Losing weight without trying is not a normal part of getting older. MedlinePlus describes unintentional weight loss as losing 10 pounds or 5% of normal body weight over 6 to 12 months or less without a known reason, and says to contact a provider when that happens. The causes range from medicines and sore teeth to depression, dementia and serious illness, and many of them can be treated once someone finds them.
When is losing weight without trying a warning sign?
MedlinePlus tells people to contact their provider if they have lost more than 10 pounds or 5% of normal body weight over 6 to 12 months or less and do not know why, or if there are other symptoms along with the weight loss. A review in American Family Physician uses the same 5% over 6 to 12 months line for adults over 65 and says it should prompt an evaluation.
The National Institute on Aging adds that sudden, unintended weight loss can be a sign of a serious medical problem, and that anyone losing weight rapidly without meaning to should see a health care professional. The same review notes that weight changes only slightly after about age 60, so a large drop is not just age.
For a person who usually weighs 160 pounds, 5% is 8 pounds. If nobody knows the starting weight, the American Family Physician review says a change in clothing size, or a relative’s estimate, can help show how much was lost. Do not wait for a number to be reached. Appetite that stays low, or a change you cannot explain, is reason enough to call the doctor.
Why does unplanned weight loss matter in older adults?
The American Family Physician review links weight loss to increased frailty, recurrent falls and worse health outcomes overall. NIA says being underweight raises the chance of problems such as osteoporosis and anemia, and can make it harder to recover from an illness or infection.
Our guides to fall prevention in NYC apartments and osteoporosis in older adults cover the related risks.
What causes an older adult to lose their appetite or stop eating?
Usually more than one thing. The American Family Physician review says non-cancer conditions are more common causes than cancer, although cancer accounts for up to one-third of cases, and no clear cause turns up in 6% to 28% of people. Only an exam can sort this out. The table lists causes named by NIA, MedlinePlus, the National Institute of Dental and Craniofacial Research (NIDCR) and that review.
| Possible cause | What the sources say | Who to ask |
|---|---|---|
| Medicines | Some medicines change taste, dry the mouth or reduce appetite (NIA) | The prescriber or pharmacist. Do not stop a medicine without talking to the provider first (MedlinePlus) |
| Teeth, gums and dentures | People with tooth or denture problems often avoid meat, fruit and vegetables (NIA) | A dentist, who can also check denture fit |
| Trouble swallowing | Food that seems to stick or is hard to swallow can have several causes, including too little saliva (NIA) | The doctor. See our swallowing problems guide |
| Dry mouth | NIDCR says it is not a normal part of aging and can make chewing, swallowing and tasting difficult; hundreds of medicines can cause it | A dentist or doctor |
| Low mood, grief and loneliness | Being unhappy can cause loss of appetite (NIA). Sadness, depression or grief can too (MedlinePlus) | The doctor. See depression in older adults and loneliness in NYC |
| Dementia | MedlinePlus lists dementia among causes of decreased appetite. NIA notes poor appetite in Alzheimer’s can come from medication, low activity or a weaker sense of taste and smell | The doctor. See memory loss causes |
| Other illnesses | MedlinePlus lists chronic liver or kidney disease, COPD, heart failure, an underactive thyroid and certain cancers | The doctor |
| Hard to shop, cook or feed oneself | NIA says Parkinson’s disease, stroke or arthritis can make cooking and feeding yourself harder, and some people cannot get out to buy food or forget to eat | The doctor, who may suggest an occupational therapist |
What should I do first if my parent is losing weight and not eating?
Start with the doctor, and arrive prepared. This is general information, not medical advice for any one person.
- Book a visit and say it plainly. Use the words “unplanned weight loss.” MedlinePlus lists what a provider will ask: how much was lost, when it began, whether it was quick or slow, whether the person is eating less or eating different foods, whether there are dental problems or mouth sores, and whether they feel sad or depressed.
- Collect weights. Write down every number you have, including past clinic readings. If the person is willing, weigh them at home on the same scale at a similar time of day and note the date. The office will use its own scale.
- Keep a food and drink diary. MedlinePlus suggests recording everything eaten and drunk for 24 hours or more.
