What’s The Best Type Of Protein Supplement For Your Goals?

We all know someone who never travels without a protein shake in hand (hey, maybe you are that someone!). Protein supplements may have gotten their start with gym rats, but getting your fill of the macronutrient is important for everyone. In fact, all sorts of people with all sorts of health goals can benefit from a diet rich in protein.

Protein is key for the growth and repair of many tissues and structures in our bodies, which is why most experts recommend it make up 15 to 25 percent of our daily calories. “Our muscles, bones, tendons, hair, skin, and nails all need protein for both maintenance and growth,” says Linzy Ziegelbaum, M.S., R.D., C.D.N. Plus, protein boosts our satiety, supports balanced blood sugar, and can help us maintain a healthy weight.

Downing protein supplements won’t achieve all your health and fitness goals for you, but it can be a major game-changer. “Whether you’re in a hurry, on the road, don’t eat meat, or just don’t want to buy, eat, cook, and consume a couple of pounds of animal protein a day, a protein supplement can be massively beneficial,” says Coleman Collins, C.S.C.S, running coach and author of The Road Warrior: A Practical Guide to Maintaining Your Health, Productivity, and Sanity While Traveling for Work.

And whether you want to manage your appetite, build muscle, or show your skin some love, there’s a specific protein supplement out there for you. Consider this your complete guide.

Want To Build Muscle?

Looking for a boost in the gym? Your number-one protein is whey. Whey protein, which is made from milk, is a complete protein, meaning it contains all nine essential amino acids (the building blocks of protein) our bodies can’t make on their own. Whey contains the highest amount of leucine, an amino acid that helps trigger the muscle protein synthesis process, and is especially important for building muscle, explains Becky Kerkenbush, M.S., R.D.-A.P., C.S.G., C.D. Whey also digests and enters your blood stream faster than any other protein, so it’s a rock star at fueling your muscles during exercise and helping them repair afterwards. Chocolate lovers will dig Optimum Nutrition’s Double Rich Chocolate Gold Standard 100% Whey while vanilla heads will savor BodyTech’s French Vanilla Whey Protein.

If you want to build muscle the plant-based way, Kerkenbush recommends soy protein powder, which is made from ground soybeans that have been dehulled and defatted. “It’s a complete protein and considered the most effective plant-derived source for building or maintaining muscle,” she says. Soy protein digests slower than whey protein, but it’s a good option for those with milk issues or who follow a plant-centric diet, she says. We like Jarrow Formulas’ Iso Rich Soy Protein because it’s free of artificial flavors or sweeteners.

Related: 5 Plant-Based Protein Bars That’ll Make You A Believer

You can also find a variety of plant proteins that use a variety of sources (like soy, pea, and brown rice proteins) to ramp up their amino acid content, such as the uber-popular Vega Sport Chocolate Performance Protein.

Have A Sensitive Stomach?

If most proteins don’t sit well, Kerkenbush recommends trying pea protein, which is derived from the yellow pea and is the most easily digested of the plant proteins. “It’s a good alternative for anyone with a sensitive stomach or doesn’t want to do dairy or soy,” she says. Just keep in mind that it’s not a complete protein. Pea protein is low in some amino acids, like cysteine (which has antioxidant properties and supports digestion) that you’ll need to get from other foods (like soybeans, beef, lamb, eggs, or legumes) throughout the day. Plnt’s naturally-flavored Vanilla Pea Protein is our go-to.

Want To Manage Your Appetite?

If your goal is to feel full and satisfied—and not ready to sprint to the vending machine when three o’clock strikes—try casein protein, which is made from the other protein in cow’s milk: the ‘curds.’ While casein may not provide the quick rush of amino acids you want after a tough workout, research shows it’s more satiating than whey over a period of six hours, which can help keep you from reaching for extra calories or less-than-healthy snacks between meals, says Kerkenbush. Plus, a study published in Annals of Nutrition and Metabolism found that overweight people following a diet and exercise program lost more body fat when they supplemented with casein than they did with whey. Dymatize’s Rich Chocolate Elite Casein is delicious in shakes, oatmeal, and on its own.

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Another option: egg protein, which is made of dried egg whites. While this one digests faster than casein, it’s still slower-absorbing than whey and makes a good substitute for anyone with a dairy allergy. Jay Robb’s Egg White Protein is a fan favorite.

For a shake that really feels like a meal, try a meal replacement protein powder, which contains protein, some healthy fat, and fiber to keep you satisfied and craving-free for longer. These mixable meals—like Next Step’s Fit N Full Shake—are especially helpful if you’re on a tight schedule or watching your calories.

Want To Nourish Your Skin And Joints?

Collagen, a protein found in our connective tissues (think muscles, ligaments, and bones), has been one of the buzziest protein supplements in the game recently. And rightly so, considering research has shown it can bolster the appearance and healthy aging of skin, and help those with joint issues.

Collagen has a very specific amino acid profile, with 45 percent of its total amino acids coming from proline and glycine, two non-essential aminos that provide its hair, skin, nail, and joint benefits. (Only about a quarter of collagen’s amino acids are essential aminos, while more than 60 percent of whey protein’s aminos are—which is why you’d still choose whey over collagen as your primary, all-purpose protein supplement.)

You can take collagen in capsule form or add collagen powder (like Vital Proteins’ eternally hot Collagen Peptides) to your favorite foods and drinks.

Ready To Go? A Few Rules For The Road

Nailing down the protein that best fits into your goals and lifestyle is key—but only if you’ll actually take the stuff!  “Choosing something that you like and will use is more important than taking the ‘perfect’ protein supplement for your situation,” Collins says. So if building muscle is high-priority but you just love the creamy flavor of casein, don’t sweat it.

From there, just make sure the type of protein you want is the first ingredient listed on the package and look for a short ingredients list (five or less is a good benchmark) and natural sweeteners, suggests Kerkenbush.

Pin this handy infographic for future reference: