3 ‘Healthy’ Foods That Spike Blood Sugar More Than Chocolate Cake and How to Make Them Better

Many people associate blood sugar spikes with visually “unhealthy” foods like chocolate, cake, or pastries, often limiting their intake. However, some foods that appear healthy can raise blood sugar just as rapidly — or even more — than sweets.

Dr Alessia Roehnelt, an endocrinologist based in New Jersey, highlights three such foods and offers tips to make them healthier. For context, a chocolate typically raises blood sugar by 38–45, which is considered low to moderate, while these “healthy” foods can spike it into the 60s–90s.

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1. Instant Oatmeal Packets

Oats are often a go-to healthy breakfast, but instant oatmeal packets are highly processed and can trigger a blood sugar spike of 79–83.

Tip to reduce the spike: Dr Roehnelt suggests preparing instant oats with milk instead of water, adding fat and protein to slow down the rise in blood sugar.

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2. Oatmilk Latte

Oatmilk has become a popular dairy alternative, especially in lattes, but it has a high glycemic index because it is enzymatically broken down, meaning it raises blood sugar quickly. Combined with sweeteners, a latte made with oatmilk can spike sugar levels to 65–75 (moderate to high).

Tip to make it healthier: Replace oatmilk with almond milk to lower the glycemic impact.

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3. Acai Bowl

Acai bowls, topped with fruits and granola, look nutritious but can cause a blood sugar spike of 70–90, making them one of the highest among breakfast options. The high fruit-to-protein ratio, along with juices or granola, drives the spike.

Tip to reduce blood sugar impact: Add a scoop of yogurt or some nuts to balance the meal with protein and healthy fats.

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Why it matters: Regularly starting your day with these high-glycemic foods can trigger rapid blood sugar spikes followed by crashes, leaving you feeling tired and lethargic throughout the day.

By making small adjustments, such as combining carbs with protein or healthy fats, you can enjoy these foods while maintaining more stable blood sugar levels.