Milly Gaines
Prediabetes is a condition where blood sugar levels are elevated but do not meet the criteria of type 2 diabetes. While there is no one-size-fits-all diet for prediabetes, certain dietary changes can help to reduce the risk of developing type 2 diabetes. These include limiting added sugars, refined carbohydrates, and alcohol consumption, as well as increasing fibre, lean protein, and whole food intake. The Mediterranean diet is often recommended as a gold standard for people with prediabetes, but individuals should consult with their doctor or dietitian to develop a personalised plan that suits their lifestyle and preferences.
Diet for Prediabetes
| Characteristics | Values |
|---|---|
| Diet Type | Mediterranean, Plant-based (vegetarian or vegan), DASH, Keto, Intermittent Fasting |
| Food Groups | Whole grains, Lean protein, Low-fat dairy, Fruits, Vegetables, Nuts, Healthy fats |
| Macronutrients | Carbohydrates, Fats, Protein, Fiber |
| Macronutrient Recommendations | Limit refined and processed carbohydrates, Opt for complex carbohydrates, Include protein with meals, Increase fiber intake |
| Sugar | Limit added sugars to <10% of total energy intake, Ideally limit to 5% for added health benefits |
| Alcohol | Consume in moderation or not at all |
| Lifestyle | Get 7-8 hours of sleep, Exercise regularly |
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What You'll Learn
The Mediterranean diet is recommended for prediabetes
The Mediterranean diet is a sustainable and effective way to improve insulin sensitivity and manage blood sugar levels. Research has shown that it can reduce the risk of prediabetes progressing into Type 2 diabetes. It is a preferred option because it is not a restrictive diet with off-limit foods; instead, it encourages a gradual shift to healthier eating habits. This flexibility makes it easier to adopt as a long-term lifestyle change.
The Mediterranean diet is also beneficial for improving heart health and reducing the risk of cardiovascular events. It has been shown to improve arterial blood flow and reduce the odds of a heart attack by up to 30%. This is due to the anti-inflammatory and antioxidant properties of the diet, which include heart-healthy unsaturated fats. The Mediterranean diet also encourages physical activity and mindful eating, which can further enhance heart health and overall well-being.
Additionally, the Mediterranean diet can aid in weight loss and maintaining a healthy weight, which is crucial for managing prediabetes and preventing its progression. It promotes a balanced intake of nutrients and emphasizes the importance of physical activity, which can lead to a calorie deficit and subsequent weight loss.
It is important to note that while the Mediterranean diet is a recommended framework for prediabetes, individual needs may vary. It is always advisable to consult with a healthcare professional or a registered dietitian to determine the best dietary approach for your specific circumstances.
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Avoid high-sugar liquids like honey
While there is no one-size-fits-all diet for prediabetes, it is important to adopt a well-balanced diet with healthier eating habits. Prediabetes is characterised by higher-than-normal blood sugar levels, so it is important to avoid foods that cause blood sugar spikes. Liquids with high sugar content, such as honey, should be avoided as they can negatively impact blood sugar levels.
Honey is a sweetener made by bees when they gather nectar from flowers. The nectar breaks down into simple sugars, including fructose and glucose, and turns into honey. Honey is considered an "added sugar" on nutritional labels and is not a naturally occurring component of food or drink. As such, honey is a liquid with a high sugar content and should be consumed in moderation or avoided altogether by those with prediabetes.
Honey is a natural sugar and a carbohydrate, so it is only natural that it raises your blood sugar. This can be problematic for those with prediabetes, as they need to carefully manage their blood sugar levels to prevent the condition from progressing into type 2 diabetes. While some sources claim that honey is a healthier alternative to table sugar due to its anti-inflammatory and antioxidant properties, it is still important to limit your intake. Honey is sweeter than sugar, so if you are using it as a substitute, you will need less.
It is worth noting that the effects of honey on blood sugar levels are not fully understood, and research has produced mixed results. Some studies suggest that honey may even have beneficial effects on blood sugar control. However, given the uncertainty and the potential risks, it is always best to consult your doctor or dietitian before adding honey to your diet, especially if you are taking insulin or other medications. They can help you determine how much, if any, honey is safe for you to consume based on your individual needs and circumstances.
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Limit refined carbohydrates and added sugars
While some sugar is necessary for your body to function, excessive intake of refined carbohydrates from added sugar can worsen prediabetes. The World Health Organization advises limiting added sugars to less than 10% of your total energy intake. For instance, for someone on a 2,000-calorie daily diet, this would mean limiting sugar calories to about 50 grams or 12 teaspoons. For added health benefits, the WHO recommends limiting sugar calories to 25 grams or about six teaspoons, which is 5% or less of your total energy intake. The American Heart Association recommends that people at risk for heart disease, including those with prediabetes, consume less than six teaspoons of sugar a day for women and less than nine teaspoons for men.
To limit your intake of refined carbohydrates and added sugars, it is important to read nutrition labels and be mindful of the amount of added sugar in packaged foods and drinks. Added sugars are commonly found in processed foods such as cookies, cakes, candies, flavoured oatmeal, ketchup, and jelly. Additionally, sugary beverages, such as honey or maple syrup, should be avoided. Instead, opt for water or other zero-calorie beverages.