- Bring a full medication list. Include non-prescription items and supplements. The American Family Physician review says medicines and supplements should be reviewed. See medication management for seniors.
- Mention everything else. Changes in mood, memory, mouth, swallowing or bowels all help. MedlinePlus says to call when weight loss comes with other symptoms.
- Ask what happens next. The review describes a history, physical exam and tests, and says that when the first workup finds nothing, a period of watching with follow-up is recommended.
The same review advises treating the cause and does not recommend relying on appetite-stimulating drugs or high-calorie supplements for older adults. This page does not suggest any product or medicine. Whether anything is right for a particular person is a decision for their doctor or a registered dietitian.
What helps at home when an older person has no appetite?
These ideas come from NIA and MedlinePlus. They support eating while the cause is found and do not replace the doctor visit.
- Smaller, more frequent meals. NIA suggests this for people who get full quickly, along with nutrient-dense snacks such as nuts, cheese and dried fruit, and foods with healthy fats such as avocado and peanut butter. Pick textures the person can chew and swallow comfortably.
- Favorite foods. MedlinePlus says family members should try to supply the person’s favorite foods.
- More flavor, not more salt. NIA suggests herbs, lemon juice or vinegar, and shorter cooking times so vegetables keep some crunch.
- Company at the table. NIA suggests potluck meals, cooking with a friend, or eating some meals at a nearby senior center, which also gives people company.
- Soft pieces and a calm routine. NIA’s tips for caregivers of people with Alzheimer’s suggest soft food cut small, meals at the usual times in a familiar, quiet place with the TV off, one food at a time, no rushing and no force-feeding.
Could mouth, teeth or swallowing problems be the reason?
Often, and they are easy to miss. NIA advises seeing a dentist for trouble chewing and having denture fit checked. NIDCR lists drinking water or a sugarless drink during meals among the self-care steps for dry mouth, and says to see a dentist or doctor to find out why the mouth is dry. Daily brushing, denture care and what to tell the dentist are in our oral care guide.
If food seems to get stuck, or the person coughs or avoids eating because swallowing feels wrong, tell the doctor. Our guide to swallowing problems at home covers the warning signs. Call 911 for an emergency such as choking.
Dental coverage is a common worry. Medicare.gov says Original Medicare in most cases does not pay for dentures. The New York State Department of Health says Medicaid offers an extensive dental plan that includes dentures, and that the dentist submits prior approval requests when necessary. Our dental coverage guide for New York has the details.
Where can an older New Yorker get meals and food help?
NYC Aging says it funds local case-management agencies that serve residents 60 and older. After a phone intake, a case manager visits the home to decide eligibility, and eligible people can receive home-delivered meals and nutrition counseling, among other services. Case managers do not charge for their time, but some services carry an income-based fee or a suggested contribution. To start, call Aging Connect at 212-244-6469.
For someone who can get out, older adult centers have free membership for people 60 and older, serve meals reviewed by NYC Aging nutrition staff. The city lists more than 300 centers and affiliated sites. See our guides to senior centers and free services, meal delivery for seniors in NYC and nutrition for NYC seniors.
Can a home care aide help with shopping, cooking and eating?
Yes, within the plan of care. In New York’s personal care program, Level I covers household tasks such as shopping and cooking, and Level II adds hands-on help including feeding. How many hours a person gets is set by an assessment, not promised in advance. See personal care services in NYC.
Medicare does not pay for ongoing help like this on its own; its home health aide is available only when the person also has a skilled need. See what Medicare covers for home care and what Medicaid covers.
Does Medicare or Medicaid cover nutrition help?
It depends on the service. The table uses the program pages as checked on 16 October 2026.
| Service | What the source says |
|---|---|
| Medical nutrition therapy (Part B) | For people with diabetes or kidney disease, or a kidney transplant in the last 36 months, with a doctor’s referral to a registered dietitian. 3 hours in the first calendar year, then up to 2 hours of follow-up a year. You pay nothing if you qualify |
| Yearly Wellness visit (Part B) | Includes height, weight and blood pressure, a prescription review, a cognitive assessment and an optional nutrition risk assessment. It is a prevention visit, not a routine physical |
| Home-delivered meals and senior center meals | NYC Aging case management and older adult centers, with income-based fees or suggested contributions for some services |
Medicare.gov says people with specific health concerns should book a separate appointment, so a weight loss problem belongs in a regular visit, not the Wellness visit. Nutrition therapy applies only to the conditions listed; someone with diabetes who is losing weight can ask the doctor about a referral. See our diabetes care at home guide.
