High-Protein Diet Guide: How Much You Need + Easy Meals

Kristen Drummey | 3/20/2025

High Protein Meal - High Protein Diet Meal Prep

Reviewed by Culinary Nutritionist | Kristy Del Coro, MS, RDN, LDN

Key Takeaways

Most people need 0.8g of protein per kilogram of body weight at minimum. Active adults and anyone over 50 likely need more, closer to 1.2–2.0g per kilogram.
High-protein diets support weight loss by reducing hunger hormones and increasing the calories your body burns digesting food.
The best protein sources are complete proteins: eggs, lean meats, fish, Greek yogurt, and for plant-based eaters, tofu, tempeh, and lentils.
If cooking every day isn't realistic, CookUnity's award-winning chefs make high-protein meals ready in 2 minutes. Protein count listed on every dish.

What is a High Protein Diet?

Protein is one of the most important macronutrients in your diet, serving as the building block for muscle, skin, enzymes, and hormones. Whether you’re looking to maintain or build muscle mass, lose weight, boost your metabolism, or simply feel more energized throughout the day, eating enough protein is key.

In the US, a standard diet recommends about 0.8 grams of protein per kilogram of body weight per day. That means a 150-pound person (68 kg) should aim for at least 54 grams of protein daily to maintain basic health. However, high-protein diets go beyond the minimum and prioritize protein intake—often doubling or even tripling the recommended amount.

Benefits of High-Protein Diets

There are several benefits to high-protein diets. Increasing protein intake while decreasing calories can result in weight loss, increased feelings of satiety, easier maintenance of muscle mass, and improved metabolism.

Weight Loss and Satiety

High-protein diets can be an effective tool for weight management. Research suggests that increasing protein intake—whether from animal or plant sources—is associated with reductions in body weight, body mass index (BMI), and waist circumference.

Beyond weight loss, a high-protein diet also helps control appetite. Protein increases satiety—the feeling of fullness after a meal—by influencing hunger hormones and slowing digestion. This effect makes it easier to reduce overall calorie intake and maintain a sustainable, satisfying eating pattern

Muscle Building and Maintenance

Protein is the foundation of strong, healthy muscles—which is why you’ll see protein shakes and supplements marketed to athletes and gym-goers everywhere. Eating protein-rich foods before or after a workout helps support muscle growth, recovery, and strength gains. For those who train regularly, getting enough protein is essential to maximize results and maintain performance.

But a high-protein diet isn’t just for bodybuilders. Muscle mass plays a key role in overall health, supporting bone strength, mobility, and daily function. As we age, maintaining muscle becomes more challenging, and age-related muscle loss (sarcopenia) can lead to weakness, slower metabolism, and reduced mobility. Studies show that higher-protein diets help preserve muscle mass, enhance strength gains from exercise, and reduce muscle atrophy over time. Whether you're lifting weights or just looking to stay strong as you age, prioritizing protein can make a big difference in long-term health and mobility.

Improved Metabolic Rate

Your metabolism is what keeps your body running, converting the food you eat into energy. While we tend to think of energy as something we use for exercise or daily activities—like going for a run or cooking dinner—most of it actually goes toward keeping us alive. Breathing, digesting food, and even sleeping all require energy.

A high-protein diet can help increase your metabolism in two key ways:

It raises your resting metabolic rate—the number of calories your body burns just to keep up with basic functions.
It boosts the thermic effect of food, which is the energy your body spends digesting and processing meals.

Digesting food takes work, and protein requires more energy to break down than carbs or fats. That means if you're eating a high-protein diet, your body naturally burns more calories throughout the day—even when you're not active. Over time, this can support weight loss, better energy levels, and a healthier metabolism without extreme dieting or excessive exercise.

How a High-Protein Diet Works

Unlike low-carb or keto diets, which focus on reducing certain macronutrients, a high-protein diet is all about increasing protein intake without strict carb restrictions. This makes it a great option for people who want the benefits of weight loss and muscle maintenance without cutting out entire food groups. Because protein helps regulate appetite, supports metabolism, and preserves lean muscle mass, high-protein diets can be both effective and sustainable—especially for those who worry that dieting will leave them hungry or low on energy.

