Blood Sugar Readings from Smart Watches and Smart Rings are Unreliable

On February 21st, 2024, the FDA issued a new warning to the public regarding the use of smartwatches and smart rings for noninvasive blood sugar readings. Because this technology doesn't pierce the skin, the readings are unreliable. Non-invasive technologies, like smartwatches and rings, attempt to estimate glucose levels through indirect means like sweat or skin measurement. These methods struggle with consistency and accuracy because sweat or skin do not reflect blood glucose levels as accurately.

This poses a risk to diabetics using insulin. An inaccurate dose based on unreliable readings can lead to severe low blood sugar levels, potentially requiring assistance.

Accurate blood sugar readings require piercing the skin because they rely on direct access to blood or interstitial fluid, which contains glucose levels. Blood glucose levels are the most accurate measure of sugar in the body because the bloodstream directly reflects the glucose levels present.

Standalone smartwatches and rings differ from FDA-approved apps that receive data from continuous glucose monitors (CGMs), which pierce the skin and transmit data to blood glucose apps.

Anyone who has encountered a problem with inaccurate blood sugar readings using these devices is encouraged to report the issue through the FDA MedWatch Voluntary Reporting Form.

Ready to find out more?

As a Diabetes Educator and Nutritionist I help my patients cope with managing their diabetes - whether it's diet, nutrition, supplements, blood sugar, or pump therapy.

Please reach out and contact me if you need support, I truly understand. I live it every day. 

You might be interested in...

Yogurt with berries - one of the Best Foods For Fighting Inflammation
Best Foods For Fighting Inflammation

Ok, if you haven’t heard it by now, here’s goes.…

Read More
Mediterranean diet advantages
Mediterranean Diet Advantages

I have mentioned this in previous posts and I think…

Read More
Are Avocados A Good Food To Include in Your Diet
Are Avocados A Good Food To Include in Your Diet

Avocados Do Not Cause Weight Gain Hi, this is Elizabeth…

Read More

Leave a Comment

This site uses Akismet to reduce spam. Learn how your comment data is processed.