Why should diabetics avoid coffee?

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.

mayoclinic.org - Caffeine: Does it affect blood sugar? - Mayo Clinic

Should you drink cold or warm water in the morning?

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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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What do you eat on a 3-Day Juice Cleanse?

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Does fruit raise blood sugar?

How Does Fruit Affect Blood Sugar? Because they have carbohydrates, fruits will raise your blood sugar. So it's important to count the carbs you eat and balance them with medicine, diet, and lifestyle choices. If you're having trouble keeping your blood sugar under control, let your doctor know right away.

webmd.com - Fruits for Diabetes: Glycemic Index, List of Healthy Fruits - WebMD

You might have heard that you can’t eat fruit if you have diabetes. Fruit has carbohydrates and a form of natural sugar called fructose, which can raise your blood sugar levels. But it can still be part of your meal plan. It’s full of vitamins, minerals, and powerful plant compounds called phytochemicals. Thanks to phytochemicals, eating fruit may lower your risk of heart disease, cancer, and stroke and boost your overall health. That's important because diabetes is linked to a higher risk of heart disease and other problems. Many fruits are high in fiber, too. Fiber slows digestion, helping to prevent blood sugar spikes. It also makes you feel fuller, which can help you keep a healthy weight. How Does Fruit Affect Blood Sugar? Because they have carbohydrates, fruits will raise your blood sugar. So it’s important to count the carbs you eat and balance them with medicine, diet, and lifestyle choices. If you’re having trouble keeping your blood sugar under control, let your doctor know right away.

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