For decades, protein guidance has centered on one simple goal: avoid deficiency. The longstanding Recommended Dietary Allowance of about 0.8 grams per kilogram of body weight was designed to prevent malnutrition in a healthy, mostly sedentary adult. It was never meant to represent an optimal target, and a growing body of research suggests that for most adults, especially as they get older, it falls well short of what the body actually benefits from.
The new target
Updated recommendations point to a range of roughly 1.2 to 1.6 grams of protein per kilogram of body weight per day. To put that in real terms, a person weighing 160 pounds (about 73 kilograms) would aim for somewhere between 87 and 116 grams of protein daily, a noticeably higher number than what older guidelines suggested.
Why the shift
The change comes down to muscle. Starting around age 30, adults naturally begin to lose muscle mass, a process called sarcopenia that accelerates with age if left unaddressed. Muscle isn’t just about strength or appearance, it plays a major role in metabolism, balance, mobility, and even immune function. Losing too much of it is linked to higher rates of falls, fractures, and loss of independence later in life.
The minimum protein intake needed to avoid deficiency is simply not the same amount needed to actively support muscle protein synthesis, the process by which your body repairs and builds muscle tissue. Higher protein intake, particularly when combined with resistance exercise, helps counteract age-related muscle loss far more effectively than the bare minimum ever could. This is true for healthy adults in their 30s and 40s, and becomes increasingly important in the 50s, 60s, and beyond.
Spread it out, don’t stack it
One of the more practical findings behind these updated recommendations is that timing matters almost as much as total amount. Your body can only use so much protein for muscle synthesis in a single sitting. Eating the bulk of your daily protein in one large dinner, a common pattern in American eating habits, means a lot of that protein doesn’t get used as efficiently as it could.
Instead, aim to include a meaningful source of protein at every meal. Think 25 to 35 grams at breakfast, lunch, and dinner, rather than 10 grams at breakfast and 70 grams at dinner. This more even distribution gives your body repeated opportunities throughout the day to put that protein to work.
What this looks like on a plate
The goal isn’t protein powder and bars, though those can certainly help fill gaps. A whole foods approach works well and offers other nutritional benefits along the way.
Animal-based options include lean meats like chicken breast, turkey, and lean cuts of beef or pork, along with fish and seafood, which bring the added benefit of omega-3 fatty acids. Eggs are an excellent and affordable source, and dairy products like Greek yogurt, cottage cheese, and milk offer protein alongside calcium, which matters for bone health as we age.
Plant-based options deserve equal attention, both for those who eat less meat and for anyone looking to diversify their meals. Lentils, beans, chickpeas, and soy products like tofu and edamame all provide substantial protein along with fiber, something animal proteins don’t offer. Combining a few plant sources across the day, such as beans with rice or hummus with whole grain bread, helps ensure you’re getting a complete range of amino acids.
A realistic starting point
You don’t need to overhaul every meal overnight. Start by noticing your current pattern. If breakfast is just coffee and toast, adding eggs or Greek yogurt is a simple first step. If lunch is a sandwich with a thin slice of turkey, doubling that portion or adding a side of cottage cheese moves the needle.
As with most nutrition changes, consistency matters more than perfection. Building toward that 1.2 to 1.6 gram per kilogram range over a few weeks, while spreading protein across your meals, is a sustainable way to support muscle health for the long run.
Curious whether your current eating habits are meeting your protein needs? Our team at Horizon Family Medical Group is happy to talk through a plan that fits your lifestyle.