Fueling Your Fight: How Diet Can Support Myeloma Treatment

When you're living with multiple myeloma, food can suddenly become much more complicated than deciding what's for dinner. Patients often wonder whether there are foods they should eat, foods they should avoid, or a special diet that might slow the disease.

Unfortunately, myeloma also attracts its share of claims about restrictive diets, supplements, and foods said to "starve" or cure cancer. There is currently no diet proven to cure multiple myeloma. Instead, nutrition should be viewed as part of supportive care—helping your body maintain strength, manage treatment side effects, protect overall health, and recover.

And during treatment, the "perfect" diet isn't always realistic. Sometimes the most important nutritional goal is simply finding foods you can tolerate and getting enough calories, protein, and fluids.

Build Your Diet Around Balance

For most people with myeloma, the foundation is similar to that recommended for the general population: a varied diet containing vegetables and fruits, whole grains and other nutritious carbohydrates, protein-rich foods, and healthy fats.

However, there isn't one myeloma diet that works for everyone.

Kidney problems, diabetes, weight changes, gastrointestinal symptoms, treatment side effects, infections, and other medical conditions can dramatically change nutritional needs. That's why advice from your oncology team or an oncology dietitian can be especially valuable.

Carbohydrates: Your Body Needs Fuel

Carbohydrates sometimes get an undeservedly bad reputation in discussions about cancer. Claims that eliminating carbohydrates or sugar can "starve cancer" oversimplify how the human body works.

Carbohydrates are an important source of energy.

When you can tolerate them, choose nutrient-rich options such as whole-grain bread and pasta, brown rice, oatmeal, potatoes, beans, fruits, and vegetables.

Higher-fiber foods can also support digestive health and help you feel satisfied longer. However, treatment-related diarrhea, constipation, nausea, or mouth sores may temporarily make some high-fiber foods difficult to tolerate. Your needs may change from one treatment cycle to another.

Protein: Helping Your Body Repair and Recover

Protein is particularly important during cancer treatment because your body uses it to maintain muscle and repair tissues.

Good sources include fish, poultry, eggs, lean meats, beans, lentils, dairy products, soy foods, nuts, and seeds.

If your appetite is poor, adding protein to foods you're already able to eat can help. Eggs, yogurt, nut or seed butters, cheese, smoothies, or other protein-rich snacks can provide nutrition without requiring a large meal.

People with significant kidney impairment may need individualized recommendations regarding protein intake, so don't drastically increase protein without discussing it with your healthcare team.

Fill Your Plate With Color

Fruits and vegetables provide vitamins, minerals, fiber, and a wide range of naturally occurring plant compounds.

Instead of searching for one supposed cancer-fighting "superfood," concentrate on variety. Different colors generally represent different nutrients and plant compounds, so mixing things up is more useful than relying heavily on one particular food.

Fresh, frozen, and canned fruits and vegetables can all be nutritious choices.

Food safety may become especially important when your immune system is significantly suppressed. Wash produce thoroughly and follow your care team's recommendations regarding foods to avoid during periods of severe immunosuppression.

Don't Forget Bone Health

Because multiple myeloma can damage bones, bone health is an important part of overall care.

Dairy foods such as milk, yogurt, and cheese provide calcium, protein, and other nutrients. Fortified nondairy alternatives can also be useful if you don't consume dairy.

However, more calcium isn't automatically better for someone with myeloma.

Myeloma-related bone destruction can sometimes cause dangerously high calcium levels in the blood. Kidney problems can further complicate calcium and vitamin D needs.

Before taking calcium or vitamin D supplements, ask your healthcare team whether they're appropriate for you.

Choose Healthy Fats

Fat is an essential nutrient and an important source of energy.

When possible, emphasize unsaturated fats from foods such as olive oil, nuts, seeds, avocados, and fish while limiting excessive amounts of saturated fat and heavily processed foods.

