Live Well, Age Well
Protein and Muscle as We Age: How Much You Actually Need
on Sep 07 2026
For most of my life I thought of protein as a young man's concern.
I started training at twelve. Through my twenties and thirties, protein was about building something — putting on size, recovering from hard sessions, chasing a number in the gym. I naturally thought that as I got older and trained less aggressively, I'd need less of it.
That turns out to be backwards. And it's one of the more consequential things I got wrong.
The Number Most of Us Are Using Is a Floor, Not a Target
If you've ever looked up how much protein you need, you probably found the RDA: 0.8 grams per kilogram of body weight. For someone at 170 pounds, that's about 62 grams a day.
Here's what that number actually means. The RDA was established as the minimum required to prevent deficiency in most healthy adults. It answers the question "how little can I get away with?" — not "how much do I need to thrive?"
Those are different questions, and the gap between them widens as our bodies change.
What Actually Changes
Two things shift, and they compound.
Muscle becomes something you maintain
Starting somewhere in the fourth decade, adults lose muscle mass gradually and continuously. The decline is slow enough that many people don't notice it happening — they notice the result. The suitcase feels heavier. Getting up off the floor takes a hand on the coffee table. Recovery from a long day takes longer than it used to.
This progressive loss of muscle mass and strength has a name — sarcopenia — and it isn't a disease you catch. It's the default trajectory in the absence of enough stimulus and enough protein.
Your muscles respond less efficiently to the same protein
This is the part I'd never heard of, and it changes what you do about the first one.
When you eat protein, your body uses it to build and repair muscle tissue. As we age, that response becomes blunted — the same amount of protein produces less of a building signal than it did twenty years earlier. Researchers call this anabolic resistance.
The practical consequence is uncomfortable: at exactly the point where you're losing muscle, your body gets worse at using the raw material to replace it.
The counterintuitive part
Many of us quietly eat less protein as we get older. Appetite softens, meals get smaller, meat feels heavier than it used to.
Meanwhile the requirement is going up.
So How Much Do You Actually Need?
Expert groups that have looked specifically at protein needs in later life — among them the PROT-AGE study group — recommend intakes meaningfully above the RDA. Generally in the range of 1.0 to 1.2 grams per kilogram of body weight per day for healthy adults, and higher for those training hard or recovering from illness.
Those recommendations were written with older adults in mind. But the shift they are responding to does not switch on at sixty-five. It is gradual, and it begins decades earlier — which makes this less a line to cross than a direction to start moving in.
Translated into pounds, that's roughly 0.45 to 0.55 grams per pound.
Body weight
RDA minimum
Recommended range as we age
140 lb
~51g
~63–77g
170 lb
~62g
~77–94g
200 lb
~90–110g
~90–110g
The gap between those two columns is the thing worth noticing. For a lot of people it's twenty to thirty grams a day — not a wholesale diet change, but not nothing either.
One note before we go further: if you have kidney disease or any condition where protein intake is medically managed, these general figures don't apply to you. That's a conversation for your doctor, not a blog post.
The Part Almost Nobody Gets Right
Here's where the advice usually stops — hit your daily number. But total intake is only half the story.
Your body doesn't bank protein. It can't take a large evening intake and apply it retroactively to a morning that had none. Muscle protein synthesis is triggered meal by meal, and each meal needs to clear a threshold to trigger it at all.
Which means how you distribute protein across the day matters as much as the total.
Many of us eat backwards. Toast or coffee for breakfast. Something light at lunch. Then most of the day's protein arrives at dinner, when the body can only use so much at once.
A more useful pattern is roughly even distribution — a meaningful amount of protein at each of three or four points in the day, rather than one large delivery at the end of it.
Because of anabolic resistance, the per-meal threshold also rises as we age. A serving that would have triggered a full response at thirty may not at sixty. That's an argument for a bit more at each meal, not just more overall.
Quality: Not All Protein Signals Equally
Protein is made of amino acids. Nine of them are essential — your body can't make them, so they have to come from food.
One in particular, leucine, acts as something close to a switch. It's the amino acid most directly associated with triggering muscle protein synthesis. A protein source rich in leucine sends a stronger signal than one that isn't.
This is where plant protein gets unfairly dismissed, and where the picture is more interesting than the usual argument allows.
Pea protein contains all nine essential amino acids — it's a complete protein, which many plant sources aren't. And in a twelve-week randomized controlled trial comparing pea protein to whey during resistance training, muscle thickness gains were statistically equivalent between the two groups. The researchers concluded that pea protein could serve as an alternative to whey-based products.