Appetite Control and Cravings

Hunger and cravings are largely controlled by hormones that fluctuate throughout the day based on what and when we eat. Hormones like ghrelin and neuropeptide-Y trigger hunger signals, while others, such as leptin, insulin, and GLP-1, help promote feelings of fullness.

One of the biggest advantages of a high-protein diet is its ability to naturally increase satiety hormones and decrease hunger hormones. This means you stay fuller for longer, reducing the likelihood of overeating or giving in to cravings. Eating more protein makes it easier to cut calories without feeling deprived, which is a key factor in long-term weight loss success.

Impact on Metabolism and Energy Levels

A high-protein diet doesn’t just help with appetite—it also boosts metabolism. Because protein takes more energy to digest than fats or carbs, your body naturally burns more calories when processing high-protein meals. Studies show that increasing protein intake can raise both resting metabolic rate (calories burned at rest) and diet-induced thermogenesis (calories burned through digestion). This means you can burn more calories daily without additional effort, making it easier to maintain a calorie deficit.

Beyond metabolism, a high-protein diet can also stabilize energy levels. Unlike carb-heavy meals that cause blood sugar spikes and crashes, protein slows digestion and helps regulate blood sugar levels. This can help prevent energy dips throughout the day, keeping you feeling steady and focused instead of sluggish.

Preserving Lean Muscle Mass

One common concern with weight loss is that the body burns muscle along with fat, leading to a slower metabolism and weaker muscles. But high-protein diets help preserve lean muscle mass while promoting fat loss. Since muscle burns more calories than fat, keeping muscle intact can make it easier to maintain weight loss over time. Plus, strong, healthy muscles are essential for overall mobility, strength, and long-term health.

By making protein a priority, you’re not just losing weight—you’re fueling your body in a way that keeps you feeling strong, full, and energized.

How To Start a High-Protein Diet

Before making any big dietary changes, it’s always a good idea to check in with your doctor—especially if you have kidney issues, diabetes, or other underlying health conditions. While high-protein diets are generally safe for healthy adults, it’s important to make sure this approach aligns with your specific needs and goals.

If you’re ready to get started, the key is to focus on whole, high-quality protein sources while keeping your meals balanced. Lean meats, fish, eggs, dairy, legumes, and plant-based proteins can all be part of a healthy high-protein diet. Meal prepping and planning ahead can make it easier to hit your protein goals without missing out on other essential nutrients like fiber, healthy fats, and vitamins. And if you don’t have time to cook? Meal delivery services that offer high protein meals can take the guesswork out of meal planning, ensuring you get nutritious, protein-packed meals without the extra effort.

How Much Protein Do You Really Need?

There’s no one-size-fits-all answer when it comes to protein intake—it depends on your body, lifestyle, and goals. The general recommendation of 0.8 grams of protein per kilogram of body weight is actually just the bare minimum to prevent muscle loss. If you’re active or over 50, you may need more for your optimum strength and health.

If you’re following a high-protein diet, your ideal protein intake will depend on your activity level:

For general weight loss and maintenance: Aim for 1-1.2 grams of protein per kilogram of body weight per day.
For athletes or those training intensely: You may need more, 1.5-2.0 grams per kilogram, to support muscle recovery and fat loss.

Finding the right balance is key—enough protein to fuel your body without going overboard. The good news? With a high-protein meal plan, hitting your target is easy and delicious.

Tips for a Smooth Transition

Getting more protein in your diet doesn’t have to be overwhelming. Here are some simple ways to ease into a high-protein lifestyle:

Increase your protein intake gradually – Give your body time to adjust by adding more protein over a few days or weeks.
Plan your meals ahead of time – Make sure you’re still getting enough healthy fats, carbohydrates, and micronutrients to keep meals balanced.
Experiment with different protein sources – Try lean meats, fish, eggs, dairy, tofu, legumes, and protein-rich grains to find what works best for you.
Use a meal delivery service – If cooking isn’t your thing, high-protein meal delivery can help you stay on track without the stress of planning and prepping.

