The Role of Nutrition in Diabetes Management
November is Diabetes Awareness Month, a time dedicated to bringing attention to those who are affected by the chronic disease. It’s also an opportunity to educate individuals on the importance of nutrition for diabetes management.
What is Diabetes and How is it Managed?
Diabetes is a chronic disease that occurs when either the body doesn’t have the ability to produce insulin or is not able to properly use the insulin that is produced. Insulin is a hormone that is created in the pancreas and helps to regulate blood sugar levels, also known as blood glucose levels. Because of this, individuals with diabetes have higher than normal blood sugar values.
There are two main types of diabetes, type 1 and type 2 diabetes. Type 1 diabetes is an autoimmune condition where the insulin producing cells in the pancreas are destroyed. Onset of this disease typically occurs in children or young adults. These individuals take insulin on a daily basis to regulate their blood glucose levels. Type 2 diabetes occurs when the body is resistant to insulin, or doesn’t produce enough insulin. Onset is often linked to poor diet, physical inactivity, and obesity. Unlike type 1 diabetes, type 2 diabetes can be managed with lifestyle changes such as practicing good nutrition and weight loss. It is also managed with medication and sometimes insulin in more severe cases.
Another form of diabetes is gestational diabetes. This condition occurs during pregnancy and typically is resolved at childbirth. Women who develop gestational diabetes do have a higher risk of developing type 2 diabetes. Maintaining a healthy weight, eating a balanced diet, exercising regularly, and managing stress levels can help to prevent the onset of gestational diabetes during pregnancy.
Nutrition for Diabetes Management
Nutrition plays an important role in regulating blood sugar levels, in both type 1 and type 2 diabetes. Based on which type you have, the nutrition approach may differ slightly. Both approaches emphasize:
- Carbohydrate control
- Incorporating fiber, lean protein, and healthy fats
- Limiting added sugar, saturated fats, sodium and alcohol intake
Carbohydrates
Carbohydrates are the primary source of glucose in the bloodstream, therefore the more carbohydrates someone eats, the higher their blood sugar. There are three main types of carbohydrates; sugar, starches, and fiber. Foods such as fruit, milk, and table sugar contain sugar. Starches are complex carbohydrates and can be found in pastas, breads, rice, and potatoes. Fiber is an indigestible form of carbohydrate that is found in fruits, vegetables, whole grains, and legumes. Because fiber is not digested by the body, it doesn’t directly raise blood sugar levels.
When carbohydrates are eaten by somebody without diabetes, the body breaks them down into glucose, where it is then absorbed by the blood stream. This results in an increase in blood sugar, causing the pancreas to produce insulin. Insulin gives cells in the blood the key to absorb glucose, bringing blood sugar levels back down. As discussed, individuals with type 1 diabetes don’t produce insulin, therefore they take insulin on a daily basis, whether it be through injections, a pump, or other forms. As a result, they must balance their insulin and carbohydrate intake to maintain a blood sugar that is within normal range. This is done through carb counting, a method where people track the amount of carbohydrates they eat to calculate the correct insulin dosage. This method involves understanding what foods contain carbohydrates to be able to properly estimate carbohydrate content in meals.
Individuals with type 2 diabetes produce insulin, but the body either isn’t able to use it properly or there isn’t enough insulin being produced. Carb counting is still an effective nutrition method, as it helps to maintain healthy blood sugar levels, can help your body become more responsive to insulin, and can lower A1c levels. If you want to learn more about what foods contain carbohydrates and how to carb count, schedule a consultation with us!
Fiber
As previously mentioned, fiber is a type of carbohydrate that is not digested by the body. There are two types of fiber, insoluble fiber and soluble fiber. Soluble fiber dissolves in water, forming a gel substance in the gut that can slow the absorption of carbohydrates into the bloodstream, preventing spikes in blood sugar. Soluble fiber is rich in legumes and vegetables, such as lentils, chickpeas, broccoli, and brussels sprouts. Insoluble fiber adds bulk to stool which helps to regulate bowel movements. While it doesn’t directly affect blood sugar levels, it helps to prevent constipation, which is a common symptom of individuals with diabetes. Foods rich in insoluble fiber are whole grains, flax seeds, spinach, and berries.
Protein and Healthy Fats
Adding healthy fats, such as olive oil, avocados, fish, and nuts, into your diet can also help to slow down the digestion and absorption of carbohydrates. Healthy fats also help to reduce the risk of other chronic diseases, such as heart disease.
Foods to Limit
Certain foods can have a negative impact on blood sugar, whether it be directly or indirectly. Food and drinks that directly spike blood glucose are typically high in added sugar, such as sugary cereals, pastries, cookies, sugary sweetened beverages such as soda and lemonade. Highly processed snacks can also spike blood sugar, including chips, crackers, and granola bars, as well as refined carbohydrates such as white bread and pasta.
Unhealthy Fats
Consuming unhealthy fats can have a negative effect on insulin sensitivity, decreasing the body’s ability to use insulin properly to lower blood sugar levels. Overconsumption of unhealthy fats can also increase the risk of cardiovascular disease and promote weight gain. Foods typically high in unhealthy, or saturated, fats include fatty cuts of meat, full fat dairy products, butter, fried foods, pastries, and cookies.
Sodium
Individuals with diabetes would benefit from consuming sodium in moderation. Consuming too much salt can cause high blood pressure, or hypertension, which increases your risk for heart disease and kidney damage. This is important because, over time, diabetes can have an effect on kidney function. Limit sodium intake by reducing the consumption of highly processed foods such as canned soups, frozen meals, deli meats, and snack foods such as chips and crackers.
Alcohol
Alcohol, especially when consumed with sugary sodas or other beverages, has a complex effect on blood sugar levels. Drinking alcohol, especially on an empty stomach, leads to spikes and drops in blood sugar. This makes it hard to manage insulin administration for individuals who have type 1 diabetes. Additionally, people who have had diabetes can usually identify when their blood sugar is low from certain symptoms, such as dizziness, shakiness, and confusion. These symptoms can be masked by alcohol intake, making it harder to determine if blood sugar levels are low. Alcohol should be consumed in moderation, and when it is consumed, trying pairing it with food to prevent drops in blood sugar.
Want to Learn More about Nutrition for Diabetes Management?
Proteins and healthy fats play a vital role in managing diabetes. Protein doesn’t have a direct impact on blood sugar levels, therefore it doesn’t cause spikes. And incorporating lean proteins, such as chicken, fish, tofu, and eggs, can help to support improved insulin function. Eating protein also promotes satiety and decreases the risk of overeating, which can help to promote a healthy weight. Combining protein with fiber rich foods, it can slow the digestion of carbohydrates, preventing blood sugar spikes.
Nutrition plays a huge role in the prevention and management of diabetes, regardless of what type it is. Unmanaged or untreated diabetes can lead to long term health complications, such as heart disease, kidney damage, eye damage, and foot problems. You have the power to incorporate good nutrition habits that can have a positive effect on your overall health and wellness. If you want help incorporating good nutrition for diabetes management, schedule a consultation with us!
Jalpa is a registered dietitian and nutritionist with a Master’s degree in Health & Nutrition from Brooklyn College, CUNY in New York. She also holds a Certificate of Training in Adult Weight Management through the Academy of Nutrition & Dietetics, CDR.
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