That doesn't make them identical. Whey is somewhat higher in leucine per gram and digests faster. But the outcome data over a real training period is closer than many people assume, and the gap narrows further at adequate doses.
We'll take that comparison apart properly later in the series. For now, the useful conclusion is simpler than the debate: complete plant protein works.
Where This Gets Practical
Twenty to thirty extra grams a day sounds like a lot until you break it down. It's one additional protein-forward moment in your day, most days.
Some ways that looks in practice:
Add protein to breakfast if it's currently coffee and something beige. For many of us this is the highest-leverage change available.
Make the mid-morning or mid-afternoon gap a protein moment rather than a carbohydrate one. Same calories, different signal.
Anchor each meal around a protein source before deciding what goes with it.
Around training, protein before or after the session supports recovery. The total across the day still matters more than hitting a precise window.
What We Made, and Why 12 Grams
Every LAST Bar has twelve grams of complete plant protein, led by pea protein — all nine essential amino acids, plus iron and arginine.
Twelve isn't an accident, and it isn't a maximum. It's the amount that fits into a bar that still tastes like food rather than a supplement, alongside eight to nine grams of prebiotic fiber and zero added sugar. We could have pushed the protein number higher. The bar would have been drier, chalkier, and harder to want.
The point isn't that one bar meets your daily requirement. It doesn't. The point is that it closes the gaps — mid-morning, mid-afternoon, before or after a workout, the drive home, the airport — that many of us fill with something offering no protein at all.
That's the whole design philosophy: not a meal replacement, but a better version of a moment you're already having.
Whichever gap you're trying to close, a box of twelve is the practical way to do it — one decision, ready whenever the moment shows up.
Shop LAST Bars
The Short Version
The RDA is a floor to prevent deficiency, not a target for aging well.
Muscle declines gradually from midlife, and your body gets less efficient at using protein at the same time.
Recommended intake for healthy adults as we age runs meaningfully above the RDA — roughly 0.45 to 0.55 grams per pound.
Distribution matters. Three or four protein moments beat one large dinner.
Breakfast is where many of us have the most room to improve.
Complete plant protein works. Pea protein contains all nine essential amino acids.
Next in the series: the nutrient almost everyone under-eats — fiber, your gut, and why the source matters more than the number.
Sources
Bauer et al., PROT-AGE Study Group — Evidence-Based Recommendations for Optimal Dietary Protein Intake in Older People, Journal of the American Medical Directors Association
Babault et al. — Pea proteins oral supplementation promotes muscle thickness gains during resistance training, Journal of the International Society of Sports Nutrition
National Institute on Aging — Age-related muscle loss and physical function (nia.nih.gov)
Institute of Medicine — Dietary Reference Intakes for Energy, Carbohydrate, Fiber, Fat, Fatty Acids, Cholesterol, Protein, and Amino Acids
Wall et al. — Anabolic resistance of muscle protein synthesis with aging, Nutrition Reviews
Banaszek et al. — The Effects of Whey vs. Pea Protein on Physical Adaptations Following 8 Weeks of High-Intensity Functional Training, Sports
This article is general information, not medical or dietary advice. These statements have not been evaluated by the Food and Drug Administration. This product is not intended to diagnose, treat, cure, or prevent any disease.
This post is part of the Resetting Normal Series. Read the full series: Part 1: Resetting Normal · Part 2: What's Actually in Your Protein Bar · Part 3: Protein and Muscle as We Age
Here's to aging well… Cheers!
— JoelFounder, Five Plus Protein
How Much Protein Do You Need to Build Muscle?
on Mar 15 2026
How Much Protein Do You Need to Build Muscle?
Protein plays a central role in building and maintaining muscle.
But how much protein is actually needed for muscle growth?
The answer depends on factors like body weight, activity level, and training intensity.
If you haven't calculated your protein needs yet, start with our Daily Protein Intake Guide.
Recommended Protein Intake for Muscle Growth
Research suggests the optimal range for muscle growth is:
1.6–2.2 grams of protein per kilogram of body weight
For example:
Body Weight
Protein Target
150 lb
110–150 g
170 lb
123–169 g
190 lb
138–189 g
Protein Quality Matters
Muscle repair requires sufficient essential amino acids.
Good protein sources include:
eggs
fish
legumes
tofu
plant protein blends
Convenient options like protein bars can help close gaps between meals.
Protein Timing and Muscle Growth
Muscle recovery is best supported when protein intake is spread throughout the day, especially around workouts.
The Bottom Line
For muscle growth, most research supports 1.6–2.2 g/kg of protein per day.
If you want to estimate your personal protein needs, see our Daily Protein Intake Guide.
