Dr. Z. Colette Edwards is a passionate Ivy League-trained physician who began her career providing care and serving as the associate medical director of a large multi-site, multispecialty medical group. She is the author of Be Less Stressed, co-author of…
Have you ever felt like you’re eating something healthy, but you still find yourself hungry shortly after? It could be related to the glycemic index (GI) of the foods you consume. The glycemic index has become a tool that helps us understand how what we eat could influence our daily energy levels and well-being.
So, what is the glycemic index? It measures the impact of carbohydrates on your blood sugar level. The GI classifies foods on a scale from 0 to 100 based on how quickly they cause your blood sugar to rise. It was originally developed by Dr. David J. Jenkins and some of his colleagues at the University of Toronto when they were researching the best diet for people with diabetes. Foods are categorized as low (55 or less), medium (56-69), or high (70 or more) on the GI scale.
Foods with a low glycemic index are digested slowly, which provides a steady release of energy that helps avoid those moments of sudden fatigue and hunger. In contrast, high-glycemic index foods cause rapid spikes in blood sugar, followed by abrupt drops that can leave you feeling tired and craving more (1).
Understanding the glycemic index is relevant for those with certain health conditions such as diabetes (2). In addition to helping reduce the risk of diabetes and make diabetes management easier, a low-glycemic approach to nutrition may also help with lowering blood pressure and cholesterol levels, losing weight, and reducing the likelihood of heart and blood vessel diseases.
A mindful approach to the foods you choose could make a significant difference to your health, well-being, and quality of life.
What Is a Balanced Low-Glycemic Meal Plan?
A balanced low-glycemic meal plan focuses on selecting options that help you maintain steady energy levels and control hunger. By choosing foods with a low glycemic index, you can reduce blood sugar spikes and dips, which can lead to fewer cravings and better appetite control.
The key to this type of plan lies in the appropriate combination of different types of nutrients. By carefully selecting your foods, you can contribute to a balance that supports healthy eating and helps prevent those pesky cravings throughout the day.
What Are Some Low-Glycemic Foods?
Foods that have a glycemic index are primarily carbohydrates. However, within this category, there are various types of carbohydrates. Choosing those with a lower GI could be a good strategy to optimize your health and well-being. In addition to carbohydrates, they usually contain fiber or fat, which slow down digestion and cause the body to absorb them more slowly than foods with a high GI (3, 4).
Here are some of the foods with the lowest glycemic index:
Legumes: Lentils, chickpeas, black beans, kidney beans, and peas
Non-starchy vegetables: Spinach, broccoli, kale, lettuce, carrots, cauliflower, asparagus, green beans, tomatoes, bell peppers, cucumbers, eggplant, zucchini, and mushrooms
Whole grains: Oats (not instant), quinoa, barley, brown rice, and buckwheat
Nuts and seeds: Walnuts, almonds, chia, and flax seeds
There are several low-glycemic food lists that group foods according to their GI. Generally, a food with a GI less than 55 is considered low (5). If you want a personalized low-glycemic plan, a consultation with a registered dietitian can be helpful, particularly if you have a condition like diabetes.
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What Food Has a Zero Glycemic Index?
There are also foods that don’t contain a significant amount of carbohydrates or aren’t considered sources of carbohydrates, so they don’t have a glycemic index. Zero GI foods help maintain stable energy levels and promote a balanced diet.
Some examples include:
Meats: Chicken, beef, and fish.
Eggs: Rich in protein and free of carbohydrates.
Healthy fats: Olive oil, avocado, and nuts.
Dairy: Greek yogurt (plain, whole-fat) and cheese.
Plant-based: Broccoli, cauliflower, and cucumber
Note that foods such as beef and most cheeses should be eaten in moderation. Although their GI may be zero, they are high in saturated fat, which can cause inflammation and increase the risk of conditions like heart disease.
What Foods Should I Avoid Eating on a Low-GI Diet?
Let’s take a look at foods that are best to avoid in large quantities when you’re following a low-glycemic index diet.
It’s not about demonizing any food – the key is moderation and understanding how they work. If they’re consumed frequently and in large amounts, the following foods could slightly destabilize your goal of maintaining a low GI:
Products made with refined white flour: For example, white bread, white pasta, packaged cookies and crackers, cakes, doughnuts, etc. Why? Because white flour is digested very quickly, which would cause a spike in blood sugar followed by a sudden drop. It’s better to opt for whole-grain versions, which have more fiber and are digested more slowly.