But there is an important exception: if you're losing weight or struggling to eat during treatment, adding calorie-dense foods may be exactly what your body needs.

Nutrition during cancer treatment isn't always about eating fewer calories. Sometimes the priority is preventing malnutrition and maintaining strength.

Be Careful With Supplements

The supplement aisle can be particularly confusing for cancer patients.

Products are frequently marketed as "immune boosting," "detoxifying," or even cancer fighting. Those claims don't necessarily mean a product is safe or effective for someone undergoing myeloma treatment.

Herbal products, vitamins, concentrated extracts, and dietary supplements can interact with medications or create additional problems for people with impaired kidney or liver function.

Laboratory research showing that a substance affects cancer cells is also not the same as proving that taking the supplement treats cancer in humans.

Curcumin, green tea extracts, high-dose vitamins, and other supplements are frequently discussed within cancer communities. Some are being researched, but they should not replace established myeloma treatments.

Always tell your hematologist or pharmacist everything you're taking—including vitamins, powders, herbs, teas, and supplements.

"Natural" does not automatically mean harmless.

Hydration Matters—Especially for the Kidneys

Staying adequately hydrated is often particularly important in myeloma because abnormal proteins produced by myeloma cells can damage the kidneys.

Water is generally an excellent choice, but soups, milk, smoothies, and other beverages can also contribute to fluid intake.

How much you need depends on your individual circumstances.

Someone with normal kidney and heart function may receive very different advice from someone with significant kidney disease, heart problems, swelling, or who requires dialysis. Follow your healthcare team's recommendations rather than forcing yourself to meet an arbitrary number of glasses each day.

Alcohol should also be discussed with your healthcare provider because it may interact with medications, worsen dehydration, or increase side effects such as dizziness and drowsiness.

When Treatment Makes Eating Difficult

Knowing what constitutes a healthy diet doesn't help much when chemotherapy makes everything taste like metal.

Cancer and its treatments can cause loss of appetite, nausea, vomiting, diarrhea, constipation, dry mouth, mouth sores, altered taste, fatigue, and difficulty swallowing. High-dose chemotherapy and stem cell transplantation can make eating particularly challenging.

During these periods, the rules change.

Instead of worrying about whether every meal is perfectly balanced, concentrate on getting enough nutrition and fluids in whatever form you can tolerate.

Small, frequent meals may be easier than three large meals. Soft or cool foods may help when your mouth is sore. Smoothies, soups, yogurt, eggs, nutritional drinks, or other calorie- and protein-dense foods can be useful when appetite is limited.

If food tastes metallic, experimenting with different utensils, temperatures, seasonings, or foods may help.

Most importantly, tell your care team when you're struggling to eat or drink. Persistent weight loss, dehydration, vomiting, diarrhea, or mouth sores shouldn't simply be endured.

When Treatment Causes Weight Gain

Not everyone loses weight during cancer treatment.

Steroids such as dexamethasone can increase appetite, alter blood sugar, contribute to fluid retention, and change how the body stores fat. Reduced physical activity and emotional eating can contribute as well.

If you gain weight during treatment, don't respond with an extreme diet.

Talk with your healthcare team about whether weight loss is appropriate while you're receiving treatment. A registered dietitian—particularly one experienced in oncology—can help you develop realistic strategies that protect muscle and nutritional status while addressing unwanted weight gain.

Small, sustainable changes are generally more useful than restrictive diets.

Food Is Support, Not a Cure

Nutrition plays an important role in living with multiple myeloma, but food shouldn't become another source of fear.

There is no single "myeloma diet," no superfood capable of eliminating the disease, and no supplement that can substitute for appropriate medical treatment.

Instead, think of nutrition as another tool in your treatment toolbox.

Eat for strength. Eat for energy. Eat to support recovery. And when treatment makes eating difficult, eat what you can.

