Key Points
Eating the right amount of protein supports your body’s basic functions, muscle health, and overall well-being.Most people already get enough protein, but your exact needs depend on factors like age, activity, and health.To calculate your protein needs, divide your weight in pounds by 2.205, then multiply by 0.8 for a daily minimum.

If it feels like protein is everywhere lately, you’re not alone. On social media, creators have been adding cottage cheese and Greek yogurt to numerous dishes, while cafes have started offering protein lattes. The trend also has merit: Protein is a crucial nutrient that’s needed for basic life functions. But do you really need to fixate on protein—and how much protein do you really need? 

Most Americans are already getting enough protein, according to experts at the USDA. What’s more, the exact protein requirements for every person can vary widely, so there isn’t a one-size-fits-all answer. To learn more, we spoke to dietitians about determining your personalized protein needs, along with signs you should increase your intake.

What Is Protein?

“Protein is an essential macronutrient,” says Isabel Balady, RDN, CDN, registered dietitian at Northwell’s Lenox Hill Hospital. This means the body needs large amounts of protein (along with carbs and fats) every day to function.

In the body, protein is the major building block of all tissues and the primary component of muscle, according to Balady. It’s also needed to form all types of cells, she says. Furthermore, protein is necessary for every biological function. Examples include the regulation of organ systems, immunity, and bone and joint health, as well as metabolism, hormonal function, and body weight, says registered dietitian Maddie Pasquariello, MS, RDN.

How Much Protein Do You Need?

As with all aspects of nutrition, your ideal protein intake depends on many factors. This includes age, sex, activity level, and overall health, says Balady. It also depends if you’re trying to build muscle or simply looking to maintain it.

In general, it’s recommended to consume 0.8 to 1 gram of protein per kilogram of body weight each day. To determine your daily requirements, you can use a Dietary Reference Intake (DRI) calculator or follow these steps:

Divide your weight (in pounds) by 2.205. This is your weight in kilograms.Multiple this number by 0.8 to calculate your minimum daily protein needs.

“However, this calculation alone doesn’t tell the full story as protein needs vary widely,” says Balady. Because of this, it’s important to work with a registered dietitian to learn your exact requirements. They can determine your individualized protein targets beyond generic formulas, help distribute protein evenly across meals (for better absorption and muscle support), and tailor recommendations to your health conditions, lifestyle, and preferences, Balady says.

Signs You Need More Protein

Even if you’ve calculated your protein needs, some scenarios might call for a higher intake. According to Balady and Pasquariello, these may include:

AgingRecovering from injury, surgery, or illnessHighly active lifestyle (including activity outside of workouts)Adding more heavy strength workouts to your routineBody recomposition and/or weight loss goalsMetabolic or hormonal conditionsPeriods of high stress

Again, a registered dietitian can consider these factors to determine your personalized protein needs.

Do You Need the Exact Amount Every Day?

If your exact protein requirement is significantly above your current intake, there are some things to keep in mind. “Start slow [when] adding more protein and build your way up to your new goal,” says Pasquariello. This will not only help with digestion but comfort and convenience, too, she says. 

But try not to stress if you’re not meeting your exact protein goal every single day, says Pasquariello. Balady agrees, sharing that it’s normal (and healthy) for daily protein intake to fluctuate based on appetite, activity level, schedule, menstrual cycle, social events, and life in general. “What matters most is consistency over time, not daily perfection,” Balady says. It’s also important to regularly include protein at meals and snacks, and choose protein sources you enjoy that are sustainable for your lifestyle, she says.

“People also tend to stress about making sure every meal contains a certain amount of protein or that they hit a certain number after a workout,” notes Pasquariello. However, “the total number over the course of your day matters more than any individual meal, post-workout or otherwise,” she says.

Diversify Your Protein Sources

Being smart about your protein intake isn’t just about the amount. It’s also vital to diversify your protein sources and choose ones with less saturated fat. This includes lean proteins like chicken breast, fish, seafood, eggs, and legumes like beans and lentils.