Refined sugars and sugary drinks: For example, sodas, store-bought juices, candies, and ice cream. They tend to have a lot of sugar, which the body absorbs very quickly, raising the GI and inflammation. In turn, your risk of obesity, diabetes, liver disease, and heart disease increases. A 2021 study found that sugary drinks increased the risk of colorectal cancer in women under the age of 50. Try to sweeten your meals with alternatives such as stevia, erythritol (in moderation), or a little raw honey (which also has its GI but provides some nutrients) (6). Better yet, gradually get used to the natural flavor of foods – your body will thank you!
Vegetables with a higher glycemic index: Yes, some have more starch than others. White potatoes often have a high GI. Try to combine them with other low-GI vegetables or proteins to balance the glycemic load of the meal, or cook them and eat cold to achieve a more resistant starch.
Very ripe or highly processed fruits: A very ripe banana has a higher GI than a greener one, for example. Fruit juices (even if they are natural) have concentrated sugar and lose fiber, so it’s better to eat the whole fruit.
Highly processed foods in general!: Often contain added sugars, refined flours, and other ingredients that raise their glycemic index without you realizing it.
Remember, it’s not about depriving yourself of everything you like, it’s about making more conscious choices and finding healthier alternatives. Small changes can make a big difference. Making swaps and reducing your consumption of the foods on the list above are habits that make weight loss/management easier and improve your overall health and well-being by reducing the risk of a multitude of chronic conditions and certain cancers, in addition to disruptions to your gut microbiome.
In addition to combining zero glycemic foods with low-glycemic index foods, there are other strategies to reduce the glycemic index of certain foods.
The glycemic index of a food could be affected by certain factors, such as the ripeness of a piece of fruit, so you need to think about more than just the glycemic index of a food itself when you’re choosing healthy options.
Here are some tips to keep in mind when selecting meals (7):
Portion size still matters because calories still count, just like the amount of carbohydrates. It’s important to be mindful of portion sizes and the number of carbohydrates in a meal, even if they are low-GI foods.
Generally, processed foods tend to have a higher GI. For example, fruit juice and instant potatoes have a higher GI than whole fruit and baked potatoes. In addition, processed and ultra-processed foods are typically high in fat, sugar, and/or sodium and low in fiber. They may also have food dyes and additives. Most importantly, they trigger inflammation in the body and increase the risk of chronic conditions such as obesity, high blood pressure, diabetes, high cholesterol, and heart disease and may contribute to the development of certain cancers. They also negatively impact the gut microbiome, potentially leading to digestive issues and other health problems by disrupting the balance of gut bacteria, promoting the growth of harmful bacteria, and reducing the variety and number of beneficial ones.
Cooking can affect the GI of a food. For example, al dente pasta has a lower GI than fully cooked pasta. In addition, cooling foods after cooking them (such as potatoes or rice) generates the formation of resistant starch, which lowers the GI of those foods (8).
Foods with a higher fat or fiber content tend to have a lower GI.
Certain foods of the same class can have different GI values. For example, white rice has a higher GI than brown rice, which means it can lead to a quicker spike in blood sugar levels. Similarly, rolled oats typically have a lower GI than instant oats.
Some high-GI foods may contain a high nutrient content, so balance them with foods that have a lower GI. Choose a variety of healthy foods, keeping in mind the nutritional value of the entire meal, in addition to the GI of the foods.
Like many tools, there are some limitations to the GI Index. Two important ones are:
It doesn’t take portion size into account. And the rate and degree of a blood glucose (blood sugar) spike are impacted by the amount of any given food you eat. Another metric – glycemic load (GL) – classifies food based on a typical service size and is generally considered a more accurate measure. The scale for the GL is:
GL ≤ 10 = low
GL of 11 – 29 = medium
GL ≥ 20 = high
It doesn’t take nutrient content into account. Therefore, there are foods with higher GIs that may still be beneficial because of other characteristics it may have, e.g. higher fiber, higher in needed vitamins.
As in most situations, the key for most people is moderation and balance, so you don’t end up fearing food or making things worse by being extreme when it comes to your eating habits.
As always, it’s important to consult a medical professional for guidance regarding the nutritional plan that’s the best fit for you, considering factors such as age, underlying medical conditions, physical activity level, medications, family history, and food intolerances.
What Is a Good Low-Glycemic Breakfast?