Many people find they fall short of their daily protein goal.
A clean plant-based protein bar can be a convenient way to close that gap between meals.
Many people find they fall short of their daily protein goal.
A clean plant-based protein bar can be a convenient way to close that gap between meals.
Looking for more? Explore our nutrition guides: Daily Protein Intake · Protein Needs After 40 · How to Increase Protein Intake · Best Plant-Based Protein Sources · Protein Timing
Protein Timing: Is It Better to Eat Protein Throughout the Day?
on Mar 15 2026
Protein Timing: When Should You Eat Protein?
For many years, nutrition advice focused mainly on total daily protein intake.
But newer research suggests protein distribution across meals may also matter.
If you're unsure how much protein you need each day, start with our Daily Protein Intake Guide.
Why Protein Timing Matters
Protein helps repair and maintain muscle tissue.
But the body can only use a certain amount efficiently at one time.
Spreading protein across meals helps support:
muscle repair
energy levels
appetite regulation
Example of Daily Protein Distribution
Instead of consuming most protein at dinner, aim for balance:
Breakfast → 25gLunch → 25gDinner → 30gSnack → 10-15g
This pattern supports better utilization of protein throughout the day.
When Protein Timing Matters Most
Protein timing may be especially important for:
active adults
strength training
adults over 40
people trying to maintain muscle mass
The Bottom Line
Total protein intake matters most.
But distributing protein across meals can help your body use it more effectively.
To estimate your daily needs, see our Daily Protein Intake Guide.
Many people find they fall short of their daily protein goal.
A clean plant-based protein bar can be a convenient way to close that gap between meals.
Looking for more? Explore our nutrition guides: Daily Protein Intake · Protein Needs After 40 · How to Increase Protein Intake · Best Plant-Based Protein Sources · How Much Protein to Build Muscle
How to Increase Protein Intake: Easy Ways to Hit Your Daily Protein Goal
on Mar 15 2026
How to Increase Protein Intake Without Eating All Day
Many people discover something surprising when they calculate their protein needs.
They’re often 20–40 grams short of their daily protein target.
The good news is that closing that gap usually doesn’t require drastic diet changes. A few small adjustments can make a meaningful difference.
If you're unsure how much protein you need, start with our guide on Daily Protein Intake: How Much Protein Do You Really Need Per Day?
👉Daily Protein Intake Guide
Why Most People Miss Their Protein Goal
The biggest protein gap usually happens earlier in the day.
A typical eating pattern might look like this:
Breakfast → 8–10gLunch → 15–20gDinner → 35–40g
Instead of concentrating protein at dinner, spreading it across meals helps the body use it more effectively.
A better distribution might look like:
Breakfast → 25gLunch → 25gDinner → 30gSnack → 10–20g
Simple Ways to Increase Protein Intake
Add Protein to Breakfast
Breakfast is often the lowest protein meal.
Good options include:
eggs
yogurt
smoothies with plant protein
oats with nuts or seeds
Upgrade Your Lunch
Adding protein-rich ingredients can make lunch more balanced.
Examples:
lentils
tofu
chickpeas
quinoa
lean protein sources
Use Smart Snacks
Snacks are often the easiest place to increase protein intake.
Options include:
Greek yogurt
nuts or seeds
smoothies
clean plant-based protein bars
Convenient options can help close the protein gap on busy days.
The Bottom Line
Reaching your protein goal doesn't require complicated meal planning.
Most people simply need to distribute protein more evenly across the day.
If you haven't calculated your protein needs yet, start with our Daily Protein Intake Guide.
Many people find they fall short of their daily protein goal.
A clean plant-based protein bar can be a convenient way to close that gap between meals.
Looking for more? Explore our nutrition guides: Daily Protein Intake · Protein Needs After 40 · Best Plant-Based Protein Sources · Protein Timing · How Much Protein to Build Muscle
Protein Needs After 40: How Much Protein Do You Really Need?
on Mar 15 2026
Protein Needs After 40: Why Protein Matters More as You Age
Most people don’t think about protein until they start exercising more or trying to build muscle.
But protein becomes increasingly important as we get older, even if your goal is simply to stay healthy and active.
Around age 40, the body begins to gradually lose muscle mass in a process called sarcopenia. Without enough protein and physical activity, this muscle loss can accelerate over time.
Maintaining muscle is important not just for strength, but also for metabolism, mobility, and long-term health.
Why Protein Becomes More Important With Age
As we age, the body becomes less efficient at using protein to build and maintain muscle. Researchers call this anabolic resistance.
Because of this change, adults over 40 often benefit from slightly higher protein intake compared with younger adults.
