Why does my blood sugar spike up to 200 when my A1C is 5.4?
A hemoglobin A1C (HbA1c) level of 5.4% is generally considered within the normal range and indicates good long-term blood sugar control, reflecting an average blood sugar level over the past 2-3 months. However, experiencing blood sugar spikes up to 200 mg/dL can still occur due to various reasons. Here are some possible explanations: Dietary Factors : High Carbohydrate Meals : Consuming meals high in carbohydrates or sugars can cause temporary spikes in blood sugar levels, even if overall control is good. Glycemic Index : Foods with a high glycemic index can cause rapid increases in blood sugar. Insulin Sensitivity : Variability : Insulin sensitivity can vary throughout the day, and certain times (e.g., post-meal) may lead to higher spikes. Dawn Phenomenon : Some people experience higher blood sugar levels in the early morning due to natural hormonal changes. Physical Activity : Inactivity : Lack of physical activity, especially after meals, can result in higher blood sugar levels. In...