Your nutritional needs may change throughout your myeloma journey. What works during remission may not work during chemotherapy, transplantation, or relapse. Kidney function, medications, blood counts, weight, appetite, and side effects all matter.

Work with your healthcare team, ask for an oncology dietitian when you need one, and be wary of anyone promising that a particular food, supplement, or restrictive diet can cure your cancer.

The goal isn't dietary perfection.

The goal is giving your body the support it needs while you fight the disease.

Stay Strong: The Power of Exercise While Living with Multiple Myeloma

When you're living with multiple myeloma, exercise may be the last thing on your mind—especially on days when fatigue, pain, neuropathy, or treatment side effects make simply getting through the day feel like a workout.

But movement matters.

Regular physical activity can support cardiovascular health, muscle strength, mobility, balance, emotional well-being, sleep, and overall quality of life. Exercise also plays a role in maintaining healthy immune function and controlling inflammation.

For people living with multiple myeloma, however, exercise isn't about pushing harder or proving how strong you are.

It's about finding ways to move safely within the limits of your body.

Exercise and Your Immune System

Physical activity affects many parts of the immune system. During and after moderate exercise, immune cells circulate throughout the body, helping with normal immune surveillance. Regular activity can also help regulate inflammation and reduce stress hormones.

That doesn't mean exercise can prevent myeloma from progressing or replace treatment. Think of physical activity as one piece of supporting your overall health while living with cancer.

Consistency is generally more important than intensity.

A short walk, gentle stretching, or a few minutes of movement may be more beneficial—and more realistic—than occasionally pushing yourself through an exhausting workout.

As Dr. Joseph Mikhael, Chief Medical Officer of the International Myeloma Foundation, has explained:

“We were built to move and to exercise, and even with the diagnosis of multiple myeloma, for the vast majority of our patients, there is a way to exercise.”

The important part is finding your way to move.

Why Exercise Can Be Especially Helpful With Myeloma

Multiple myeloma and its treatments can affect nearly every aspect of physical well-being.

Fatigue can make you less active. Less activity can contribute to muscle weakness and loss of stamina, which can make everyday activities even more exhausting.

Appropriate exercise can help interrupt that cycle.

Depending on your individual health and treatment plan, regular movement may help:

• Maintain muscle strength and mobility

• Improve balance and coordination

• Reduce deconditioning

• Support cardiovascular health

• Improve sleep

• Reduce stress and anxiety

• Improve mood

• Support healthy blood sugar control

• Maintain independence with everyday activities

• Reduce some aspects of cancer-related fatigue

• Support overall quality of life

Exercise can also help maintain bone and muscle health, but this requires special consideration in multiple myeloma.

Myeloma Bones Require Extra Care

Exercise recommendations for someone with multiple myeloma aren't necessarily the same as recommendations for a healthy person.

Myeloma can weaken bones and cause lytic lesions, fractures, spinal problems, or other skeletal complications. That means certain exercises may be unsafe depending on where your disease has affected your bones.

High-impact activities, contact sports, jumping, twisting movements, and heavy lifting may be inappropriate for some patients.

If you have bone lesions, osteoporosis, previous fractures, spinal involvement, or significant bone pain, talk with your healthcare team before beginning resistance or weight-bearing exercises. A physical therapist familiar with cancer or myeloma can be particularly helpful in determining which movements are safe.

The goal isn't to avoid movement.

It's to find safe movement.

Don't Forget About Neuropathy

Peripheral neuropathy is another consideration for many myeloma patients.

Numbness, tingling, weakness, or decreased sensation in your feet can affect your balance and increase your risk of falling.

If neuropathy affects your feet or legs, be especially cautious with exercises that require significant balance or involve slippery or uneven surfaces.

You may feel safer exercising near a sturdy chair, railing, or wall. Depending on your abilities, seated exercises may also provide an effective alternative.

There's nothing wrong with modifying an exercise.

Safe exercise is better than impressive exercise.

