The Baseline for Most Adults
For the average, relatively sedentary adult, the standard recommendation is a modest starting point. Health organisations suggest a minimum of 0.8 grams of protein for every kilogram of body weight. For a person weighing 68 kilograms, this translates
to about 54 grams of protein per day. Think of this as the essential amount needed to maintain basic bodily functions, like supporting your immune system and repairing tissues, rather than the optimal amount for every goal. This is a crucial baseline, but as your lifestyle changes, this number needs to adapt.
For the Moderately Active Individual
If you exercise regularly—perhaps hitting the gym, jogging, or playing a sport a few times a week—your body requires more protein to repair and build muscle tissue. Experts recommend that active individuals increase their intake to a range of 1.1 to 1.5 grams per kilogram of body weight. For that same 68-kilogram person, this would mean aiming for 75 to 102 grams daily. This extra protein helps your muscles recover after a workout, reduces soreness, and ensures your efforts in the gym lead to stronger, healthier muscles.
For Athletes and Strength Trainers
Those engaged in intense physical training, such as serious athletes, bodybuilders, or people training for an endurance event like a marathon, have the highest protein needs. Recommendations for this group typically range from 1.2 to 2.0 grams per kilogram of body weight. This could mean 82 to 136 grams of protein daily for a 68-kilogram athlete. During periods of particularly intense training or when trying to gain muscle, this higher intake is vital for maximising muscle protein synthesis—the process that builds new muscle—and ensuring a speedy recovery between sessions.
For Those Focused on Weight Management
When the goal is weight loss, protein becomes a powerful ally. A higher protein intake can boost metabolism and significantly increase feelings of fullness, which can help reduce overall calorie consumption. It also plays a crucial role in preserving lean muscle mass while you lose fat. For this reason, some experts suggest an intake of up to 2.3 grams per kilogram of body weight can be beneficial during a weight loss phase to ensure that the weight you're shedding is primarily from fat, not muscle.
For Older Adults (Age 65+)
As we age, our bodies become less efficient at using protein, and we naturally start to lose muscle mass in a process called sarcopenia. To combat this, experts advise that older adults increase their protein intake significantly compared to younger, sedentary adults. The recommendation for healthy adults over 65 is typically 1.0 to 1.2 grams of protein per kilogram of body weight. For a 68-kilogram senior, this means consuming 68 to 82 grams daily. This helps preserve muscle strength, supports bone health, and maintains overall function and independence.
