The Baseline for Most Adults
For the average adult who is largely sedentary—perhaps working a desk job with minimal weekly exercise—the long-standing recommendation is a good starting point. This is typically around 0.8 grams of protein per kilogram of body weight per day. For a 70
kg individual, that’s about 56 grams of protein. It is important to note, however, that some recent analysis suggests this number is a minimum to prevent deficiency, not what is optimal. A recent large-scale review published in mid-2026 has sparked debate, suggesting that for sedentary individuals, consuming significantly more protein than needed may have long-term metabolic trade-offs. This makes hitting the right amount, without overdoing it, particularly important.
For the Fitness Enthusiast
If you are a regularly active individual—someone who engages in moderate exercise like jogging, cycling, or gym workouts three to five times a week—your protein needs increase to support muscle repair and growth. The scientific consensus for this group has settled in a higher range. Experts recommend an intake of approximately 1.2 to 1.7 grams of protein per kilogram of body weight. For that same 70 kg person, this means a significant jump to between 84 and 119 grams daily. This additional protein helps repair the microscopic muscle tears that occur during exercise, which is how you build strength and endurance over time.
Fueling Peak Performance
For competitive athletes and those undergoing intense training, protein is a critical component for performance and recovery. These individuals push their bodies to the limit, requiring even more protein to repair tissue and build lean mass. The International Society of Sports Nutrition and other bodies recommend a daily intake of 1.4 to 2.2 grams of protein per kilogram of body weight. In some cases, such as during periods of intense muscle building or severe training, this can go even higher. This level of intake ensures a constant supply of amino acids, the building blocks of protein, to fuel demanding physical activity and optimize training adaptations.
Sustaining Strength with Age
One of the most significant shifts in recent protein research relates to older adults. It is now widely understood that as we age, our bodies become less efficient at using protein, a phenomenon known as anabolic resistance. To combat age-related muscle loss, or sarcopenia, experts now strongly recommend a higher protein intake for those over 65. The current recommendation is 1.0 to 1.2 grams of protein per kilogram of body weight, and even higher for those with chronic illnesses. This is substantially more than the basic RDA and is similar to the needs of a younger active adult, highlighting the importance of protein for maintaining mobility, strength, and independence in later life.
When You Eat Matters, Too
The latest reviews are not just about how much protein you eat, but also when you eat it. The emerging consensus is that spreading your protein intake evenly throughout the day is more effective for muscle synthesis than consuming the bulk of it in one large evening meal. Studies show that aiming for 20 to 40 grams of high-quality protein per meal can maximize your body's ability to build and repair muscle. This approach moves away from the old idea of a narrow post-workout “anabolic window” and towards a more consistent, day-long strategy. For many people, this means consciously adding more protein to their breakfast instead of saving it all for dinner.
