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How Long To Wait After Eating To Check Blood Sugar

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What Are The Complications Of Low Blood Glucose

Blood under the microscope after eating sugar. My test

Mild-to-moderate low blood glucose can be easily treated. But severely low blood glucose can cause serious complications, including passing out, coma, or death.

Repeated episodes of low blood glucose can lead to

  • high blood glucose levels, if worry or fear of low blood glucose keeps you from taking the medicines you need to manage your diabetes8
  • hypoglycemia unawareness, a condition in which you dont notice any symptoms of low blood glucose until your blood glucose level has dropped very low

/8the Right Time To Check Your Blood Sugar Levels

The perfect time to check the fasting glucose levels is right after your wakeup. And the right time to check postprandial glucose levels is two hours after you have your meals.

A gap of two hours after a meal must be maintained to get the correct reading.

This helps you choose the right foods and medication. When you test before your meal, it tells you how much medication you need and when you test two hours after eating, you know if your medicines are working fine for you.

How Soon After I Wake Up Should I Check My Blood Sugar

Work with your doctor to come up with a schedule for testing your blood sugar. Factors for you and your doctor to consider in developing your schedule include the medicines you take, when you eat and how well-controlled your blood sugar is. Many people with diabetes find that it works well for them to check blood sugar first thing in the morning, but talk with your doctor to find out whats best for you.

Check your blood glucose immediately on awakeningbefore any morning activities, such as showering, shaving or putting on makeup. The reason for this schedule is that if your blood glucose is low, you can drink some juice or milk. If it is high, you can take your insulin immediately and allow it to work at least one hour before breakfast. It is important to get into this habit, because if you start the day with a normal blood glucose level before breakfast, keeping your blood glucose under control throughout the day is much easier. Monitoring your sugar immediately on awakening does not take a major change in lifestyle, but it is very effective in improving your blood glucose control.

Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.

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How To Do A Finger

Your healthcare team will show you how to do it the first time, but these are the key steps:

  • Wash your hands with soap and warm water. Dont use wet wipes as the glycerine in them can affect the test result. Make sure your hands are warm so its easier to get blood and wont hurt as much.
  • Take a test strip and slot it into the meter to turn it on. Some meters will have tests strips built in.
  • Remove the cap from your finger prick device and put in a new lancet. Then put the cap back on and set the device by pulling or clicking the plunger.
  • Choose which finger to prick but avoid your thumb or index finger . And dont prick the middle, or too close to a nail. Place the device against the side of your finger and press the plunger. Use a different finger each time and a different area.
  • Take your meter with the test strip and hold it against the drop of blood. Itll tell you if the test strip is filled, usually by beeping.
  • Before you look at your reading, check your finger. Use a tissue to stop bleeding, then use it to take out the lancet and throw it away in your sharps bin.
  • You can use the same tissue to take out the test strip and throw that away too. Taking out the strip will usually turn the meter off.

What Do My Results Mean

Postprandial Blood Glucose

When you finish the blood sugar check, write down your results and note what factors may have affected them, such as food, activity, and stress. Take a close look at your blood glucose record to see if your level is too high or too low several days in a row at about the same time. If the same thing keeps happening, it might be time to change your diabetes care plan. Work with your doctor or diabetes educator to learn what your results mean for you. It can take time to make adjustments and get things just right. And do ask your doctor if you should report results out of a certain range right away by phone.

Keep in mind that blood glucose results often trigger strong feelings. Blood sugar numbers can leave you upset, confused, frustrated, angry, or down. It’s easy to use the numbers to judge yourself. Remind yourself that tracking your blood sugar level is simply a way to know how well your diabetes care plan is working, and whether that plan may need to change.

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Blood Sugar Level After 30 Minutes:

About half an hour after a meal, the digestive tract works in full swing to digest and absorb the nutrients taken during the meal. So, the proteins, carbs and fats are broken down by different digestive enzymes and are gradually absorbed in the body.

The blood is the carrier of these nutrients and it transports them throughout the body to supply energy to the different organs. The blood glucose level at this time is generally at its peak.

The Best Time To Check Blood Glucose After A Meal

Most of the food you consume will be digested and raises blood glucose in one to two hours. To capture the peak level of your blood glucose, it is best to test one to two hours after you start eating.

Q: I was recently diagnosed with type 2 diabetes. Should I check my blood glucose two hours from when I start eating or after I finish eating my meal?

A: Most of the food you consume will be digested and raises blood glucose in one to two hours. To capture the peak level of your blood glucose, it is best to test one to two hours after you start eating.

