Ask five people how much protein you need in a day and you will get five numbers, most of them either a shrug or a gym slogan. The real answer is not complicated, but it does have two parts the slogans skip: a baseline that applies to everyone, and a higher target that kicks in as you age. Get those two numbers, hit them across the day rather than at one meal, and most of the confusion disappears.

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Momentous Grass-Fed Whey Protein Isolate

When food alone does not reach your daily target, a certified whey is the cleanest way to close the gap. This one is NSF Certified for Sport on every batch, and whey is the type Harvard reports is particularly effective for building muscle in older adults. Food first, powder to fill the shortfall.

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How Much Protein You Actually Need, By The Numbers

Who	Daily target	Source	Notes
General baseline	0.8 to 1 gram per kilogram of body weight	Cleveland Clinic	The common starting point; a floor, not a goal
Healthy older adults	About 1.2 grams per kilogram of body weight	Harvard Health	To counter age-related muscle loss
RDA reference point	0.36 grams per pound (about 60 g for a 165-lb adult)	Harvard Health	The minimum to prevent deficiency
Upper end	Above about 0.907 g per pound (~150 g for 165 lb)	Harvard Health	Can dehydrate or strain compromised kidneys
Kidney disease	Often kept on the lower end	Cleveland Clinic	Set the target with your doctor

Figures locked at build and verified against Cleveland Clinic, Harvard Health, and Harvard Health, fetched live.

Start with the baseline, then adjust for age

Cleveland Clinic gives the common starting point plainly: 0.8 to 1 gram of protein per kilogram of body weight each day. Convert your weight to kilograms by dividing pounds by 2.2, then multiply. For a 170-pound person, that is about 77 kilograms and roughly 62 grams at the low end. It also offers a second method, aiming for about 25% of your daily calories from protein.

That baseline is a floor, not a ceiling, and age moves it up. Harvard Health reports that to counter lost muscle mass, healthy older adults need about 1.2 grams of protein for every kilogram of body weight per day. The reason is muscle: Cleveland Clinic notes muscle mass starts to decline as early as your 30s and 40s and can fade faster around 65, a process called sarcopenia, and getting more than the average recommendation helps hold that muscle in later years.

Most older adults are quietly missing it

The target is one thing; hitting it is another. Harvard Health cites a study of nearly 12,000 adults aged 51 and older in which about 46% did not meet daily protein recommendations, and notes that lower protein intake makes building muscle harder. This is the gap the number is meant to close, and for most people it is a breakfast-and-lunch problem, not a dinner one.

Why these criteria

Spread beats stacking

Harvard Health reports experts recommend spreading protein across the day, with a good source at each meal, rather than loading it all into dinner.

Whole food first

Harvard Health says the best source of protein is whole foods, and a supplement is for older adults who cannot get enough through food alone.

Whey is the effective type

Harvard Health notes whey appears particularly effective for building muscle in older adults, more so than plant-based proteins or casein.

Read the label

Harvard Health notes powders are loosely regulated and added sugar varies by brand, as much as 23 grams a scoop. Certification and the sugar line matter.

The honest limitation, stated up front

A powder is a convenience, not a requirement, and we will not pretend otherwise. Harvard Health is direct that the best source of protein is whole foods, and that protein powders are classified as dietary supplements and are not regulated as strictly as food or medicine. It also flags that whey and casein powders can cause digestive discomfort in some people, and that sugar content varies widely by brand. If eggs, dairy, fish, beans and lean meat already get you to your number, you do not need the tub. The powder earns its place only on the days food falls short, which for many older adults is most days.

Food first, and lift while you are at it.

Protein is only half the equation. Harvard Health reports that protein combined with a regimen of heavy resistance exercise leads to the most improvement in muscle mass and strength in healthy older adults. Hit your number across the day and add two resistance sessions a week before you judge whether anything is missing.

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Why not just buy the cheapest tub?

Often you can, and if it is a clean whey isolate with independent certification at a lower price, that is a fair choice. The problem on the bargain shelf is what you cannot see. Harvard Health points out powders are not regulated as strictly as food, and that sugar can reach 23 grams a scoop in some brands. A cheap certified isolate is reasonable. A cheap uncertified one with a hidden sugar load is a different product than the label implies.

How much protein do I actually need?

Start with Cleveland Clinic's 0.8 to 1 gram per kilogram of body weight. If you are an older adult, Harvard Health suggests closer to 1.2 grams per kilogram to counter muscle loss. Multiply your weight in kilograms by both to get your range.

Can I eat too much protein?

Yes. Harvard Health notes very high intakes, above about 0.907 grams per pound or roughly 150 grams a day for a 165-pound person, can cause dehydration or aggravate kidney problems in people with pre-existing kidney conditions. More is not automatically better.

Is powder as good as food?

Harvard Health says whole foods are the best source, with powders useful for people who cannot get enough through food. Among powders, it notes whey appears particularly effective for muscle in older adults. Use it to fill the gap, not to replace meals.

When should I eat protein?

Harvard Health says timing matters and recommends spreading protein across the day with a good source at each meal, rather than loading it into one large evening meal.

Does more protein help if I do not exercise?

Less than you would hope. Harvard Health reports the most improvement in muscle mass and strength comes from protein plus heavy resistance exercise together. Protein without training is the weaker half.

📋 Your Coach's Recommendations

Set your two numbers.

Weight in kilograms times 1.0 for the floor, times 1.2 if you are an older adult. Write the range where you plan meals.

Spread it, and put protein in breakfast.

Harvard recommends a good source at every meal. Most people are short at breakfast and lunch, not dinner. Fix the front of the day first.

Fill the remaining gap with a certified whey.

Food first. On days you fall short, a NSF Certified for Sport whey isolate is the clean way to close the difference. Check the sugar line before the claims.

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Sources

Every claim on this page was verified against these Tier-1 sources, fetched live at build:
Harvard Health Publishing · Muscle loss and protein needs in older adults
Harvard Health Publishing · The power of protein
Cleveland Clinic · How Much Protein Do You Need? And How To Get It
Momentous product specification and Certificate of Analysis pages: Grass-Fed Whey Protein Isolate and Certificates of Analysis

By the Ageless Coach Editorial Team · July 21, 2026 · Sources: Harvard Health Publishing, Cleveland Clinic, and Momentous manufacturer disclosures

Affiliate disclosure: This article contains affiliate links. If you buy through one, Ageless Coach may earn a commission at no additional cost to you. Our pick was made independently and set before any partnership. How we choose partners.

This content is educational and is not a substitute for professional medical advice, diagnosis, or treatment. 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. Always consult your physician before making changes to your health routine.

How Much Protein You Actually Need Daily

Momentous Grass-Fed Whey Protein Isolate

Start with the baseline, then adjust for age

Most older adults are quietly missing it

Why these criteria

The honest limitation, stated up front

Take the Daily Protein Plan with you

Why not just buy the cheapest tub?

Take the Daily Protein Plan with you

Where should we send it?

It's on the way

Sources

Your Coach's Plan

How Much Protein You Actually Need Daily

Momentous Grass-Fed Whey Protein Isolate

Start with the baseline, then adjust for age

Most older adults are quietly missing it

Why these criteria

The honest limitation, stated up front

Take the Daily Protein Plan with you

Why not just buy the cheapest tub?

Take the Daily Protein Plan with you

Where should we send it?

It's on the way

Sources

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