A low-GI breakfast is an excellent way to start the day with stable energy and avoid sugar spikes that may leave you wanting to eat more by mid-morning.
So, instead of just grabbing something quick and processed, try a super delicious option that’s easy to prepare and will keep you satisfied until lunchtime: Chia pudding!
The night before, in a jar or container, mix about a third of a cup of Greek yogurt (which is high in protein and helps you feel full longer) with two tablespoons of rolled oats (a source of fiber) and one or two tablespoons of chia seeds (healthy fats).
Then, you could add a splash of milk (it can be almond milk, coconut milk, or whichever you like the most) to keep it from being too thick. Mix it well, and let it rest in the fridge overnight.
The next morning, add a good portion of fresh or frozen berries (e.g. raspberries, blueberries, strawberries). Berries are low in fat, have a low GI, are packed with antioxidants, and give a sweet and refreshing touch to the pudding (9).
And to add some crunch and more healthy fats, don’t forget the nuts. A handful of almonds, walnuts, or hazelnuts, or if you prefer, you could add a teaspoon of pasteurized, raw nut butter, such as almond or peanut butter (make sure it has no added sugars).
This recipe is an example of a low-GI breakfast, and it’s also delicious and nutritious. And you can adapt it to your tastes. The important thing is that you’re nourishing your body with real ingredients, minimizing the impact on your blood sugar levels, and giving yourself the energy you need to tackle the day.
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Generally, snacks get a bad rap because the types we often find most tempting are full of (empty) calories, fat, sugar, and/or salt. However, a well-chosen snack could be a good source of energy and nutrients between meals, particularly if you have a busy day or if you’re exercising. It’s simply about making smart choices and not about eliminating snacks altogether, but rather about identifying ones that are healthy and nourish your body.
Bonus: If you start filling your main meals with more nutritious and satiating ingredients, you may find over time without realizing it that your craving for unhealthy snacks starts to fade away.
Ideas for Low-Glycemic Snacks:
A Handful of Nuts: Nuts are an excellent source of healthy fats, protein, and fiber, which will help keep you feeling full and satisfied longer. Be careful about portion size, though, because the calorie count adds up quickly.
Hummus with Fresh Vegetables: Enjoy hummus made from chickpeas and pair it with carrot sticks, celery, cucumber, or tomatoes.
Buckwheat or Sourdough Toast with Avocado: Buckwheat or sourdough bread topped with avocado and a squeeze of lemon or a sprinkle of salt.
Hard-Boiled Egg: Yes, it’s that simple! A hard-boiled egg is an incredible source of high-quality protein and essential nutrients. It’s super convenient to take with you and will fill you up much more than any cookie or bag of chips.
Green Smoothie: Made with spinach, half a banana on the greener side, a low-GI plant-based milk (almond or soy), and a tablespoon of chia seeds.
Bonus: You’re probably wondering how to choose a delicious dessert while still keeping it healthy. Here’s a little secret: Just because it’s low-glycemic doesn’t mean you have to sacrifice flavor. It’s all about making smart ingredient choices and combining them in a way that allows your body to process them gradually and steadily.
Sugar-Free, Gluten-Free Desserts:
Avocado and Cocoa Mousse: The creamy texture of avocado combined with pure cocoa (unsweetened) is wonderful. You can sweeten it with a bit of stevia or erythritol if needed, and add a touch of cinnamon or vanilla extract. Just mix everything together and let it chill.
Gluten-Free Oat and Nut Bars: These bars are perfect for a sweet and healthy snack. Mix gluten-free oat, nuts, seeds, and a bit of nut butter to bind everything, together with a low-GI sweetener such as dates. Press the mixture into a mold, let it cool, and cut it into portions.
Baked Apples with Cinnamon and Nuts: Cut the apples in half, remove the core, and sprinkle with cinnamon, then add a handful of chopped nuts. Bake them until they’re soft, and you’re done.
And an extra tip: remember that moderation is the key. Enjoy them mindfully, savoring each bite and listening to your body so you don’t eat past the point of being full.
Below is an example of a 7-day low-glycemic diet plan. Remember, this is just a sample, and you could (and should) adjust it to fit your preferences, which is why consulting a registered dietitian can be quite beneficial.
Generally, the key is to choose nutritious foods that don’t significantly raise your blood sugar levels, so you’ll have steady energy throughout the day and feel fuller.
