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Does coffee raise blood sugar?

For most young, healthy adults, caffeine doesn't appear to noticeably affect blood sugar (glucose) levels, and having up to 400 milligrams a day appears to be safe.

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Does caffeine affect blood sugar? Answer From M. Regina Castro, M.D.

The average U.S. adult drinks about two 8-ounce (240-milliliter) cups of coffee a day, which can contain around 280 milligrams of caffeine. For most young, healthy adults, caffeine doesn't appear to noticeably affect blood sugar (glucose) levels, and having up to 400 milligrams a day appears to be safe. Some studies suggest that drinking coffee — whether caffeinated and decaffeinated — may actually reduce your risk of developing type 2 diabetes. If you already have diabetes, however, the impact of caffeine on insulin action may be associated with higher or lower blood sugar levels. For some people with diabetes, about 200 milligrams of caffeine — or the equivalent of one to two 8-ounce (240-milliliter) cups of plain, brewed coffee — may cause this effect. Caffeine affects every person differently. If you have diabetes or you're struggling to control your blood sugar levels, limiting the amount of caffeine in your diet may provide a benefit.

With M. Regina Castro, M.D.

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Can lemon lower blood pressure immediately?

Lemon drink contains traces of several minerals that may be beneficial in lowering blood pressure. Calcium and potassium both can lower blood pressure in those suffering from hypertension. A study suggests that lemon water can help bring the number to the normal range immediately.

Lemon, one of the two main ingredients of this beverage is a rich source of vitamin C. The juice of one lemon provides around 21 per cent of a person's daily value (DV). Additionally, the citric fruit is rich in flavonoids, a compound with powerful disease-fighting properties. The drink is low in fat, carbs, sugar, but contains traces of several vitamins and minerals, including potassium, folate, and vitamin B. The nutritional value of each glass of lemon water varies depending on how much lemon juice is squeezed in it and other ingredients added to it. As per dietary guidelines, females older than 19 years must take 75 mg of vitamin C and for males older than 19 years it is 90 mg per day. Those who smoke need more vitamin C per day than those who do not. When it comes to specifically boiled lemon water, there are still not many scientific studies carried out that can help us understand if boiling changes the nutritional content. Some studies suggest that boiling may actually reduce the number of nutrients in the drink. Even then drinking boiled lemon is said to be extremely beneficial for health. Some health benefits of drinking it are:

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