10 Things That Can Spike Your Blood Sugar


When you first found out you had diabetes,  you tested your blood sugar often to understand how food, activity, stress and illness could affect your blood sugar levels. By now, you’ve got it figured out for the most part, right?

But suddenly — BAM! Something makes your blood sugar zoom up. You try to adjust it with food or activity or insulin, and it dips low. You’re on that rollercoaster no one with diabetes wants to ride.

Knowledge is power! Look out for these surprising triggers that can send your blood sugar soaring:

1 – Heat

Extreme heat (in baths or hot tubs) can cause blood vessels to dilate, which makes insulin absorb more quickly and could lead to low blood sugar.

2 – Artificial sweeteners

More research needs to be done, but some studies show that they can raise blood sugar.

3 – Coffee

Even without sweetener, coffee can raise blood sugar, due to the caffeine. Some people are extra-sensitive to caffeine.

4 – Losing sleep

Just one night of poor sleep can make your body use insulin less efficiently.

5 – Skipping breakfast

Going without that morning meal can increase blood sugar after both lunch and dinner.

6 – Time of day

The later it gets, the harder blood sugar can be to control.

7 – The “Dawn Phenomenon”

People have a surge in hormones early in the morning, whether they have diabetes or not. For people with diabetes, this means blood sugar can spike.

8 – Dehydration

Less water in your body means a higher blood sugar concentration.

9 – Nasal sprays

Some sprays have chemicals that trigger your liver to release more sugar into your bloodstream.

10 – Gum disease

It’s both a complication of diabetes and a cause for blood sugar spiking.

Watch out for other triggers that can make your blood sugar spike. If an activity, food or situation is new, be sure to check your blood sugar levels before and after to see how you respond.