Your Breakfast Favorites—and Their Hidden Impact on Blood Sugar

Familiar with the afternoon slump? Have trouble sleeping through the night? Struggle with PMS symptoms? You’re not alone. These are all signs that your blood sugar is out of whack. Blood sugar—also known as blood glucose—is our body’s primary fuel source. It comes from what we eat, and we need it for survival! But the right amount is key; not too little, and definitely not too much. When it’s too high, it can lead to a host of problems: intense cravings, mood swings, restless nights, and hormonal chaos. The worst part? If you’re starting your day with the wrong foods, you could be spiking your glucose levels right from the get-go. Let’s dive into breakfast foods that spike blood sugar—and better options to keep you balanced and energized.

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What is blood sugar?

Without knowing exactly what it means, you’ve probably heard of the term. As mentioned, blood sugar plays a role in our energy, feelings, focus, and more. In fact, you may already be familiar with spikes and dips in blood sugar! Hello, post-lunch energy crash. In essence, blood sugar is the amount of sugar (glucose) in your blood at any given time. It’s produced when you break down carbohydrates. Be it a piece of fruit, bowl of rice, or a slice of cake, that carb is absorbed into the bloodstream. How quickly your body absorbs—and processes—this glucose directly affects your energy levels, mood, and even your hunger throughout the day.

Keep in mind that blood sugar awareness is useful for everyone, not just pre-diabetics, diabetics—or in my case, a woman with PCOS.

Why is blood sugar balance important?

Maintaining stable blood sugar is life-changing. With a few tweaks, you can feel much more vibrant, energetic, and focused! It’s also key for shedding unwanted body fat and achieving your physique goals. On a day-to-day basis, staying in your target range is equally important. It can improve your energy, balance hormones, and stabilize your mood. Additionally, in order to prevent (or delay) long-term, serious health problems—heart disease, vision loss, kidney disease, etc.—you want to keep your blood sugar levels within normal range.

What are normal blood sugar levels?

Blood sugar levels fluctuate throughout the day, depending on when and what you eat, as well as how active you are. After eating, glucose levels tend to rise and then gradually return to normal as insulin helps move glucose into cells for energy. According to Levels Health, normal fasting blood glucose levels are generally considered between 70 and 100 mg/dL, with postprandial (after meal) blood glucose levels not exceeding 140 mg/dL. Ideally, though, Levels recommends keeping post-meal glucose levels under 110 mg/dL and the rise from pre-meal levels below 30 mg/dL.

Want to know your specific blood sugar levels? Consider wearing a continuous glucose monitor from Levels.

Simple Tips to Help Manage Blood Sugar Levels

Before we dive into breakfast foods that spike blood sugar, below are five tips to help you manage your blood sugar.

Don’t skip breakfast.

Skipping breakfast can do more harm than good for your blood sugar levels. When you skip breakfast, you’re running on cortisol. Cortisol, our stress hormone, will cause elevated blood sugar through lunch (and potentially, dinner). The goal is to honor your hunger, but consider whether you’re intentionally suppressing your appetite in the morning. If you wake up and aren’t hungry within 30-60 minutes of waking, consider something easy to digest: the adrenal cocktail or a small bowl of chia pudding with a handful of berries.

Pair carbs with protein and fat.

This will help slow the rate of sugar entering your bloodstream. Adopting a diet that is rich in fiber, high-quality protein, and healthy fats promotes balanced blood sugar levels. Not sure how to build a nourishing plate? Let’s work together! Otherwise, start wearing a continuous glucose monitor to test various food combinations.

Stay hydrated with electrolytes.

Water reduces blood sugar by diluting the amount of sugar in the blood. Aim for filtered water with electrolytes. Not sure how much water to drink? A common recommendation is to drink about half your body weight in ounces of water. For example, if you weigh 150 pounds, you would aim for about 75 ounces of water per day. This amount varies based on individual needs, but it’s a good starting point!

Move your body.

Being physically active also helps to reduce insulin resistance and lower blood sugar. Muscles use up extra blood glucose during exercise, which is why resistance training is so beneficial. However, research shows that anywhere from 10-15 minutes of walking—after a meal—can reduce your glucose spike by upwards of 35%!

Get quality sleep.

Too little sleep causes cortisol to rise, thus causing blood sugar to rise as well. Keep in mind that sleep and glucose have a bi-directional relationship. In one direction, how well or poorly you sleep will directly impact your glucose levels. In the other direction, what your glucose levels are like going into the night will impact your sleep. If we work together, I can tailor your meal plan to meet your glucose needs.

5 Breakfast Foods That Spike Blood Sugar

Without further ado, below are a handful of sneaky breakfast foods that can elevate blood sugar. Keep in mind this isn’t about instilling fear. Rather, it’s about raising awareness so you can make more informed choices. By understanding which foods can spike your blood sugar, you have the power to adjust your meals and keep your energy steady throughout the day. It’s all about taking small, proactive steps toward better blood sugar balance and overall health!

