What Happens If I Eat Canned Blueberries in Light Syrup Every Day?

Each 100g serving delivers 17.4g of sugar (35% DV) with only 2.6g of fiber to slow absorption. The light syrup adds free sugars that enter the bloodstream rapidly, causing a quick glucose rise followed by an insulin surge. Over days, this pattern can increase insulin resistance, especially if eaten alone or in large portions.

At 370 kcal per 100g, this is nearly double the calorie density of fresh blueberries (about 57 kcal/100g). The syrup adds ~13g of sugar per serving, translating to ~52 extra calories. Eating this daily without adjusting other meals can lead to a surplus of ~364 kcal per week, which may result in ~0.5 kg of fat gain per month.

The 2.6g of fiber per 100g (9% DV) supports stool bulk and feeds beneficial gut bacteria. Unlike fresh berries, the canning process softens the fiber, making it easier to digest. Regular consumption can help prevent constipation, but the high sugar content may offset this benefit by promoting water retention in the gut.

Each 100g provides 0.053mg copper (6% DV) and 0.43mg iron (2% DV). Copper supports red blood cell formation and iron transport, while iron helps carry oxygen. However, the syrup's sugar can inhibit copper absorption by binding to it in the gut, reducing the actual benefit. You'd need to eat over 1.5kg daily to meet copper needs, which is unrealistic.