mass the more obvious the effect; 4, caffeine will improve a person’s exercise capacity, 40 minutes before exercise a cup, can improve the intensity and endurance of exercise, you can burn more calories; 5, caffeine has a strong diuretic effect, can promote the body’s excess water discharge, reduce edema; 6, caffeine can stimulate intestinal peristalsis, sometimes even lead to diarrhea, resulting in The body loses water, electrolytes and some energy through feces. In summary, if you don’t drink coffee before, suddenly add “black coffee” as an intervention substance in your lifestyle, you will have a significant weight loss effect in the short term, note that the premise is that the diet and exercise have also changed because of the addition of black coffee, so black coffee is also an auxiliary weight loss food. What are the health risks of regular coffee consumption? The effect of caffeine is related to weight and sensitivity. For healthy adults who have the habit of drinking coffee, it is recommended to drink caffeinated beverages in moderation, i.e. 100-200mg/day. Most healthy adults consume no more than 400mg of caffeine per day, which is considered a safe dose. For example, a large Starbucks cup (Grande, 480ml) contains about 330mg of caffeine and an 8oz (235ml) cup of freshly brewed coffee contains about 133mg of caffeine. Also, pregnant women should not consume more than 200mg of caffeine per day, which is equivalent to two cups of instant coffee. Lactating mothers should not exceed 1-2 cups of coffee per day. Caffeine belongs to the central nervous system stimulants, in addition to weight loss, most people also drink coffee to stay awake and refresh the brain. Side effects when consumed over a long period of time include: insomnia, rapid heartbeat, upset stomach, increased blood pressure, migraines, nervousness, anxiety, tinnitus, muscle twitching, frequent urination, dehydration (especially after exercise), and calcium loss. Sensitive people can experience these manifestations even with small amounts of one or two cups of coffee. Long-term coffee consumption may lead to tolerance or even dependence, and if caffeine intake is suddenly stopped, withdrawal symptoms such as severe headache, muscle pain, depression, irritability, and constipation may occur. Most people will fall into a vicious cycle of drinking more and more in order to ease withdrawal symptoms. Use caution with caffeinated beverages in the following conditions: insomnia; stomach discomfort such as gastric ulcer, gastroesophageal reflux, heartburn and flatulence (excessive secretion of stomach acid); diarrhea and irritable bowel syndrome (increased intestinal peristalsis that aggravates diarrhea); patients with glaucoma (increased eye pressure); patients with hypertension (increased blood pressure); and patients with heart disease. Q: I drink coffee especially satiety and suppress appetite, now a large cup of nonfat milk kabob every day, is it helpful for fat loss? A: This combination is helpful for fat loss. Firstly, it has enough volume to make you feel full, and in the end it is a low-calorie drink; secondly, caffeine has a metabolic and diuretic effect, but it also accelerates calcium loss in the body and stimulates the stomach; the good thing is that you choose to pair it with skim milk, the protein in it can protect the stomach mucosa and reduce the stimulation of caffeine, and the easily absorbed calcium in the milk can partly compensate for the decalcification effect of caffeine. The easily absorbed calcium in the milk can also partially compensate for the decalcifying effect of caffeine. Other things, such as refreshing or enjoying the aroma of coffee, are also a good experience. Overall, this is a good coffee drink to go with it.