A recent analysis suggests higher red meat consumption may be associated with increased risk of type 2 diabetes, while substituting other protein sources could lower that risk.
Diabetes is common in the U.S.; the Centers for Disease Control and Prevention (CDC) reported about 40.1 million people had diabetes in 2023 and 115.2 million had prediabetes. About 90% to 95% of those with diabetes have type 2 diabetes. Type 2 diabetes can often be prevented or delayed with lifestyle changes including diet, exercise, and weight management.
Study findings
A study published in the British Journal of Nutrition used data from the National Health and Nutrition Examination Survey (NHANES, 2003–2016) to examine the relationship between red meat intake and diabetes. The analysis included 34,737 adults (average age 45.8), of whom 10.5% had diabetes. Diabetes was defined as a physician diagnosis, fasting plasma glucose ≥126 mg/dL, HbA1c ≥6.5%, or use of antidiabetic medications.
Those with the highest total red meat intake consumed about 5.72 ounces per day. After adjusting for demographics, lifestyle, socioeconomic status, and other dietary habits, higher red meat consumption was associated with greater odds of diabetes. People in the highest red meat intake group had about 49% higher odds of having diabetes compared to those eating the least.
The researchers found that each additional daily serving of total red meat was associated with a 16% increased risk of diabetes. Each additional serving of processed or unprocessed red meat was associated with about a 10% higher risk.
Interpretation and limitations
This study is observational and shows association, not causation. However, experts note these results align with other research, including long-term prospective studies that show dose-response relationships—especially for processed red meat.
What counts as red meat
Red meat generally includes beef, veal, pork, lamb, and game meat. Nutrition and diabetes guidelines have long recommended limiting red meat, choosing leaner cuts, and avoiding processed meats like bacon, ham, and sausages.
Substituting other proteins
The analysis also looked at the effect of replacing red meat with other protein sources. Replacing one serving of red meat per day with plant-based proteins—legumes, nuts or seeds, or soy products—was associated with a 14% reduced risk of diabetes. Substituting dairy, poultry, or whole grains for red meat was associated with an 11%–12% lower risk.
Experts emphasize that plant proteins such as beans, lentils, chickpeas, tofu, and tempeh provide fiber, healthy fats, and compounds that can improve insulin sensitivity and support blood sugar control. They stress that this does not require going vegan; the goal is to shift the balance of the plate toward more plant-based options.
Practical recommendations
Physicians and dietitians advise limiting red meat frequency and portion size. One clinician suggested no more than two servings per week, with a serving about the size of your fist (4–6 ounces), while a preventive cardiology dietitian recommended aiming for no more than one serving per week. If eliminating red meat feels difficult, starting by choosing leaner cuts (sirloin, tenderloin, 90–95% lean ground beef) or reducing frequency can help.
Broader risk factors and lifestyle
Diet is one of several factors that affect diabetes risk. Reducing added sugars and ultra-processed foods, increasing plant-based proteins and whole grains, managing weight, and staying active all help lower risk. Other known risk factors include having overweight or obesity, being age 45 or older, having prediabetes, fatty liver disease, a family history of type 2 diabetes, or a history of gestational diabetes or delivering a baby weighing 9 pounds or more.
Small, sustainable shifts—such as swapping one red meat meal per week for lentils or fish, choosing leaner cuts, and reducing overall frequency—may help lower long-term diabetes risk. Progress comes from consistent, manageable changes rather than perfection.
