what is a bad glucose level

A bad glucose level depends on whether you are fasting or have recently eaten, and whether you have diabetes or not. Here are general guidelines:

• Fasting Blood Sugar (before eating):

  • Normal: Less than 100 mg/dL
  • Prediabetes: 100–125 mg/dL
  • Diabetes: 126 mg/dL or higher

• Postprandial (2 hours after eating):

  • Normal: Less than 140 mg/dL
  • Prediabetes: 140–199 mg/dL
  • Diabetes: 200 mg/dL or higher

• Random Blood Sugar:

  • Diabetes is typically diagnosed if levels are 200 mg/dL or higher, regardless of when you last ate.

For people with diabetes, target levels may vary, but generally:

• Fasting/Before Meals: 80–130 mg/dL
• 1–2 Hours After Meals: Less than 180 mg/dL

Consistently high glucose levels can lead to complications like nerve damage, kidney disease, and cardiovascular issues. Always consult your healthcare provider for personalized targets.