Exercise May Help With Treatment-Related Health Risks

Some medications used during myeloma treatment, particularly corticosteroids, can affect blood sugar, muscle strength, bone health, sleep, appetite, and weight.

Regular physical activity can improve insulin sensitivity and help the body regulate blood glucose. It can also support cardiovascular health and help preserve muscle.

People with multiple myeloma may also have an increased risk of venous thromboembolism (VTE), particularly when taking certain medications or when other risk factors are present.

Regular movement can support circulation and reduce prolonged periods of inactivity. However, exercise does not replace medications or other measures your healthcare team may prescribe to prevent blood clots.

If you develop sudden swelling, warmth, redness, or pain in an arm or leg—or sudden shortness of breath or chest pain—seek medical attention promptly rather than attempting to exercise through it.

Exercise Can Help Your Mind, Too

The benefits of movement aren't limited to your muscles.

Living with an incurable cancer can bring anxiety, depression, fear of progression, uncertainty, and enormous emotional stress.

Physical activity can provide a mental break from cancer.

It may help improve mood, reduce stress, promote better sleep, and give you something positive to focus on that isn't a lab result, appointment, medication, or treatment.

And exercise doesn't have to happen in a gym to count.

Walking your dog counts.

Gardening counts.

Stretching while watching television counts.

Dancing around your kitchen counts.

Movement is movement.

Finding an Activity That Works for You

There is no perfect myeloma workout.

Your ideal activity depends on your bone health, treatment status, blood counts, neuropathy, balance, cardiovascular health, fatigue level, and overall fitness.

Some options to discuss with your healthcare team include:

Walking

Walking is accessible, requires little equipment, and can easily be adjusted to your energy level.

You don't have to begin with 30 minutes.

Start with five or ten if that's what your body can manage.

Swimming or Water Exercise

Water-based exercise can provide cardiovascular activity while reducing stress on the joints.

However, patients with compromised immune systems, central lines, wounds, or certain treatment-related restrictions should ask their healthcare team whether swimming or public pools are appropriate.

Yoga and Gentle Stretching

Yoga and stretching can help maintain flexibility, balance, and mobility while providing relaxation and stress relief.

Some traditional yoga positions may need to be modified for people with spinal involvement, bone lesions, fractures, or balance problems.

Tai Chi

Tai Chi combines slow, controlled movements with balance, breathing, and concentration. It can be a gentle way to stay active while also supporting relaxation.

Resistance Training

Light resistance exercises may help preserve muscle strength.

Resistance bands, light weights, body-weight exercises, or other equipment may be appropriate for some patients—but resistance training should be individualized when myeloma has affected the bones.

Don't assume that "light" automatically means safe. Where your bone lesions are located matters.

Start Small

One of the biggest mistakes people make when returning to exercise is trying to do too much too quickly.

Your body has been through a lot.

Start slowly and build gradually.

You might begin with:

5 minutes of walking.

Then 10.

Then perhaps 15.

Your goal doesn't have to be running a marathon. Your goal may simply be walking around the block without needing to stop.

That's progress.

Pay attention to how you feel during exercise and afterward. If an activity leaves you completely depleted for the rest of the day or several days afterward, you may have pushed beyond what your body currently tolerates.

Know When to Stop

Exercise shouldn't mean ignoring warning signs.

Stop exercising and contact your healthcare team if you experience unusual or severe symptoms such as significant pain, dizziness, fainting, unusual shortness of breath, chest pain, or new weakness.

You may also need to modify or temporarily avoid exercise when you have a fever, infection, significant anemia, very low platelet counts, dehydration, severe treatment side effects, or other medical complications.

Your healthcare team can help you determine when it's safe to resume activity.

Hydration, Nutrition, Sleep, and Recovery Matter Too

Exercise is only one piece of maintaining your health.

Your body also needs adequate nutrition, hydration, sleep, and recovery.

Drink enough fluids based on the recommendations of your healthcare team, particularly if kidney function or medications affect how much fluid is appropriate for you.