Protein supports:
• muscle maintenance• metabolic health• strength and mobility• bone health• energy and recovery
Research from the National Institutes of Health highlights the role of adequate protein intake in preserving muscle and functional health as we age.
How Much Protein Do Adults Over 40 Need?
Many experts recommend:
1.0–1.4 grams of protein per kilogram of body weight depending on activity level.
For example:
Body Weight
Protein Per Day
140 lb
64–90 g
160 lb
73–102 g
180 lb
82–115 g
If you want a simple way to calculate your needs, see our guide on Daily Protein Intake.
The Most Common Protein Gap
Many people consume the majority of their protein at dinner.
Breakfast and lunch are often protein-light, which leaves people short of their daily goal.
Simple additions can help:
• eggs or yogurt at breakfast• legumes or tofu at lunch• a clean plant-based protein bar between meals
Consistency matters more than perfection.
The Bottom Line
Protein isn’t just about building muscle.
It’s about maintaining strength, metabolism, and independence as we age.
For many adults over 40, aiming for 1.0–1.4 g/kg per day can help support long-term health and vitality. You can view our guide on Daily Protein Intake here.
Many people find they fall short of their daily protein goal.
A clean plant-based protein bar can be a convenient way to close that gap between meals.
Looking for more? Explore our nutrition guides: Daily Protein Intake · How to Increase Protein Intake · Best Plant-Based Protein Sources · Protein Timing · How Much Protein to Build Muscle
Daily Protein Intake: How Much Protein Do You Really Need Per Day?
on Mar 15 2026
Protein has become one of the most talked-about nutrients in modern nutrition.
Walk through any grocery store and you’ll see protein everywhere — shakes, snacks, powders, bars, and more.
But this raises an important question:
How much protein do you actually need each day?
The answer depends on several factors including your body weight, age, activity level, and health goals.
Whether you want to maintain muscle, support weight loss, improve endurance, or simply age well, understanding your daily protein intake can help you fuel your body more effectively.
Let’s break it down.
Why Protein Matters for Your Health
Protein is essential for nearly every function in the body. It helps:
build and repair muscle tissue
support metabolism and energy levels
maintain healthy bones and joints
produce hormones and enzymes
support immune function
Protein also plays a critical role in maintaining muscle mass as we age.
After about age 40, muscle loss begins to accelerate if it isn’t supported by adequate nutrition and activity. Ensuring sufficient protein intake can help preserve strength, mobility, and metabolic health over time.
Research from the National Institutes of Health highlights the importance of adequate protein intake for maintaining muscle mass and functional health in adults as they age:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566799/
The Minimum Recommendation for Daily Protein Intake
For many years, the official Recommended Dietary Allowance (RDA) for protein has been:
0.8 grams of protein per kilogram of body weight per day
This amount is designed to prevent protein deficiency, not necessarily to support optimal health, performance, or aging.
According to Harvard Health, many adults benefit from higher protein intake than the RDA depending on activity level and health goals:https://www.health.harvard.edu/blog/how-much-protein-do-you-need-every-day-201506188096
Daily Protein Intake by Body Weight
A more practical way to determine your protein needs is based on body weight.
General evidence-based ranges include:
Goal
Protein Recommendation
General health
0.8–1.0 g per kg body weight
Active lifestyle
1.2–1.5 g per kg
Muscle growth or heavy training
1.6–2.2 g per kg
Adults over 60
1.0–1.2 g per kg
These ranges are supported by position papers from the International Society of Sports Nutrition, which suggests higher protein intake supports muscle maintenance and recovery:https://jissn.biomedcentral.com/articles/10.1186/s12970-017-0177-8
Daily Protein Intake Calculator
Use this quick formula to estimate your needs.
Step 1: Convert Pounds to Kilograms
Weight in pounds ÷ 2.2 = weight in kilograms
Examples:
130 lb ÷ 2.2 = 59 kg
150 lb ÷ 2.2 = 68 kg
170 lb ÷ 2.2 = 77 kg
190 lb ÷ 2.2 = 86 kg
Step 2: Multiply by Your Protein Target
Use the target that best fits your goal:
0.8–1.0 g/kg for general health
1.2–1.5 g/kg for active adults
1.6–2.2 g/kg for muscle building or heavy training
1.0–1.2 g/kg for older adults focused on healthy aging
Example Calculator
If you weigh 160 lb:
160 ÷ 2.2 = 73 kg
Then:
General health: 58–73 g/day
Active lifestyle: 88–110 g/day
Muscle gain: 117–161 g/day
Many people discover they are 20–40 grams short of their protein target when they run these numbers.
