When we eat food, the carbohydrates are digested into simple sugars and absorbed into your blood through your intestinal walls. In normal healthy people, blood sugar levels are kept within narrow limits by the antagonistic effects of insulin and glucagon. When glucose levels rise, insulin is released which will work to lower the blood glucose levels back down to the normal range. This leads to an increase in blood sugar levels seen as a sugar spike.
In diabetics, these spikes are more serious since the endocrine system (hormonal system) of the body dealing with glucose regulation is faulty and blood sugar levels remain high, leading to a state of hyperglycemia. When the blood contains elevated levels of sugars, it draws water out of the cells of the body by osmosis, causing an increase in blood volume, increased urine production and dehydration. Left untreated, high sugar levels can be extremely dangerous.
There are many reasons for blood sugar spikes, it is important to know what cause spikes and how to prevent them. Usually everyone’s blood sugar levels spike after a meal. The point is that this spike is higher in diabetics than non-diabetics. Many diabetic patients have experienced sugar spikes after a coffee Usually this is an unexpected condition. But in general, coffee reacts in different ways to different people.
To reduce blood sugar spikes, diabetic patients need to choose their meal carefully. Certain vegetables and ingredients (and many more in your meal) may cause sugar spikes after meal and diabetic patients are advised to reduce the consumption of such.
Source : articlesbase
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