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The American Diabetes Association recommends a target of below 180 mg/dl two hours after a meal. The American Association of Clinical Endocrinologists recommends a lower target: below 140 mg/dl two hours after a meal.

Ask your doctor which target is right for you. Postmeal blood glucose monitoring is important because it helps you see how your body responds to carbohydrates in general and particular foods. Managing postmeal blood glucose can help reduce your risk of developing heart and circulation problems.

Virginia Zamudio Lange, a member of Diabetic Living’s editorial advisory board, is a founding partner of Alamo Diabetes Team, LLP in San Antonio.

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Before And After Meals And Snacks

If you eat first thing in the morning, your first blood sugar check of the day can also count as your pre-meal check, but if you dont, youll need to check again before breakfast.

This can inform you as to how much insulin youll need for your meal . If youre running a little high, youll need to bolus extra, but if your blood sugar is on the lower end, you can take a little less insulin for any carbohydrates eaten.

Checking before every meal and snack can help curb postprandial glucose excursions, otherwise known as the stubborn high blood sugars you sometimes can experience after eating a meal and not adequately bolusing for said meal.

Ideally, you should also be checking 2 hours after all meals as well, to determine if your meal bolus was adequate, if you took too much insulin, or if you need to adjust and take more insulin.

Two hours is the recommended time frame, because by then most carbohydrates have been absorbed into the body and most fast-acting insulin has already peaked.

When checking before snacks , make sure youre calculating any active insulin on board so you dont overtreat a high and end up going low.

Blood Sugar Level Immediately After Eating:

When should you test your Blood Sugar

Blood sugar level changes rapidly according to the intake of the meal. The normal blood sugar level before eating or during fasting is between 3.5 to 6.1 mmol/L.

Normal blood sugar right after eating rises drastically as the digestive tract acts quickly to digest the food through mechanical actions, digestive enzymes and different hormones. So the blood glucose rises sharply during this time. The rate at which the blood sugar rises depends on the type of food, the amount is taken, the metabolic condition of the individual, etc.

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If You Start Stop Or Change Any Medications

Different medications can have an effect on your blood sugar, for example, steroids and anti-psychotic medications increase your blood sugar levels according to the American Diabetes Association. Several medications, such as beta-blockers, bactrim, MAO inhibitors, and metformin can cause low blood sugar according to MedLinePlus. Whenever you start, stop or change medication, it is a good idea to frequently test your blood sugar until you understand how the medication affects your glucose levels.

The Big Picture: Checking Your Blood Sugar

Blood sugar monitoring is the primary tool you have to find out if your blood glucose levels are within your target range. This tells you your blood glucose level at any one time.

Its important for blood sugar levels to stay in a healthy range. If glucose levels get too low, we can lose the ability to think and function normally. If they get too high and stay high, it can cause damage or complications to the body over the course of many years.

The logging of your results is vital. When you bring your log to your healthcare provider, youll have a good picture of your body’s response to your diabetes care plan. To help keep track of your levels, we have a glucose log. We also have a blood glucose log available for purchase that is smaller so you can carry it with you.

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The Effect Of Carbohydrates

Carbohydrates are the main constituent of food that can raise your blood sugar levels. The amount and the type of carbohydrates you eat influence how quickly your blood sugar levels change after eating. Carbohydrates from liquids, such as juices and soft drinks, are usually digested more rapidly, while carbohydrates from solid foods, such as pasta and fruits, take a bit more time to break down. Foods that don’t contain carbohydrates or only very little, such as non-starchy vegetables, butter, eggs, meat, poultry, fish, cheese and nuts, do not have the ability to significantly influence your blood sugar levels.

Knowing Blood Sugar Levels

What Is Normal Blood Sugar After Eating For A Diabetes ...

If you have diabetes, the frequency of testing your blood glucose level depends on your treatment plan, so follow your doctors advice on the appropriate times for you.

Common times to check are in the morning, before and after meals, before and after exercise, at bedtime, and if you feel sick. Some people may not need to check their blood sugar daily.

What you eat and what you do for physical activity affect your blood sugar. But theres no way to know what effect they have unless you test your blood sugar.

Blood glucose meters are used to test blood sugar levels so you can see if your levels are within the target range. Your doctor will also work with you on your individualized range.

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How To Improve Blood Test Results

Identifying the foods or meals that regularly spike your blood sugar too high, too fast, or too long can help you to individualize your diet for longevity.

After a few weeks of testing your blood sugar levels after eating various types of food, you should have a clear record of how your body responds.

