Blog
The science of food and glucose, explained simply.
Does Watermelon Spike Your Blood Sugar?
Watermelon has a high glycemic index (GI 76) but a low glycemic load (GL 5) because it is 92% water. A typical serving causes only a small blood sugar spike despite the high GI number.
Does White Bread Spike Your Blood Sugar?
White bread has a high glycemic index (GI 71–77) — it spikes blood sugar as fast as pure glucose. Sourdough, whole grain, and rye bread are significantly better alternatives.
Does White Rice Spike Your Blood Sugar?
White rice has a high glycemic index (GI 72–83) and is one of the most significant blood sugar spiking foods worldwide. A cup delivers 45g of rapidly-digested starch.
Does Whole Wheat Spike Your Blood Sugar?
Whole wheat bread (GI 74) spikes blood sugar almost as much as white bread (GI 75). The difference is only 1-3 GI points. Truly intact whole grains perform much better.
Does Wine Spike Your Blood Sugar?
Dry wine (red and white) has a glycemic index near 0 and contains only 1–4g of residual sugar per glass. It is the lowest-glycemic alcoholic drink alongside spirits.
Does Yogurt Spike Your Blood Sugar?
Plain yogurt has a low glycemic index (GI 14–36) and causes a small blood sugar spike. But flavored yogurt can contain 20–30g of added sugar, spiking as much as a candy bar.
Why Liquid Sugar Causes the Worst Glucose Spikes
Liquid sugar causes the worst glucose spikes because it bypasses chewing, stomach breakdown, and fiber barriers — delivering sugar to the bloodstream in under 5 minutes.
Why Eating Protein Before Carbs Reduces Blood Sugar Spikes
Eating protein before carbohydrates reduces blood sugar spikes by 30 to 40 percent by triggering GLP-1 and CCK hormones that slow gastric emptying.
Glycemic Load vs. Glycemic Index: What's the Difference?
Glycemic index measures how fast a food spikes blood sugar per gram of carb. Glycemic load accounts for how much carb you actually eat. Watermelon (GI 76, GL 4) shows why both matter.
What Is Resistant Starch and How Does It Lower Blood Sugar?
Resistant starch passes through the small intestine undigested, feeding gut bacteria instead of spiking blood sugar. Cooling cooked rice, potatoes, and pasta creates resistant starch.