Dark chocolate with different levels of cacao and sweeteners was tested to see its impact on blood sugar levels, with surprising results.
Levels offers a CGM tool to monitor blood sugar, allowing people without diabetes to use it through a research study or a prescription, with CGMs sold at cost and Levels making money from a one-time membership fee.
Dark chocolate with 72% cacao and high sugar content caused an unhealthy blood sugar response, earning a Levels score of 4 and elevating blood sugar by 39 points.
Dark chocolate with higher fat and lower sugar content causes a gentler rise in blood sugar, with the 92% cacao chocolate being the best option for blood sugar.
The 100% cacao chocolate had a moderate blood sugar spike and tasted horrible, but it is high in antioxidants and minerals, despite having more carbohydrate grams and mismatched nutrition facts.
The calorie count on dark chocolate labels may not be accurate due to inconsistencies in nutrition labels and the oversimplification of calorie counting, resulting in a significant difference in calorie count.
Dark chocolate sweetened with sugar substitutes had a moderate impact on blood sugar levels, but it is unclear whether the suppressed response was due to the sweeteners or the added fiber, while the 92% cacao chocolate is the best for blood sugar stability and has a good level of cacao and a touch of sweetness, making it the winner, but not recommended for snacking or weight loss goals.
How dark chocolate affects your blood sugar levels may vary depending on your body's insulin sensitivity, so it's best to monitor your levels using a blood glucose monitor or a CGM.
This article is a summary of a YouTube video "Blood Sugar vs. Dark Chocolate: I Ran the Tests. Which Chocolate is Best?" by Dr. Becky Gillaspy