Weight, mood and mealtimes: advice from our nurse director
Anna Klyauzova, RN, MSN, MPA, Director of Patient Services at ProLife Home Care, on what she sees in practice:
Small things matter more than people expect: tea together, talking about the news, looking through family photos, a short walk. I remind our home health aides that they are not just working through a task list. They are spending the day with a person who wants company.
The signs that worry me are loss of interest in things the person used to enjoy, refusing food, trouble sleeping, withdrawing and constant sadness. Aides report these to the nurse, and we ask the family to see a doctor. Depression is not a normal part of getting older.
Oral care is part of daily hygiene. A home health aide or personal care aide can help with brushing, look after removable dentures and set out supplies, as far as their training and the care plan allow. Older adults often struggle with dry mouth, dentures that don’t fit and cleaning their own teeth. Don’t put off treatment because of the cost.
We are a licensed home care agency in Brooklyn and Queens, licence #2572L001, New York State Department of Health. If you are worried about a parent who is eating less, we can talk through what daily help at home could look like, and which parts Medicaid or other programs may cover. Call (718) 232-2777 or use our contact page.
Related guides
- Constipation in Older Adults: Causes, Home Relief and When to Call a Doctor
- Dehydration in Older Adults: Signs, Risks and How to Prevent It
- Can You Die From Dementia? How Long People Live and the Final Stages
Program rules and web pages change. Everything above was checked on 16 October 2026 against medlineplus.gov, nia.nih.gov, nidcr.nih.gov, aafp.org, medicare.gov, health.ny.gov and nyc.gov. Confirm your own situation with the person’s doctor, dentist, plan or NYC Aging. This page is general information, not medical or legal advice, and it does not recommend any medicine, supplement or diet for an individual.
Frequently asked questions
Why is my elderly mother losing weight and not eating?
There is rarely a single reason. Medicines, sore teeth or poorly fitting dentures, dry mouth, trouble swallowing, low mood or loneliness, dementia and other illnesses can all reduce eating. Because some causes are serious, an older adult who is losing weight without trying should see a doctor rather than waiting.
How much weight loss is a concern in the elderly?
MedlinePlus and a review in American Family Physician both use 5% of body weight over 6 to 12 months. MedlinePlus also gives 10 pounds as a mark. Smaller or slower changes are still worth mentioning to the doctor, who decides what they mean for that person.
Is it normal for older people to eat less?
Some change is common. NIA says changes in the body can make people feel full sooner, and MedlinePlus says decreased appetite is often seen in older adults. Real weight loss is different, and the American Family Physician review says normal aging should not cause weight changes large enough to be confused with unintentional weight loss.
What can I do to help an elderly person with no appetite eat more?
NIA suggests smaller, more frequent meals, nutrient-dense snacks, better flavor without extra salt, and eating with other people. Offer favorite foods in a calm setting, and avoid forcing food. Raise the problem with the doctor, since food tips do not treat a cause.
Can dementia cause an older person to stop eating?
Yes. MedlinePlus lists dementia among causes of decreased appetite, and NIA’s caregiver tips say people with Alzheimer’s may eat poorly because of medication, low activity or reduced taste and smell. Routine, quiet meals and soft, small pieces of food can help. Tell the doctor about any change.
Could my father’s medicines be causing weight loss?
They can. NIA says some medicines change taste, dry the mouth or reduce appetite. Do not stop or change any medicine on your own. Bring the full list to the prescriber or pharmacist and ask whether any of them could be involved.
Does Medicare pay for a dietitian?
Medicare Part B covers medical nutrition therapy from a registered dietitian for people with diabetes or kidney disease, or a kidney transplant in the last 36 months, with a doctor’s referral. You pay nothing if you qualify. For other conditions, ask the doctor, the plan or 1-800-MEDICARE what applies.