1. Non-Fat Yogurt

It’s time for breakfast. You quickly throw together a bowl of low-fat yogurt, topped with banana. On the side, you sip a cup of coffee with oat milk. This breakfast has virtually zero healthy fats, minimal fiber, little protein, and is high in carbohydrates! Unfortunately, you’re sending your blood sugar soaring. With the 90’s low-fat era behind us, full-fat—for many reasons—is where it’s at. If you tolerate it, Greek yogurt or cottage cheese are excellent sources of protein.

2. Plant-Based Milks

Stroll the plant-based milk aisle, and you’ll find that most contain added sugar and are low in protein and fat. If you prefer alternative milk, choose a no-sugar-added variety. I don’t normally buy oat milk, as it’s loaded with refined carbs (spiking blood sugar). My favorite plant-based milks are flax milk, unsweetened vanilla almond milk, and unsweetened coconut milk.

3. Juice

Fruits are rich in energy, nutrients, and antioxidants, but all fruit contains fructose—a form of sugar. And when fruits are processed down to fruit juices, a majority of their nutrients, including fiber, are stripped. What’s left? Sugar. However, when eaten whole—and paired with fat and protein—fruits’ natural sugars take longer to digest, minimizing a spike in blood glucose. Fruit juices, on the other hand, are quite problematic for blood sugar! Instead of juicing, consider making a smoothie. Make it well-balanced: add protein (protein powder, hemp seeds, Greek yogurt, etc.), greens, and a source or two of healthy fats.

See here for a list of 10 fruits that balance blood sugar.

4. Cereal and Granola

By now, we know that cereals with marshmallows or artificial colors are obvious sugar bombs. That said, even healthy-seeming cereals (and granola) can spike your blood sugar. This, for example, is a delicious granola option, but even a mere 1/2 cup boasts 12 grams of sugar. Downing a bowl of cereal or granola for breakfast—doused in oat milk and topped with fruit—is an easy way to spike blood sugar. Instead, opt for a lower-sugar, high-protein cereal or granola. My favorites are Farm Girl, Lovebird, Three Wishes, Purely Elizabeth, and NuTrail. When making your breakfast bowl, add a variety of high-fiber/high-fat toppings like shredded coconut, chia seeds, hemp seeds, pumpkin seeds, and walnuts. All of these additions aid in satiety and help balance blood sugar.

5. Toast

Toast can be a part of a perfectly balanced breakfast. However, not all bread is created equal. Ultimately, this comes down to what type of bread you’re eating and what you’re eating it with. For example, this is a popular, organic whole-grain bread. But if you look at the nutrition label, each slice contains 5 grams of sugar. By the time you’ve made your peanut butter toast with sliced banana, you’re consuming over 25 grams of sugar. To make this same breakfast more blood sugar-friendly, opt for sprouted grain bread with peanut butter topped with hemp seeds, cinnamon, and chia seeds. On the side, enjoy scrambled eggs or no-sugar-added breakfast sausage.

Does coffee spike blood sugar?

Coffee itself doesn’t significantly spike blood sugar for most people, but it can have an indirect effect. For context, caffeine can trigger the release of cortisol (our stress hormone), which may increase blood sugar levels temporarily. Additionally, the way you prepare your coffee matters—adding sugar, syrups, or high-fat creamers can contribute to a blood sugar spike. However, high-quality coffee with a small amount of half-and-half, unsweetened almond/coconut milk, or sugar alternative (like a few drops of monk fruit), is less likely to have an impact on blood glucose levels. Additionally, adding a scoop of collagen peptides (for protein) helps too!

If you’re unsure how coffee affects your blood sugar, monitor it with a continuous glucose monitor.

Does gluten impact blood sugar?

Gluten itself doesn’t directly impact blood sugar, but foods containing gluten—like refined carbs—can cause blood sugar spikes. Gluten-free options can also affect blood sugar if they’re high in starch or sugar. That said, organic whole grains contain a multitude of benefits. At any rate, it’s important to be mindful of how grains affect your blood sugar levels. Wearing a continuous glucose monitor, I’ve tested various types of bread to see how my blood glucose reacts, and my body typically maintains stable blood sugar with sourdough bread and sprouted grains, so long as I pair the bread with adequate protein (20+ grams), healthy fats, and fiber.

Smart Breakfast Choices for Stable Blood Sugar

To bring this full circle, while certain breakfast foods can spike your blood sugar, there are plenty of delicious and blood sugar-friendly alternatives. Opting for protein-rich options—like eggs, smoked salmon, or a tofu scramble— can help stabilize your glucose levels and keep you feeling full longer. For quick (yet balanced) breakfasts, opt for chia pudding, cottage cheese, or a protein-forward smoothie. By having a nutritious breakfast, you’ll reap the benefits of steady energy throughout the morning and fewer sugar cravings throughout the day.

Images courtesy of Unsplash. This article contains affiliate links. Thank you for supporting Wellness with Edie. This article is for informational purposes only. It is not, nor is it intended to be, a substitute for professional medical advice, diagnosis, or treatment and we recommend that you always consult with your healthcare provider.