A healthy glucose level is essential for overall well-being. According to the Mayo Clinic, a fasting blood sugar level less than 100 mg/dL (5.6 mmol/L) is considered normal, while a level from 100 to 125 mg/dL (5.6 to 6.9 mmol/L) is indicative of prediabetes. The Cleveland Clinic also states that a healthy fasting blood glucose level for someone without diabetes is 70 to 99 mg/dL (3.9 to 5.5 mmol/L) . The World Health Organization recommends lifestyle changes and monitoring glycemia when fasting blood glucose is between 100 to 125 mg/dL (5.6 to 6.9 mmol/L), and a diagnosis of diabetes is made when the fasting blood glucose is 126 mg/dL (7 mmol/L) or higher on two separate tests. The CDC also provides similar guidelines, indicating that a fasting blood sugar level of 100 to 125 mg/dL indicates prediabetes, and 126 mg/dL or higher indicates diabetes.
In summary, a healthy fasting blood glucose level for someone without diabetes is generally considered to be between 70 and 99 mg/dL (3.9 to 5.5 mmol/L). Levels between 100 and 125 mg/dL (5.6 to 6.9 mmol/L) are indicative of prediabetes, while levels of 126 mg/dL (7 mmol/L) or higher on two separate tests indicate diabetes. Regular monitoring and consultation with a healthcare provider are important for maintaining healthy blood glucose levels.
