Protein: How Much You Actually Need, and How to Pick a Powder
Protein has had a moment over the last few years, and for good reason. It plays a central role in muscle maintenance, satiety, immune function, and recovery, and a meaningful number of people, especially those over 40, active people, and those cutting calories, are taking in less than they actually need.
The confusing part is figuring out how much is actually right for you, since the number you see printed on a cereal box or government chart is a floor, not necessarily a target.
The official number is a minimum, not a goal
The standard RDA for protein is about 0.36 grams per pound of body weight, which works out to roughly 54 grams a day for a 150 pound person. That number was established to prevent deficiency in a sedentary population. It was never meant to represent an optimal intake for someone who exercises, is trying to maintain muscle with age, or is working to lose fat while preserving lean mass.
A growing body of research suggests that a meaningfully higher intake, often in the range of 0.6 to 1 gram per pound of body weight, better supports muscle maintenance and body composition goals for most active adults.
Finding your actual number
A simple way to think about it: take your body weight in pounds and aim for somewhere between 0.6 and 0.8 grams of protein per pound as a general target for an active adult. Someone specifically focused on building muscle, or who is older and working to preserve muscle mass as a protective measure against age related decline, often does well closer to the top of that range or slightly above it.
For a 150 pound person, that lands somewhere between 90 and 120 grams a day, spread across meals rather than concentrated in one sitting.
If you have kidney disease or another condition affecting protein metabolism, talk with your doctor before significantly increasing intake, since the usual guidance does not apply the same way.
Spread it out across the day
Research suggests the body uses protein more effectively for muscle maintenance when it is spread across three or four meals rather than loaded almost entirely into dinner, which is the common pattern for a lot of people. A meal with 25 to 40 grams of protein, repeated several times a day, tends to work better than a light breakfast, light lunch, and protein heavy dinner.
Food first, powder second
Protein powder is a convenient tool, not a requirement. Whole food sources, including eggs, poultry, fish, dairy, beans, lentils, tofu, and tempeh, provide protein alongside other nutrients that a powder does not replicate. A powder is most useful for filling a specific gap: a rushed breakfast, a post workout window, or an afternoon when hitting your number through food alone is not realistic.
Choosing a protein powder
Whey protein
The most studied and widely used protein powder, derived from milk. Whey is a complete protein, meaning it contains all essential amino acids, and it is digested and absorbed quickly, which is part of why it is popular immediately after exercise.
Whey concentrate retains more fat and lactose and tends to be less expensive. Whey isolate goes through additional processing to remove most of the fat and lactose, resulting in a higher percentage of protein by weight and making it a better option for anyone who is lactose sensitive but not fully avoiding dairy.
Casein protein
Also derived from milk, but digested much more slowly than whey, which makes it a popular choice before bed since it releases amino acids gradually overnight. Casein tends to mix into a thicker, pudding like texture rather than a thin shake.
Plant based protein
Pea, rice, hemp, and soy are the most common sources, often blended together specifically because individual plant proteins tend to be lower in one or more essential amino acids, and blending compensates for that gap. A pea and rice blend, for example, complements each other well and comes close to the completeness of whey.
Plant based powders are the right choice for anyone who is vegan, dairy sensitive, or simply prefers to avoid animal products, and quality options have improved considerably over the last several years in both texture and taste.
Collagen
Worth mentioning separately, since it is often marketed alongside protein powders but serves a different purpose. Collagen is not a complete protein and is not well suited as a primary protein source, but it has its own research behind joint and skin support, which we covered in our joint comfort article. Think of it as a complement to your main protein source, not a replacement for it.
What to check on the label
The same label literacy that applies to any supplement applies here. Look at grams of protein per serving relative to total calories, since some products pad serving size with added sugars or fillers that dilute the actual protein content. Check whether the amino acid profile is complete, particularly for single source plant proteins. And if third party testing matters to you, the same testing seals that apply to other supplements apply to protein powders as well.
A simple way to start
If you are not sure where to begin, pick one meal a day where protein tends to fall short, often breakfast, and add 20 to 25 grams there first, either through food or a powder. That single change closes most of the gap for a lot of people without requiring a full overhaul of every meal.
Come find the right one for you
We carry whey, casein, and several plant based options, and our staff can help you compare labels side by side if you are trying to find the best fit for your goals, dietary restrictions, or taste preferences.
This article is for general educational purposes and isn't medical advice. Talk with your healthcare provider before significantly changing your protein intake, especially if you're pregnant, nursing, or managing a health condition, including kidney disease.