A balanced blood sugar results in a greater sense of wellbeing, having more energy, preventing the afternoon crash and feeling hangry , and getting a better nights rest.

Heres what It feels like to have normal blood sugar:

  • No extreme hunger between meals
  • No sleepiness after meals or mid-day
  • Balanced mood

How Food Affects Blood Sugar

When you eat food, your body breaks it down into essential parts:

  • Carbohydrates
  • Fats
  • Vitamins and minerals

All parts are necessary in a healthy diet, but the three types of carbohydrates are particularly important when it comes to your blood glucose level. While the general rule is that the more carbohydrates you eat, the higher your blood sugar level, not all three types of carbohydrates convert to blood sugar at the same rate.

The foods that fit into each carb category include:

  • Starches, or complex carbohydrates: Starchy vegetables, dried beans, and grains
  • Sugars: Fruits, baked goods, beverages, and processed food items like cereals or granola bars
  • Fiber: Whole wheat products, chickpeas, lentils, berries, pears, and brussels sprouts

The glycemic index helps you find out which foods can increase or help decrease blood sugar levels. Based on a scale ranging from 0 to 100, high-indexed foods are rapidly digested, absorbed, and metabolized, resulting in marked fluctuations in blood sugar levels, while low-indexed foods produce smaller fluctuations in your blood glucose.

The American Diabetes Association advises adding lean sources of protein and heart-healthy fats to help reduce the overall glycemic impact of a meal or snack.

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What Should I Do If My Blood Sugar Gets Too Low

Low blood sugar is also called hypoglycemia . It means your blood sugar level drops below 70. Having low blood sugar is dangerous and needs to be treated right away. Anyone with diabetes can have low blood sugar. You have a greater chance of having low blood sugar if you take insulin or certain pills for diabetes.

Carry supplies for treating low blood sugar with you. If you feel shaky, sweaty, or very hungry, check your blood sugar. Even if you feel none of these things, but think you may have low blood sugar, check it.

If your meter shows that your blood sugar is lower than 70, do one of the following things right away:

  • chew 4 glucose tablets
  • drink 4 ounces of fruit juice
  • drink 4 ounces of regular soda, not diet soda or
  • chew 4 pieces of hard candy

After taking one of these treatments, wait for 15 minutes, then check your blood sugar again. Repeat these steps until your blood sugar is 70 or above. After your blood sugar gets back up to 70 or more, eat a snack if your next meal is 1 hour or more away.

If you often have low blood sugar, check your blood sugar before driving and treat it if it is low.

What If I Have Severe Low Blood Glucose And Cant Treat Myself

Clearing Up Myths About Blood Sugars After Eating

Glucagona hormone that raises blood glucose levelsis the best way to treat severely low blood glucose. Available as an injection or a nasal spray, glucagon will quickly raise your blood glucose level. Your doctor can prescribe you a glucagon kit for use in case of an emergency.

If your blood glucose level drops very low, you wont be able to treat it by yourself. Be prepared to address severely low blood glucose by

  • talking with your doctor or health care team about when and how to use a glucagon emergency kit. If you have an emergency kit, regularly check the date on the package to make sure it hasnt expired.
  • teaching your family, friends, and coworkers when and how to give you glucagon. Tell them to call 911 right away after giving you glucagon or if you dont have a glucagon emergency kit with you.
  • wearing a medical alert identification bracelet or pendant. A medical alert ID tells other people that you have diabetes and need care right away. Getting prompt care can help prevent the serious problems that low blood glucose levels can cause.

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Testing Too Soon After Eating

Knowing when to test and why that information is useful can help you better control your diabetes. “Often, people will test blood sugar half an hour or an hour after they eat,” says Uelmen, but this is sooner than experts recommend.

Testing too soon after you’ve had a meal or a snack will give you results that are probably too high. The solution for better diabetes control: Test fasting blood sugar, and test every time before you eat. Wait two hours after eating to get the best reading.

Before Driving A Vehicle Or Operating Machinery

Low blood sugar levels can cause fatigue, dizziness, cognitive difficulties, and loss of muscle coordination according to FamilyDoctor.org.It can be dangerous to drive a motor vehicle or operate machinery with low blood sugar levels. Check your glucose to see if you need to eat a snack before driving.

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What Is A Normal Blood Sugar Level Immediately After Eating

What Are Normal Blood Sugar Levels? Theyre less than 100 mg/dL after not eating for at least 8 hours. And theyre less than 140 mg/dL 2 hours after eating. During the day, levels tend to be at their lowest just before meals.

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