By making small, sustainable changes, you’ll find it easier to stick with a high-protein diet and enjoy all the benefits it has to offer—without feeling like you're on a restrictive meal plan.

Meal Planning Strategies

Meal planning and tracking macros can feel overwhelming, especially if you’re new to a high-protein diet. But the good news? You don’t have to do it all yourself. Meal delivery services like CookUnity take the guesswork out of meal prep, offering chef-prepared, high-protein meals that are both delicious and nutritionally balanced.

With CookUnity’s rotating menu, you get fresh, protein-packed meals delivered straight to your door—no complicated meal prep, no measuring, and no stressing over whether you’re hitting your daily protein goals. Whether you're focused on muscle building, weight loss, or overall health, our high-protein offerings make it easy to stay on track without sacrificing taste or convenience.

Ready to fuel your body with the right meal? Check out our High Protein Meals.

Choosing the Best Protein-Rich Foods

Eating enough protein is key to making a high-protein diet work, but quality matters just as much as quantity. The best approach? Focus on lean, nutrient-dense protein sources—including both animal-based and plant-based proteins—to ensure you’re getting a well-rounded mix of essential vitamins and minerals (source).

Animal-Based Protein Sources:

When choosing animal proteins, opt for minimally processed options with lower levels of saturated fat and sodium. Some of the best high-protein animal foods include:

Lean meats – Chicken, turkey, and lean cuts of beef or pork
Fish & seafood – Salmon, tuna, cod, shrimp
Eggs & dairy – Milk, Greek yogurt, cottage cheese

Plant-Based Protein Sources:

Meat isn’t the only way to hit your protein goals. There are plenty of plant-based foods that deliver just as much protein per serving as animal-based options:

Legumes – Lentils, chickpeas, black beans, edamame, lupini beans
Nuts & seeds – Almonds, peanuts, chia seeds, sunflower seeds
Soy-based foods – Tofu, tempeh, soy milk

And don’t forget—some proteinaceous fruits and vegetables pack in surprising amounts of protein too! Options like peas, spinach, and even certain fruits can help round out your daily intake.

By choosing a variety of protein sources and incorporating convenient, high-protein meal options like CookUnity, sticking to a high-protein diet has never been easier—or more delicious.

Final Thoughts

If you're looking for a diet that keeps you full, supports weight loss, and helps maintain muscle mass, a high-protein diet could be a great fit. By naturally curbing hunger and boosting metabolism, high-protein eating makes it easier to burn calories—without extreme workouts or cutting your intake to unsustainable levels.

That said, getting enough protein daily does take some planning. Tracking your intake and making sure your meals are nutrient-balanced can feel like a challenge—but it doesn’t have to be. With CookUnity’s high-protein meal delivery, you get chef-prepared meals designed to help you hit your protein goals effortlessly. Skip the meal prep, enjoy restaurant-quality meals, and experience the benefits of a high-protein diet—without the hassle.

FAQs About High Protein Diets

Which type of diet is highest in protein?

A high-protein diet is specifically designed to maximize protein intake, but several other diets naturally emphasize protein as well.

Ketogenic (Keto) Diet – While primarily high in fat, keto diets also include moderate to high protein intake to maintain muscle mass and support metabolism.
Paleo Diet – Focused on whole, unprocessed foods, the paleo diet encourages eating plenty of lean meats, fish, eggs, and nuts, making it naturally high in protein.
Low-Carb Diets (e.g., Atkins) – Since carbs are restricted in a low-carb diet, protein intake is often increased to balance energy needs and promote satiety.
Mediterranean Diet – While not explicitly high-protein, the Mediterranean diet includes lean meats, fish, legumes, and dairy, making it higher in protein than a typical Western diet.

Ultimately, the best high-protein diet depends on your goals—whether it's weight loss, muscle gain, or overall health. The key is choosing nutrient-dense, whole-food protein sources that fit your lifestyle.

Can I lose weight on a high-protein diet?

Yes! A high-protein diet can be an effective way to lose weight—as long as you maintain a calorie deficit (burning more calories than you consume).

