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10 Everyday Foods That Can Spike Your Blood Sugar Without You Realizing

When we think of foods that raise blood sugar, we often picture desserts, soda, or candy. But the truth is, many common foods—even some labeled “healthy”—can cause unexpected spikes. Whether you’re managing diabetes, watching your energy levels, or just trying to eat more mindfully, it’s helpful to know which everyday items can throw your blood sugar out of balance. Here are 10 surprising culprits that might be hiding in your daily routine.

1. Instant Oatmeal

Instant oatmeal.
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It sounds healthy—and it can be—but many flavored instant oatmeals are packed with added sugars. That quick breakfast convenience may come with a blood sugar rollercoaster, especially when you skip adding protein or fat to slow digestion.

2. Granola Bars

Granola bar.
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Granola bars often wear a health halo, but look closely. Many are more like candy bars in disguise, loaded with high-glycemic sweeteners like brown rice syrup or honey, which can spike blood sugar quickly.

3. Fruit Smoothies

Woman licking finger; making smoothie. Shake.
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A smoothie made with just fruit and juice can send your blood sugar soaring. Even though it’s “natural,” blending breaks down fiber, and drinking large portions fast can overwhelm your system—especially without protein or healthy fats.

4. Flavored Yogurt

flavored yogurt.
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Yogurt is rich in protein and probiotics, but many fruit-flavored versions contain more sugar than a soda. Opt for plain yogurt and add your own berries or cinnamon for better blood sugar control.

5. White Rice

Making sushi rice.
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White rice is digested quickly, leading to rapid blood sugar spikes—especially when eaten alone. Try pairing it with fiber-rich vegetables and lean protein to help balance your meal, or consider switching to brown rice or quinoa.

6. Coffee Drinks with Syrups

flavored coffee syrups.
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Your morning latte might be a sugar bomb in disguise. Flavored syrups and sweetened creamers can turn black coffee into a dessert-level treat, sending blood sugar levels skyrocketing—especially on an empty stomach.

7. Salad Dressings

Ranch dressing.
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Surprise! Many bottled dressings—especially fat-free or “light” ones—are loaded with sugar to make up for lost flavor. This can quietly sabotage your blood sugar, even if the salad underneath is healthy.

8. Dried Fruit

Dried fruit.
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Dried fruit may seem like a nutritious snack, but without water content to slow digestion, it hits your bloodstream fast. Just a small handful of raisins or dried mango can contain the sugar equivalent of a candy bar.

9. White Bread and Crackers

white bread.
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Refined grains like white bread, saltines, and many snack crackers break down quickly into sugar. Without fiber to slow digestion, your body gets a quick sugar rush—and the crash that follows.

10. Frozen “Healthy” Meals

FRozen meals.
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Many frozen meals labeled “lean” or “low-fat” are carb-heavy and light on protein or fiber. They might save time, but the combination of refined starches and added sugars can spike blood sugar more than you’d think.

Conclusion

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Understanding how everyday foods affect your blood sugar can help you make smarter choices without giving up the things you love. You don’t have to cut these items out entirely—just pair them wisely with fiber, protein, and healthy fats to slow absorption. Awareness is key to feeling your best and maintaining balanced energy throughout the day.

Are You Lactose Intolerant? Here’s How to Tell (And What to Do About It)

stomach ache. milk.
KomootP via Shutterstock.

If you’ve ever had a scoop of ice cream, a cheesy pizza, or a creamy latte, only to feel bloated, gassy, or just plain awful afterward, you might have wondered—am I lactose intolerant?

Lactose intolerance is one of those sneaky conditions that can show up suddenly or gradually over time, and it’s more common than you might think. Some people have had it their whole lives and just assumed digestive discomfort was “normal,” while others develop it later and are left wondering why dairy suddenly feels like an attack on their stomach.

READ: Are You Lactose Intolerant? Here’s How to Tell (And What to Do About It)

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Author

  • Dede Wilson Headshot Circle

    Dédé Wilson is a journalist with over 17 cookbooks to her name and is the co-founder and managing partner of the digital media partnership Shift Works Partners LLC, currently publishing through two online media brands, FODMAP Everyday® and The Queen Zone.

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