A Protein Shake Before Bed: Is it a Good Idea?

Do you ever feel like there needs to be a way to catch a break between keeping up with a workout routine and making sure nutrition is on point? 

You might hit the gym in the morning or scramble to squeeze in a session at night. Then the what should I eat part gets wrapped in the mix. How about we make this easier?

Here's a little secret: protein shakes before bed might be the answer you've been searching for! 

We know there's a lot of chatter about whether it's a good idea or not, but we're here to break it down and show you why that nighttime shake could be just what your body needs. 

Benefits of Protein Shakes Before Bed

If you want to add protein to your routine and keep it simple, consider protein shakes before bed. Protein shakes consumed before sleep can act as an anabolic agent and boost your overnight muscle protein synthesis.

This means more protein means more muscle building! Research has shown that extended protein intake right before sleep enables muscles to better utilize the protein in a protein shake and increases overall gains.(1).

So, if you're looking for great results from your gym routine, have a protein shake before heading off for a great night's sleep!

Preserves Muscle Mass

Keeping your muscle is necessary whether you are just starting out, an athlete, or someone that doesn't work out. If your goal is to optimize your performance in the gym or give yourself extra endurance during a long-distance race, maintaining your muscles is vital! 

Muscles are essential to maintaining strength, mobility, and overall health. To preserve muscle mass, it's necessary to engage in regular resistance training and consume enough protein.

Protein Shake Before Bed and Sleep

Protein is a key nutrient for building and repairing muscle tissue. Drinking a protein shake before bed can give your body just what it needs and wants to recover and grow while you sleep. 

Casein protein is a slow-digesting protein perfect for nighttime use because it increases the amount of amino acids in the body over several hours(2)

It's important that you don't grab the first protein off the shelf but choose a high-quality protein powder free of artificial ingredients and added sugars.

Improve Muscle Recovery After Workout

If you want to continue working out, seeing improvements, and avoiding injuries, you must focus on recovery. To improve muscle recovery after a workout, you should always aim to eat a balanced meal or snack that includes protein and carbohydrates within 30 minutes to an hour post-workout(3)

Some call this the window of opportunity. We can call it whatever, but it would be best to eat within that window to guarantee you are refueling and staying consistent. 

This will help replenish glycogen stores and provide your body with the amino acids required to repair and grow muscle tissue. 

Remember - no matter how much protein you are eating, you must stay hydrated and make sure you are getting enough sleep. 

Pre-Sleep Protein Shakes for Weight Management

Drinking a pre-sleep protein shake can be a great tool when you have weight loss goals. Protein helps keep you full and satisfied, which can help reduce cravings and overeating. 

It's also an excellent tool for putting on or maintaining weight because it can help you maintain or even build muscle mass. This is really important when you are in a cut, and your calories are low - you want to make sure you are losing body fat, not muscle. 

Protein Shake Before Bed or After a Workout

You may have heard people talking about the benefits of having a protein shake before bed or after a workout, but do you know why it's important?

We've talked about it a lot already, but protein is one of the main drivers for muscle growth and repair - you need it at all times, whether it comes from a balanced meal or a protein shake.

Protein before bed or after a workout are both great options. It just depends on what the rest of your day looks like and how your meals are structured. Whichever you choose to use is a win! 

If you want protein before bed, casein is the go-to option. It helps to stimulate muscle protein synthesis over a very long period, giving your muscles more time to recover. 

No matter how late your workouts are or how hectic your day is, your muscles will thank you for making a casein protein shake part of your nighttime routine!

Bed Time Protein and Muscle-Protein Synthesis

Consuming a protein shake before bed has been shown to lead to muscle-protein synthesis, which helps the body repair and grow. Its benefits go beyond just fitness goals. Muscle growth is excellent for your overall health!

Building muscle while you sleep is the best thing next to making money while you sleep. Everyone wants to participate in that. Plus, a more recovered body makes you feel energized and ready to take on the next workout. 

Casein vs. Whey: Which Protein Shake is Better at Night?

Getting enough of the right kind of protein is essential for staying healthy and growing strong. But when it comes to choosing a pre-bed protein, casein, or whey, which one wins the battle?

While casein takes a little longer to digest, making it great for a slower release of amino acids. 

At the same time you snooze, whey protein can be digested and broken down more quickly so your muscles can get the energy they need. So whether you're looking for an extra snack before bed or something more substantial to tide you over until morning, casein vs. whey may come down to your personal preferences and goals. 

Both are excellent protein sources, though, and can make for delicious treats that feel like something special rather than just another dinner dish. So go ahead and have yourself a big helping of casein or whey — your muscles will thank you either way!

How Much Protein Should I Take Each Day?

Nutritional needs differ from person to person, so it's impossible to give a one-size-fits-all answer to the question, How much protein should I take each day? However, there is generally a recommended guideline for age, weight, and height. 

If you are an average adult of healthy weight and height (not pregnant or lactating), the general recommendation is 0.8g/kg of protein per day. For athletes or those looking to build muscle mass, their dietary needs are slightly higher at 1.4-2g/kg of body weight per day, and those who are focused on their physique may require up to 2.7 g/kg per day(4,5). 

If you have questions or need help figuring out where to start, contacting a professional is always a good idea. 

Can I Have a Protein Shake Before Bed on Rest Days?

When trying to reach your nutrition and fitness goals, protein shakes can be a helpful tool! Depending on your individual needs, protein shakes can provide the extra boost you need before bed on rest days if it fits your overall plan.

For some of us, sticking to a routine is really important in helping build consistency. So, if you want to keep up with this daily habit - that's completely okay. 

Protein helps to fuel performance and maintain lean muscle mass - so there shouldn't be a big concern that you will gain weight if you are within your calorie range. If having a protein shake before bed is something that can help you reach your goals and stay on track, definitely go for it!


As you can see, drinking a protein shake before bed has advantages, and it's up to you to pick the best option based on your lifestyle and goals. The most important thing is that it's something you can be consistent with. 

Remember that not all proteins are equal, so be sure to read the ingredient label, research the product, and invest in a quality source that fits your goals and preferences. 

Protein is important for your overall health and well-being, so whether you have more protein during the day or more at night, make sure you are meeting your daily target. Protein shakes can help make sure you hit that target, so drink up!