When it comes to carbohydrates, it is recommended to choose complex carbohydrates over simple or refined carbohydrates. Complex carbohydrates, such as whole grains, legumes, and starchy vegetables, provide a slower release of glucose into the bloodstream due to their high fibre content. On the other hand, simple carbohydrates, found in foods like white bread, white rice, and sweets, cause a rapid increase in blood sugar levels. Therefore, it is advisable to limit portion sizes of refined carbohydrate foods and opt for healthier alternatives like brown rice, farro, or quinoa.
While it is important to limit refined carbohydrates and added sugars, it does not mean completely eliminating them from your diet. Gradual behaviour changes and a balanced approach to diet are recommended. For example, if you crave something sweet, try pairing a piece of fruit with a protein source, such as nuts or yogurt, to slow the release of glucose into your bloodstream. Additionally, getting adequate sleep of seven to eight hours a night can help reduce cravings for sugary foods.
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Alcohol should be consumed in moderation or not at all
Alcoholic beverages are a form of carbohydrate and are high in calories. Excessive alcohol consumption can be associated with obesity and can affect blood sugar levels. It can also interfere with the actions of insulin, leading to higher blood sugar levels. According to research published in Biomolecules, alcohol can affect carbohydrate metabolism, especially when consumed in excess.
For these reasons, it is generally recommended that people with prediabetes reduce their alcohol consumption or stop drinking altogether. Moderate drinking may be acceptable, but it is important to be cautious and aware of the risks involved. The specific guidelines for moderate drinking vary, but most sources recommend staying under one to two drinks per day for men and under one drink per day for women. It is also important to avoid drinking on an empty stomach and to be mindful of the types of mixers used, as sugary options can further increase blood sugar levels.
Additionally, alcohol can lower your inhibitions and make it harder to resist unhealthy foods or say no to bar snacks and restaurant foods. It can also increase your appetite, making you feel hungrier and potentially leading to overeating. Alcohol can cause a spike in blood sugar levels, followed by a drop, which can lead to cravings for carbohydrates and other sugary foods. Therefore, it is crucial for people with prediabetes to be mindful of their alcohol consumption and how it may impact their dietary choices and blood sugar control.
Furthermore, alcohol consumption can contribute to weight gain, which is a risk factor for the development of type 2 diabetes. It is important to be aware of the amount and type of alcoholic beverages consumed, as different drinks contain varying amounts of alcohol and calories. Reassessing alcohol intake is one way to address prediabetes and reduce the risk of developing type 2 diabetes.
In summary, while moderate alcohol consumption may be acceptable for some people with prediabetes, it is generally advisable to consume alcohol in moderation or not at all. The specific guidelines for moderate drinking should be discussed with a healthcare professional, as individual factors and medical history can influence recommendations.
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Prioritise fruits, vegetables, whole grains, lean protein and low-fat dairy
While there is no one-size-fits-all diet for prediabetes, it is important to make healthier eating choices that can help lower your risk of developing type 2 diabetes. A balanced diet that includes a variety of fruits, vegetables, whole grains, lean protein, and low-fat dairy can be a great way to maintain stable blood sugar levels and improve overall health.
Fruits and vegetables are packed with essential vitamins, minerals, and fiber, which can help you feel fuller for longer and regulate blood sugar. Opt for non-starchy vegetables, as starchy vegetables like potatoes are high on the glycemic index (GI) and can cause blood sugar spikes. Additionally, be mindful of the sugar content in fruits, especially as they ripen, and choose whole fruits over fruit juices to get the most fiber.
Whole grains are another important component of a prediabetes diet. They are rich in fiber and help slow down glucose absorption, preventing blood sugar spikes. Examples include brown rice, parboiled rice, basmati rice, rolled oats, and steel-cut oats, which have lower GI scores than refined grains like white rice and quick-cooking oatmeal.
Lean protein sources such as tofu, fish, chicken, turkey, and low-fat yogurts are excellent additions to your meals. Protein helps you feel satiated after meals and slows the rate at which carbohydrates enter your bloodstream, keeping blood sugar levels stable.
Low-fat dairy products are also recommended as they provide essential nutrients without the high saturated fat content found in full-fat dairy. This can help reduce your risk of heart disease, which is a concern for those with prediabetes.
Remember, portion control is also crucial. Eating large amounts of carbohydrate-containing foods, even whole grains, can still cause blood sugar levels to rise. So, watch your portion sizes, read food labels, and incorporate a variety of the aforementioned foods into your diet to maintain a balanced and nutritious meal plan.
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Frequently asked questions
There is no one-size-fits-all diet for prediabetes, but the Mediterranean diet is often regarded as the gold standard. This diet emphasises whole grains, lean protein, and healthy fats. Other recommended diets include the ketogenic (keto) diet, intermittent fasting, and the DASH (Dietary Approaches to Stop Hypertension) diet.
It is recommended to eat a balanced diet with plenty of fruits, vegetables, whole grains, lean protein, and fibre. It is also important to limit refined and processed carbohydrates that can cause spikes in blood sugar.
It is best to avoid drinks that are high in sugar, such as honey or sugary juices. Alcoholic beverages are a form of carbohydrate, so it is recommended to consume these in moderation or not at all.