Most importantly, before you start, listen to your body! Everyone reacts differently to food. Pay attention to how you feel after eating. Do you have energy and feel satisfied, or do you feel heavy, tired, and hungry again in an hour? Adjust your plan accordingly.
7-Day Low-Glycemic Diet Plan
Day 1:
Breakfast: Whole-grain oatmeal with berries (strawberries, blueberries, raspberries) and a handful of nuts.
Lunch: Large salad with grilled chicken or tofu, lots of vegetables (carrots, tomato, cucumber, bell peppers), avocado, and a light dressing made with olive oil and lemon.
Dinner: Baked wild-caught salmon with asparagus and baked sweet potato.
Day 2:
Breakfast: Unsweetened plain Greek yogurt with homemade granola (no added sugars) and chopped fruit (10).
Lunch: Lentil and low-GI vegetable soup.
Dinner: Lean meat (chicken, turkey, or beef) stir-fried with broccoli, mushrooms, and brown rice.
Day 3:
Breakfast: Scrambled eggs with spinach and cottage cheese.
Lunch: Tuna salad (in water) with lettuce, tomato, and avocado.
Dinner: Bean chili with lean meat or simply vegetarian.
Day 4:
Breakfast: Green smoothie with spinach, banana (not overly ripe), almond milk, and chia seeds.
Lunch: Turkey sandwich on whole-grain bread with lettuce, tomato, and cucumber.
Dinner: Homemade pizza with a cauliflower crust, fresh tomato sauce, low-GI vegetables, and low-fat mozzarella cheese (11).
Day 5:
Breakfast: Sourdough toast with avocado and a poached egg.
Lunch: Chickpea salad with cucumber, tomato, red onion, and lemon-parsley dressing.
Dinner: Curry chicken with low-GI vegetables and quinoa.
Day 6:
Breakfast: Chia pudding with coconut milk and fresh fruit.
Lunch: Romaine lettuce wraps filled with ground meat, low-GI vegetables, and yogurt sauce.
Dinner: Turkey meatloaf with cauliflower mash instead of mashed potatoes and broccoli (12).
Day 7:
Breakfast: Omelet with chopped low-GI vegetables.
Lunch: Leftovers from the previous night’s dinner.
Dinner: Grilled wild-caught cod with lemon lentil salad and roasted green vegetables.
Click here for more information that may be helpful in designing more low-glycemic meals.
Frequently Asked Questions
Can you eat eggs on a low-glycemic diet?
Yes, you can eat eggs on a low-glycemic diet. Eggs have a glycemic index of zero and are an excellent source of protein.
Is rice low-glycemic?
Rice isn’t low in glycemic index. As previously mentioned, it’s important to choose rice that’s high in fiber, such as brown rice, or use cooking techniques to reduce the glycemic index of foods like rice
Are bananas low-glycemic?
Bananas are not considered to have a low glycemic index. However, as previously mentioned, it’s good to know that less ripe bananas have a lower glycemic index.
What foods have a zero glycemic index?
Foods with a glycemic index of zero include meat, fish, eggs, and oils. As previously mentioned, foods that have no glycemic index are those that are not primarily sources of carbohydrates.
The Bottom Line
Managing your energy levels and satiety could be easier if you understand the glycemic index (GI) of the foods you choose. This index classifies carbohydrate-containing foods according to their effect on blood sugar levels.
By choosing more protein, healthy fats, and fiber and mixing your nutrients wisely, you’ll stay fuller for longer and keep your energy humming. Think of it as fueling your body, not just filling it.
And if you want a plan that works with your unique lifestyle, a registered dietitian can be your best ally. They’ll help you fine-tune your choices so eating well feels effortless, not overwhelming.
DISCLAIMER:
This article is intended for general informational purposes only and does not serve to address individual circumstances. It is not a substitute for professional advice or help and should not be relied on for making any kind of decision-making. Any action taken as a direct or indirect result of the information in this article is entirely at your own risk and is your sole responsibility.
BetterMe, its content staff, and its medical advisors accept no responsibility for inaccuracies, errors, misstatements, inconsistencies, or omissions and specifically disclaim any liability, loss or risk, personal, professional or otherwise, which may be incurred as a consequence, directly or indirectly, of the use and/or application of any content.
You should always seek the advice of your physician or other qualified health provider with any questions you may have regarding a medical condition or your specific situation. Never disregard professional medical advice or delay seeking it because of BetterMe content. If you suspect or think you may have a medical emergency, call your doctor.
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