Peanut Butter: How Does It Affect Blood Sugar?
Peanut butter is considered a low-glycemic-index food, meaning it has a minimal impact on blood sugar levels. This is due to its low carbohydrate content and the presence of healthy fats and protein, which slow down digestion and prevent sharp spikes in blood sugar. This makes it a popular choice among both diabetics and healthy individuals as a nutritious snack.
A tablespoon of peanut butter contains about 3 to 4 grams of carbohydrates and has a glycemic index of approximately 14, which is very low compared to many other foods. A 2018 study involving 16 healthy adults showed that consuming two tablespoons of peanut butter along with white bread and apple juice led to a noticeable reduction in blood sugar spikes compared to consuming bread and juice alone. Researchers attributed this to the fats and proteins in peanut butter slowing the absorption of carbohydrates.
Another study indicated that regular consumption of peanut butter may reduce the risk of developing type 2 diabetes by up to 20 percent, particularly when used as a substitute for high-sugar snacks.
However, experts caution that these benefits depend on the quality of the peanut butter and its lack of added sugars and hydrogenated oils, which could turn it into an unhealthy food.
• Choose varieties without added sugar, as some brands contain added sugars that can affect blood sugar levels and increase calorie intake.
• Consuming peanut butter at breakfast can help control blood sugar throughout the day, even after a high-carbohydrate lunch.
• Pay attention to portion sizes, as overconsumption can increase calories and fat intake, potentially negatively affecting weight and heart health.
• Store it in a cool, dry place and stir well before use, as natural oils may separate over time.
Experts concluded that including peanut butter in a balanced diet can be beneficial for both diabetics and healthy individuals, provided that quality and quantity are taken into account. They also recommended diversifying sources of protein and healthy fats rather than relying on a single source.