Try to eat a balanced diet that provides adequate protein and nutrients to support muscle and overall health.

And don't underestimate sleep.

Recovery is part of exercise—not something separate from it.

Some Days, Rest Is the Exercise Plan

Living with multiple myeloma means your energy level may change dramatically from one day to another.

Yesterday you may have walked two miles.

Today you may need a nap after taking a shower.

That doesn't mean you've failed.

Cancer-related fatigue is real, and treatment can take an enormous toll on your body.

Listen to it.

There will be days to move and days to rest.

The goal isn't perfection. It isn't a certain number of steps, miles, repetitions, or minutes.

It's maintaining as much strength, mobility, independence, and quality of life as your individual circumstances allow.

Multiple myeloma may change how you exercise.

It doesn't necessarily mean you have to stop moving.

Start where you are.
Move in ways that are safe for you.
Rest when your body asks you to.
And celebrate what your body can still do.

---

Medical Disclaimer: This information is for educational purposes only and is not a substitute for professional medical advice. Because multiple myeloma can affect the bones, kidneys, blood counts, nerves, and other parts of the body, speak with your oncologist, myeloma specialist, physical therapist, or other healthcare professional before beginning or changing an exercise program.

The Silent Intruder: How Multiple Myeloma Can Affect the Body

Multiple myeloma, often simply called myeloma, is a cancer of plasma cells that develops in the bone marrow. Although it begins in one type of blood cell, its effects can reach far beyond the marrow. Bones, kidneys, blood cells, the immune system, nerves, and other organs can all be affected.

That is part of what makes myeloma such a complicated disease. Two people with the same diagnosis may experience it very differently. Some develop significant bone disease, while others first show signs of kidney problems, anemia, frequent infections, or abnormal bloodwork.

Understanding what myeloma can do to the body isn't meant to create fear. It can help patients recognize symptoms, understand why certain tests are performed, and have more informed conversations with their healthcare team.

The Impact on Bones

Bone damage is one of the best-known complications of multiple myeloma.

Normally, our bones are constantly being remodeled. Old bone is broken down by cells called osteoclasts, while new bone is created by osteoblasts. Myeloma can disrupt this carefully balanced process, increasing bone breakdown while interfering with the body's ability to rebuild it.

The result can be lytic lesions—areas where bone has been weakened or destroyed. These lesions commonly occur in the spine, skull, ribs, pelvis, and other bones containing active marrow.

Bone involvement may cause persistent pain, fractures from relatively minor trauma, collapsed vertebrae, loss of height, and mobility problems.

As bone breaks down, calcium may also be released into the bloodstream, causing hypercalcemia. High calcium levels can cause symptoms including excessive thirst, frequent urination, constipation, weakness, confusion, and kidney problems.

Effects on the Kidneys

Kidney problems can sometimes be one of the first clues that something is wrong.

Myeloma cells may produce abnormal immunoglobulins or portions of them called light chains. When excessive amounts of these proteins pass through the kidneys, they can injure the delicate structures responsible for filtering the blood.

Kidney function may also be affected by dehydration, high calcium levels, infections, certain medications, and other complications.

Damage ranges from mild impairment to acute kidney injury or, in severe cases, kidney failure requiring dialysis. Fortunately, kidney function can sometimes improve when myeloma is brought under control and contributing problems are treated quickly.

Blood and the Immune System

Healthy bone marrow is essentially a blood-cell factory. As myeloma cells accumulate, they can crowd out normal blood-forming cells.

One common consequence is anemia, or too few healthy red blood cells. Anemia can contribute to fatigue, weakness, dizziness, shortness of breath, and reduced stamina.

Platelet and white blood cell counts can also become low in some patients, either because of the disease itself or its treatment.

Myeloma creates another unusual problem: although malignant plasma cells may produce large quantities of an abnormal antibody or antibody fragment, production of the normal antibodies needed to fight infection can decrease.

