When your thyroid is too active (hyperthyroidism), it can make it harder for your diabetes medication to control your blood sugar levels. It’s like insulin, the hormone that helps regulate your blood sugar, doesn’t work as well. This can cause your blood sugar to go up because your body becomes less responsive to the insulin.
On the other hand, when your thyroid is not active enough (hypothyroidism), it can also affect your blood sugar levels. You may notice that your blood sugar levels are higher after meals because your body has trouble processing sugar properly. The insulin your body produces may also be reduced, making it more challenging to manage your blood sugar.
An underactive thyroid slows down digestion, causing delays in absorbing sugar from food. This delay can lead to higher blood sugar levels after you eat.
If you have type 1 diabetes, an overactive thyroid can make controlling your blood sugar levels harder. The increased insulin resistance and sugar production can interfere with your diabetes management, so you may need to adjust your insulin doses and medications accordingly.
For those with type 2 diabetes, having an underactive thyroid can make blood sugar management more difficult. Processing sugar and reduced insulin production can worsen insulin resistance, making checking your blood sugar levels harder. It may help if you change your medications and lifestyle to achieve better control.
The takeaway for people with diabetes and thyroid disease, an overactive thyroid (hyperthyroidism) and an underactive thyroid (hypothyroidism) can affect how your diabetes medication works and your blood sugar levels. With an overactive thyroid, your blood sugar might go up because insulin also doesn’t work. With an underactive thyroid, your blood sugar may be higher after meals, and it can be harder to manage overall blood sugar. It’s important to work closely with your healthcare team to manage both your diabetes and thyroid conditions effectively and keep your blood sugar stable.
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