Protein Needs for Seniors — What the Evidence Says

This question used to have two answers that disagreed. It no longer does. The 2025–2030 Dietary Guidelines for Americans set a protein goal of 1.2 to 1.6 g/kg per day for the general population — at or above the 1.0 to 1.2 g/kg that geriatric expert panels have recommended for older adults since 2013. The calculator below uses 1.2 g/kg, the point where both meet.

The requirement did not move; the goal did

Look up protein in the DRI reference tables and the age bands run 19–30, 31–50, 51–70 and over 70 with the same values throughout: 56 g/day for men, 46 g/day for women, footnoted as 0.8 g of protein per kilogram of body weight. That has not changed, and it is still the RDA — the intake that covers the requirement of nearly every healthy adult, at any age.

What changed is the federal goal. The Dietary Guidelines for Americans, 2025–2030, published by HHS and USDA in January 2026, ask the general population for “1.2–1.6 grams of protein per kilogram of body weight per day, adjusting as needed based on your individual caloric requirements.” Their section on older adults adds the reason directly: some older adults “need fewer calories but still require equal or greater amounts of key nutrients such as protein.”

Fewer calories, the same or more protein. That is the whole nutritional problem of aging stated in one sentence, and it is why protein density per meal matters more after 70 than it did at 30.

What the geriatric panels said first

The PROT-AGE Study Group, convened by the European Union Geriatric Medicine Society, published its position in 2013: to help people over 65 “maintain and regain lean body mass and function,” it recommends an average daily intake at least in the range of 1.0 to 1.2 g protein per kilogram of body weight per day. Older adults who exercise are advised 1.2 g/kg or more, and those with acute or chronic illness 1.2 to 1.5 g/kg.

For years this range was ahead of American guidance, and pages like this one had to say so. It no longer is: the general federal goal now begins at 1.2 g/kg, the top of what PROT-AGE asks for healthy older adults, and runs to 1.6. If you were following PROT-AGE, you were early, not excessive.

Its reasoning is physiological and still worth reading. Older bodies show high splanchnic extraction — more of an ingested meal is taken up by the gut and liver before it reaches muscle — and a declining anabolic response to the protein that does arrive. The same dose produces less muscle protein synthesis than it would at 30. Chronic and acute disease add an inflammatory, catabolic load on top.

Your weight against all three figures

Convert first: pounds ÷ 2.205 = kilograms.

Body weight	In kilograms	RDA, 0.8 g/kg	PROT-AGE, 1.0–1.2	Federal goal, 1.2–1.6
120 lb	54.4 kg	44 g	54–65 g	65–87 g
140 lb	63.5 kg	51 g	63–76 g	76–102 g
154 lb	69.8 kg	56 g	70–84 g	84–112 g
170 lb	77.1 kg	62 g	77–93 g	93–123 g
190 lb	86.2 kg	69 g	86–103 g	103–138 g

Read across and the columns nest rather than compete: the RDA floor, then the geriatric range, then the federal goal starting where the geriatric range ends. The distance from the RDA to the top of the federal goal is roughly 40 to 70 g a day — one to two substantial servings.

Breakfast is usually where they are missing, since toast, cereal and fruit carry very little. That matters more at 75 than at 35, because a smaller appetite leaves fewer chances in the day to make it up.

The exception PROT-AGE writes into its own advice

The same paper that argues for more protein names who should not follow it: people with severe kidney disease, an estimated GFR below 30 mL/min/1.73 m² and not on dialysis, may need to limit intake instead.

NIDDK puts it in practical terms for anyone with chronic kidney disease: as the body uses protein it breaks down into waste that the kidneys clear, so some people with CKD need moderate amounts so waste does not build up in the blood — and the amount is set with a dietitian or clinician, not from a table. Dialysis flips the advice again, since treatment removes protein from the blood.

If you have kidney disease, liver disease or any condition that involves your diet, that conversation comes before any number on this page. Everything else about protein arithmetic is on the protein calculator, and the myths that attach to high intake are sorted out on too much protein side effects.

This content is informational and does not replace evaluation by a physician or a registered dietitian.