Oxidative stress (OS) and inflammation are critical factors in the development and progression of type 2 diabetes mellitus (T2D) and its complications. Hyperglycemia induces OS and inflammation, which contribute to insulin resistance and β-cell dysfunction. Lifestyle interventions, including a balanced diet rich in antioxidants (e.g., flavonoids, carotenoids, curcumin, gallic acid, and vitamins), regular exercise, and maintaining a healthy weight, can help reduce chronic inflammation and OS, thereby preventing and managing T2D. Anti-diabetic medications such as pioglitazone, metformin, and glucagon-like peptide-1 (GLP-1) agonists may also have anti-inflammatory effects. OS and inflammation are closely linked to the damage of target organs in diabetes, including the kidneys, retina, liver, heart, and brain. In diabetic kidney disease, hyperglycemia triggers pathways leading to chronic inflammation and impaired kidney function. In retinopathy, hyperglycemia causes microvascular damage and inflammation, leading to retinal damage. In liver disease, chronic inflammation and OS impair liver function, leading to fibrosis and cirrhosis. In heart disease, chronic inflammation and OS contribute to atherosclerosis and atrial fibrillation. In brain damage, chronic inflammation is linked to neurological damage and mental health disorders. The interplay between inflammation, OS, and insulin resistance creates a vicious cycle that exacerbates diabetes-related complications. Lifestyle changes, such as a Mediterranean diet, regular physical activity, and weight management, are effective in reducing inflammation and OS. Dietary antioxidants, including flavonoids, carotenoids, and curcumin, have shown potential in reducing OS and inflammation. Clinical trials suggest that curcumin may improve insulin sensitivity and reduce HbA1c in T2D patients. Green tea, rich in catechins, may also have anti-inflammatory and antioxidant effects. Vitamins C, E, and minerals like zinc and magnesium may play a role in managing T2D, although evidence is inconsistent. Anti-diabetic drugs such as pioglitazone and SGLT-2 inhibitors have shown anti-inflammatory effects, reducing inflammatory markers and improving glycemic control. However, further research, including randomized controlled trials, is needed to fully understand the efficacy of these interventions in managing T2D and its complications. Overall, a comprehensive approach combining lifestyle modifications, dietary antioxidants, and targeted therapies is essential for preventing and managing diabetes-related complications.Oxidative stress (OS) and inflammation are critical factors in the development and progression of type 2 diabetes mellitus (T2D) and its complications. Hyperglycemia induces OS and inflammation, which contribute to insulin resistance and β-cell dysfunction. Lifestyle interventions, including a balanced diet rich in antioxidants (e.g., flavonoids, carotenoids, curcumin, gallic acid, and vitamins), regular exercise, and maintaining a healthy weight, can help reduce chronic inflammation and OS, thereby preventing and managing T2D. Anti-diabetic medications such as pioglitazone, metformin, and glucagon-like peptide-1 (GLP-1) agonists may also have anti-inflammatory effects. OS and inflammation are closely linked to the damage of target organs in diabetes, including the kidneys, retina, liver, heart, and brain. In diabetic kidney disease, hyperglycemia triggers pathways leading to chronic inflammation and impaired kidney function. In retinopathy, hyperglycemia causes microvascular damage and inflammation, leading to retinal damage. In liver disease, chronic inflammation and OS impair liver function, leading to fibrosis and cirrhosis. In heart disease, chronic inflammation and OS contribute to atherosclerosis and atrial fibrillation. In brain damage, chronic inflammation is linked to neurological damage and mental health disorders. The interplay between inflammation, OS, and insulin resistance creates a vicious cycle that exacerbates diabetes-related complications. Lifestyle changes, such as a Mediterranean diet, regular physical activity, and weight management, are effective in reducing inflammation and OS. Dietary antioxidants, including flavonoids, carotenoids, and curcumin, have shown potential in reducing OS and inflammation. Clinical trials suggest that curcumin may improve insulin sensitivity and reduce HbA1c in T2D patients. Green tea, rich in catechins, may also have anti-inflammatory and antioxidant effects. Vitamins C, E, and minerals like zinc and magnesium may play a role in managing T2D, although evidence is inconsistent. Anti-diabetic drugs such as pioglitazone and SGLT-2 inhibitors have shown anti-inflammatory effects, reducing inflammatory markers and improving glycemic control. However, further research, including randomized controlled trials, is needed to fully understand the efficacy of these interventions in managing T2D and its complications. Overall, a comprehensive approach combining lifestyle modifications, dietary antioxidants, and targeted therapies is essential for preventing and managing diabetes-related complications.