That leaves many people with myeloma particularly vulnerable to infections. Infection prevention, vaccinations when appropriate, prompt evaluation of symptoms, and careful monitoring therefore become important parts of myeloma care.

The Spine and Nervous System

When myeloma weakens the vertebrae, a vertebral compression fracture can occur. In some circumstances, a tumor or damaged vertebra can place pressure on the spinal cord or surrounding nerves.

Symptoms may include severe or worsening back pain, numbness or tingling, weakness in the arms or legs, or difficulty walking.

New loss of bladder or bowel control, significant weakness, or symptoms suggesting spinal cord compression require urgent medical attention. Early treatment can be critical to preventing permanent neurological damage.

Peripheral neuropathy can also occur in people living with myeloma, although it may result from the disease, other medical conditions, or certain myeloma treatments.

The Heart and Cardiovascular System

The relationship between myeloma and cardiovascular disease is more complicated than simply saying that myeloma damages the heart.

Anemia, kidney dysfunction, infections, electrolyte abnormalities, blood clots, and certain cancer treatments can all place additional strain on the cardiovascular system.

Some patients also develop AL amyloidosis, a separate but related plasma-cell disorder in which abnormal light-chain proteins form amyloid deposits in organs. When those deposits involve the heart, they can interfere with its ability to function normally.

Because there are many possible causes of cardiovascular symptoms, new shortness of breath, swelling, chest discomfort, fainting, or persistent heart rhythm changes should be evaluated rather than automatically attributed to myeloma.

The Mouth and Jaw

Oral health deserves special attention during myeloma treatment.

Bone-strengthening medications such as bisphosphonates and denosumab can be extremely valuable for reducing skeletal complications. However, in uncommon cases, they are associated with a serious condition called medication-related osteonecrosis of the jaw (MRONJ).

This does not mean everyone taking these medications will develop jaw problems. The risk is influenced by factors including treatment duration, dental health, and invasive dental procedures.

Ideally, patients should have appropriate dental evaluation before beginning bone-modifying therapy and maintain good oral hygiene and regular dental care afterward. Patients should also make sure their dentist knows about their myeloma medications before extractions or other invasive dental work.

Treatment and Management

There has been tremendous progress in multiple myeloma treatment. Today's options extend well beyond traditional chemotherapy and may include proteasome inhibitors, immunomodulatory drugs, monoclonal antibodies, corticosteroids, targeted therapies, autologous stem cell transplantation, CAR-T cell therapy, and bispecific antibodies.

The best approach depends on many factors, including the person's age and overall health, kidney function, disease characteristics, previous treatments, cytogenetic risk, and individual goals.

Supportive care is equally important. Managing pain, protecting bones, preventing and treating infections, maintaining kidney health, treating anemia, and monitoring treatment side effects can make an enormous difference in both health and quality of life.

An autologous stem cell transplant is an important treatment for eligible patients, but it is not currently considered a guaranteed cure for multiple myeloma. It can produce deep and sometimes very long-lasting remissions.

Living With the Silent Intruder

Multiple myeloma may begin in the bone marrow, but its reach can extend throughout the body. That is why myeloma care involves much more than watching a single laboratory number.

Doctors monitor blood counts, kidney function, calcium levels, monoclonal proteins or free light chains, bones, symptoms, and other indicators to build a picture of what the disease is—or isn't—doing.

And while multiple myeloma remains generally considered a treatable but incurable blood cancer, the outlook has changed dramatically. New treatments continue to produce deeper responses and longer remissions, and researchers continue to investigate what long-term disease control—and perhaps one day cure—might look like.

Knowledge gives patients another tool in that fight. Understanding how myeloma can affect the body can make it easier to recognize changes, ask questions, advocate for appropriate care, and participate actively in treatment decisions.

The silent intruder may be complicated, but it doesn't have to remain mysterious.