Protein Needs Chart by Age and Weight
Below is a simple chart you can use as a quick reference.
General Protein Needs Chart
Body Weight
Weight in kg
General Health (0.8–1.0 g/kg)
Active Lifestyle (1.2–1.5 g/kg)
Muscle Building (1.6–2.2 g/kg)
120 lb
54 kg
43–54 g
65–81 g
86–119 g
130 lb
59 kg
47–59 g
71–89 g
94–130 g
140 lb
64 kg
51–64 g
77–96 g
102–141 g
150 lb
68 kg
54–68 g
82–102 g
109–150 g
160 lb
73 kg
58–73 g
88–110 g
117–161 g
170 lb
77 kg
62–77 g
92–116 g
123–169 g
180 lb
82 kg
65–82 g
98–123 g
131–180 g
190 lb
86 kg
69–86 g
103–129 g
138–189 g
200 lb
91 kg
73–91 g
109–137 g
146–200 g
Protein Needs by Age
Age matters too, especially when healthy aging is the goal.
Age Group
Suggested Protein Intake
18–39
0.8–1.2 g/kg depending on activity
40–59
1.0–1.4 g/kg depending on activity and muscle goals
60+
1.0–1.2 g/kg minimum, often higher if active
As we get older, the body becomes less efficient at using protein to maintain muscle. A slightly higher intake helps offset this natural change.
This is one reason many longevity-focused nutrition experts emphasize consistent protein intake throughout the day.
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The Most Common Protein Problem: Early-Day Deficiency
Interestingly, most people don’t struggle with protein at dinner.
They struggle earlier in the day.
A typical pattern might look like this:
Breakfast: 8–10 g
Lunch: 15–20 g
Dinner: 35–40 g
Research suggests protein is better utilized when distributed across meals.
A more balanced pattern might look like:
Breakfast: 25 g
Lunch: 25 g
Dinner: 30 g
Snack: 10–20 g
This supports muscle repair, stable energy levels, and better appetite regulation throughout the day.
How to Close the Protein Gap
For many people, the challenge isn’t understanding protein needs.
It’s meeting them consistently.
Whole foods remain the foundation of a healthy diet, including:
eggs
yogurt
fish
legumes
tofu and tempeh
nuts and seeds
But busy schedules, travel, and long workdays can make consistent nutrition difficult.
That’s where convenient options can help.
A clean plant-based protein bar can be a simple way to add protein between meals and close the gap when whole foods aren’t available.
Instead of replacing meals, this option can serve as a practical tool for consistency.
Small habits repeated daily tend to matter far more than perfect nutrition once in a while
A Simple Example of Closing the Gap
If your target is 90-100 grams of protein per day, your day might look like this:
BreakfastSmoothie with plant protein and berries → 25 g
LunchSalad with tofu, lentils, or lean protein → 30 g
SnackProtein bar → 10–15 g
DinnerFish, legumes, or another protein-rich meal → 30 g
Total: 95–100 g
Much easier than trying to make up the entire gap at dinner.
The Bottom Line
Your ideal daily protein intake depends on your body, lifestyle, and goals.
But for many adults focused on long-term health, a helpful guideline is:
1.0–1.5 grams of protein per kilogram of body weight per day
That level supports:
• muscle maintenance• steady energy• metabolic health• healthy aging
And when protein is spread throughout the day, it becomes much easier for your body to use it effectively.
The goal isn’t perfection.
It’s building consistent habits that support your health over time.
Frequently Asked Questions
How much protein should I eat per day?
For many adults, 1.0–1.5 g/kg of body weight is a practical and effective range depending on activity level and goals.
Do older adults need more protein?
Yes. Research suggests older adults benefit from at least 1.0–1.2 g/kg to help maintain muscle and physical function.
Is it better to spread protein throughout the day?
Yes. Protein is generally better utilized when distributed across meals rather than concentrated in one meal.
What if I struggle to reach my protein target?
Focus on improving breakfast and lunch first. Then add convenient options like smoothies, yogurt, or a clean plant-based protein bar to close the remaining gap.
Looking for more? Explore our nutrition guides: Protein Needs After 40 · How to Increase Protein Intake · Best Plant-Based Protein Sources · Protein Timing · How Much Protein to Build Muscle
Resources
Harvard Health:https://www.health.harvard.edu/blog/how-much-protein-do-you-need-every-day-201506188096
NIH article on protein and healthy aging:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6566799/
International Society of Sports Nutrition position stand:https://jissn.biomedcentral.com/articles/10.1186/s12970-017-0177-8