Most adults with diabetes need about 0.8 grams of protein per kilogram of body weight per day, the same baseline recommendation as the general population. For a 180-pound person, that works out to roughly 65 grams of protein daily. But the right amount for you depends on your age, kidney health, whether you’re pregnant, and your weight management goals.
The Standard Recommendation
The general guideline of 0.8 grams per kilogram of body weight applies to most people with diabetes who have healthy kidneys. To calculate your target, divide your weight in pounds by 2.2 to get kilograms, then multiply by 0.8. A 150-pound person needs about 55 grams per day, while someone weighing 200 pounds would aim for around 73 grams.
This translates to protein making up roughly 15 to 20 percent of your total daily calories. A 4-ounce chicken breast has about 35 grams of protein, a cup of Greek yogurt around 15 to 20 grams, and a large egg about 6 grams, so hitting these targets through whole foods is straightforward for most people.
Why Protein Matters for Blood Sugar
Protein has a much smaller effect on blood sugar than carbohydrates do. It doesn’t cause the same rapid spike after eating, and it slows digestion when paired with carbs, which can help smooth out your post-meal glucose curve. Plant-based proteins like soy and wheat tend to trigger a lower insulin response after meals compared to whey protein, which may be worth considering if you’re working to manage insulin levels.
For people with type 1 diabetes, high-protein meals (especially those also high in fat) can create a delayed blood sugar rise 3 to 6 hours after eating. This sometimes catches people off guard because the initial post-meal reading looks fine. Some people address this by splitting their mealtime insulin dose, giving part before eating and part 1.5 to 2 hours later. If you notice unexplained late rises after protein-heavy meals, it’s a pattern worth tracking.
Higher Protein Needs for Older Adults
If you’re over 65 and living with diabetes, you likely need more protein than the standard recommendation. Muscle loss accelerates with age, and diabetes compounds the problem by affecting how your body uses protein for muscle repair. Current nutrition research recommends older adults with diabetes aim for 1.0 to 1.2 grams per kilogram per day to maintain muscle mass and strength. For a 160-pound person, that’s 73 to 87 grams daily, a meaningful bump over the baseline 58 grams.
Spreading protein evenly across meals matters too. Your body can only use so much protein for muscle building at one time, so eating 30 grams at breakfast, lunch, and dinner is more effective than eating 10 grams at breakfast and 80 grams at dinner. If reaching these targets through food alone is difficult, supplements containing branched-chain amino acids can help, though there’s some evidence linking those amino acids to insulin resistance, so it’s worth discussing with your care team.
When Kidney Disease Changes the Equation
Kidney disease is the one situation where protein intake for diabetics requires real caution. High protein intake forces the kidneys to work harder filtering waste products, and kidneys already damaged by diabetes can’t handle the extra load.
The major kidney disease guidelines (KDOQI and KDIGO) recommend capping protein at 0.8 grams per kilogram per day for people with diabetic kidney disease in stages 1 through 4. For more advanced kidney disease, where kidney filtration drops below 30 percent of normal, the same 0.8 g/kg target applies but with closer monitoring. Both guidelines agree that going above 1.3 grams per kilogram per day, or getting more than 20 percent of calories from protein, should be avoided when kidney function is compromised.
If your kidney function is already reduced, dropping to 0.6 grams per kilogram per day may be recommended. That’s a significant restriction, around 44 grams for a 160-pound person, and typically requires guidance from a dietitian to ensure you’re still meeting nutritional needs.
Protein During Gestational Diabetes
Pregnancy increases protein needs regardless of diabetes status, and gestational diabetes doesn’t change that. Most pregnant women need 80 to 100 grams of protein per day to support fetal growth and their own body’s increased demands. That’s considerably more than the standard recommendation and should come from a mix of lean meats, eggs, dairy, legumes, and nuts. Protein also helps stabilize blood sugar between meals during pregnancy, making it a practical tool for managing gestational diabetes alongside carbohydrate counting.
Higher Protein for Weight Loss
If you’re trying to lose weight to improve blood sugar control, bumping protein up to about 25 percent of your daily calories can help with hunger. A large clinical trial (the PREVIEW study) compared diets with 25 percent of calories from protein against diets with 15 percent and found that the higher-protein approach suppressed hunger more effectively after initial weight loss. For someone eating 1,800 calories a day, 25 percent from protein means about 112 grams daily.
This approach works because protein is the most satiating macronutrient. It keeps you feeling full longer than the same number of calories from carbohydrates or fat. If you’re increasing protein to manage appetite and weight, just be sure your kidneys are functioning normally before making a significant jump.
Choosing Your Protein Sources
The type of protein you eat matters nearly as much as the amount. Diets high in red meat are associated with increased cardiovascular risk, which is already elevated in people with diabetes. Swapping some red meat for plant-based options can lower that risk.
Soy protein is particularly well-studied. When consumed with its naturally occurring isoflavones (as in tofu, tempeh, and edamame rather than isolated soy protein powder), it produces about a 3 percent greater reduction in total and LDL cholesterol compared to animal protein. That’s a modest but meaningful benefit for people managing both diabetes and cholesterol. Fish, poultry, eggs, legumes, and nuts are all solid choices that give you protein without the cardiovascular downsides of frequent red meat consumption.
A practical daily menu hitting 70 to 80 grams of protein might look like two eggs at breakfast (12 grams), a cup of lentil soup at lunch (18 grams), a handful of almonds as a snack (6 grams), and a 5-ounce salmon fillet at dinner (35 grams). Building meals around protein sources with fiber and healthy fats gives you the best combination for blood sugar stability.