One of the biggest advantages of a high-protein diet is that protein keeps you full longer, helping to reduce cravings and prevent overeating. Plus, digesting protein burns more calories compared to fats or carbs, which can boost your metabolism over time.

For the best results, focus on healthy protein sources like lean meats, fish, eggs, dairy, and plant-based proteins while balancing your meals with nutrient-rich vegetables and healthy fats.

What are the disadvantages of a high-protein diet?

While high-protein diets offer many benefits, there are some potential downsides to keep in mind:

Strain on Kidneys – If you have kidney disease or diabetes, excessive protein intake can put added strain on kidney function.
Increased Risk of Kidney Stones – A very high-protein intake, especially from animal-based sources, can increase the risk of kidney stones, particularly if hydration is neglected.
Heart Health Concerns – Diets high in processed or fatty meats (like bacon, sausage, or red meat) may raise the risk of cardiovascular disease and colon cancer.

To minimize risks, focus on lean proteins (like fish, poultry, eggs, and legumes), stay hydrated, and consult a healthcare professional before making significant dietary changes—especially if you have existing health conditions.

How can I get 150g of protein a day?

Hitting 150 grams of protein per day is easier than you might think—meal planning and choosing high-protein foods at every meal will help you reach your goal. Here’s an example of a daily breakdown:

Breakfast: 3-egg omelet with vegetables + cheese (18g protein)
Snack: Greek yogurt with almonds (20g protein)
Lunch: Grilled salmon with quinoa and lentils (50g protein)
Snack: Protein shake or cottage cheese with berries (25g protein)
Dinner: Grilled chicken breast with roasted chickpeas and steamed broccoli (40g protein)

By incorporating lean meats, dairy, legumes, and protein-rich snacks, you can easily reach 150g of protein per day—without feeling like you’re eating the same thing over and over. Meal delivery services like CookUnity that focus on high-protein meals can also take the guesswork out of hitting your target!

Which food is the king of protein?

The best protein sources are complete proteins, meaning they contain all nine essential amino acids your body needs. Some of the top contenders for the "king of protein" title include:

Eggs – One of the most bioavailable protein sources, packed with essential nutrients.
Lean Meats (Chicken, Beef, Fish) – High in protein per serving and rich in vitamins like B12 and iron.
Dairy (Milk, Greek Yogurt, Cottage Cheese) – Offers high-quality protein along with calcium for bone health.
Soy (Tofu, Tempeh, Edamame) – A top plant-based complete protein for vegetarians and vegans.
Quinoa – One of the few complete plant-based grains, making it a great alternative for those avoiding animal products.

While there’s no single “king” of protein, choosing a variety of complete protein sources ensures you’re getting all the essential amino acids needed for muscle growth, metabolism, and overall health.

What is the healthiest protein to eat?

The healthiest proteins are complete proteins that contain all essential amino acids, are minimally processed, and are low in saturated fat. These options provide muscle-building benefits while supporting heart health and overall wellness:

Lean meats – Chicken breast, turkey, and grass-fed beef
Fish & seafood – Salmon, tuna, and shrimp (rich in omega-3s)
Eggs & dairy – Greek yogurt, cottage cheese, and low-fat milk
Plant-based proteins – Tofu, tempeh, lentils, chickpeas, black beans
Whole grains & seeds – Quinoa, chia seeds, hemp seeds

What is the unhealthiest protein?

Not all proteins are created equal. The unhealthiest proteins tend to be high in saturated fat, heavily processed, or packed with additives. These should be eaten in moderation:

Fatty cuts of beef & pork – Ribeye, pork belly, and processed sausages
High-fat ground beef – Opt for 90% lean instead of 75-85%
Processed meats – Deli meats, hot dogs, bacon, and fried chicken
High-fat poultry – Duck and skin-on chicken thighs

For optimal health, focus on lean, whole-food protein sources and limit heavily processed or fatty options.

What is the best protein breakfast?

A great high-protein breakfast is one that’s made from whole, nutritious ingredients and keeps you full and energized throughout the morning. While eggs are a classic go-to, there are plenty of delicious options to switch things up: