Protein Deficiency: 10 Hidden Ways It Can Affect Your Bones, Brain, Hormones and Long-Term Health
Main keyword: How much protein do older adults need?
Supporting keywords: Protein requirements after 60, protein for muscle health, healthy ageing, preventing muscle loss, high-protein foods for seniors.
As we grow older, maintaining muscle strength becomes increasingly important. Have you noticed that some older adults gradually become weaker, find it harder to climb stairs, or struggle to carry groceries?
Ageing naturally brings changes to our muscles. We may gradually lose muscle mass and strength, particularly when we are physically inactive or do not consume enough nutrients.
One important nutrient deserves more attention: protein.
Protein helps maintain and repair muscles, supports the immune system and contributes to the body's ability to recover from injuries and illness.
But how much protein do we really need after the age of 50, 60 or 70? Is the standard recommendation for younger adults enough?
Let's explore the science and practical ways to get enough protein through everyday foods.
Protein is made up of amino acids, which are essential building blocks for the body's tissues.
As we get older, our muscles become less responsive to the protein we consume. This means older adults may need to pay greater attention to both the amount and quality of protein in their diets.
Several factors contribute to muscle loss:
Reduced muscle protein synthesis: The body may become less efficient at using dietary protein to build and repair muscle.
Physical inactivity: Less walking, lifting and resistance exercise can accelerate muscle loss.
Reduced appetite: Some older adults eat smaller meals and may not obtain sufficient protein.
Illness and recovery: Infections, injuries and certain chronic conditions can increase nutritional requirements.
Age-related loss of muscle mass and strength is associated with a condition called sarcopenia.
Sarcopenia can affect balance, mobility and the ability to perform everyday activities. Adequate protein intake combined with regular physical activity can help protect muscle health.
For healthy older adults, several expert recommendations suggest approximately 1.0–1.2 grams of protein per kilogram of body weight per day.
This is higher than the commonly quoted adult reference of approximately 0.8 grams per kilogram.
Here is a simple calculation:
Body weight | Daily protein target |
|---|---|
50 kg | 50–60 g |
55 kg | 55–66 g |
60 kg | 60–72 g |
65 kg | 65–78 g |
70 kg | 70–84 g |
75 kg | 75–90 g |
80 kg | 80–96 g |
These figures are general estimates for healthy older adults, not individual prescriptions.
The European Society for Clinical Nutrition and Metabolism (ESPEN) and other expert groups support higher protein intake for many older adults to help preserve muscle mass and physical function.
What about people with illness or frailty?
Some older adults with acute or chronic illness, malnutrition or increased nutritional needs may require approximately 1.2–1.5 grams per kilogram daily. However, this should be assessed by a healthcare professional.
You do not necessarily need expensive protein powders or special supplements to meet your daily requirements.
Many affordable, familiar foods provide good amounts of protein.
Here are some practical choices:
Food | Approximate protein |
|---|---|
1 large egg | 6–7 g |
100 g cooked fish | 20–25 g |
100 g cooked chicken | 25–30 g |
100 g cooked tempeh | 18–20 g |
100 g firm tofu | 8–15 g |
250 ml milk | 8 g |
100 g cooked lentils | 9 g |
100 g cooked chickpeas | 9 g |
Values are approximate and vary with food variety and preparation.
For Malaysian households, good choices include:
Fish such as ikan kembung, tenggiri and salmon.
Eggs prepared with minimal added oil.
Tofu and tempeh.
Chicken without excessive skin and fat.
Beans, dhal and lentils.
Milk and plain yoghurt.
Plant-based protein is also valuable. Combining different plant protein sources throughout the day can help provide a variety of essential amino acids.
Yes. Instead of consuming most of your protein at dinner, try to distribute it across breakfast, lunch and dinner.
Older muscles may benefit from receiving sufficient protein at several meals rather than relying on one large serving.
For example, someone with a daily target of 75 grams could organise meals like this:
A practical daily protein plan:
Breakfast:2 eggs, wholemeal toast and a glass of milk,25 g
Lunch: Steamed fish, tofu and vegetables with rice,30 g
Dinner: Chicken, vegetables and a balanced serving of rice,20 g
This is an illustrative meal plan. Actual protein content depends on serving sizes and ingredients.
Some expert guidance suggests aiming for roughly 25–30 grams at each main meal, although individual needs vary.
Protein is important, but eating more protein alone is not enough.
Muscles also need regular physical stimulation to remain strong.
Combining adequate protein intake with appropriate resistance exercises can help maintain muscle mass and strength.
Examples of simple activities include:
Walking regularly.
Standing up and sitting down from a sturdy chair.
Gentle wall push-ups.
Light resistance-band exercises.
Lifting light weights according to your ability.
Start slowly and increase activity gradually. Older adults with mobility problems or existing medical conditions should seek professional advice before beginning a new exercise programme.
The combination of nutrition and exercise is particularly important in preventing or managing age-related muscle decline.
Not necessarily.
Most people can obtain sufficient protein from ordinary foods when their diets are well planned.
Protein supplements may be useful for people who:
Have a poor appetite.
Struggle to eat enough food.
Have difficulty chewing or swallowing.
Are recovering from illness or surgery.
Have increased nutritional requirements.
However, supplements should not automatically replace balanced meals.
Before taking protein powders or high-protein nutritional drinks, consider your existing diet, medical conditions and kidney function. A dietitian or doctor can help determine whether supplementation is appropriate.
More protein does not automatically mean better health.
People with healthy kidney function may tolerate the protein amounts commonly recommended for older adults. However, individuals with chronic kidney disease may need a different protein target.
In particular, people with advanced kidney disease who are not receiving dialysis may need to limit protein intake under medical supervision.
Other considerations include:
Avoid relying excessively on processed meats.
Choose fish, eggs, poultry, tofu and beans more frequently.
Maintain adequate fibre intake.
Drink sufficient water unless fluid restriction has been prescribed.
Maintain a balanced diet rather than focusing on protein alone.
If you have kidney disease, diabetes with kidney complications or another chronic condition, consult your healthcare professional before significantly increasing protein intake.
Inadequate protein intake over time may contribute to muscle loss and poor nutritional status.
Some warning signs include:
Gradual loss of muscle strength.
Difficulty climbing stairs or getting up from a chair.
Unintentional weight loss.
Reduced physical endurance.
Slow recovery after illness or injury.
Feeling increasingly weak during everyday activities.
These symptoms can have many causes and do not necessarily mean protein deficiency. If you experience persistent weakness or unexplained weight loss, seek medical advice.
You do not need to make dramatic changes to your eating habits.
Try these practical suggestions:
Include eggs, milk or yoghurt at breakfast.
Add fish, chicken, tofu or tempeh to your main meals.
Include beans, dhal or lentils regularly.
Choose nutritious snacks instead of relying on biscuits and sugary drinks.
Avoid skipping meals, particularly if your appetite is already declining.
Combine a balanced diet with regular physical activity.
Small, consistent improvements can make a meaningful difference over time.
1. Do people over 60 need more protein than younger adults?
Many older adults benefit from higher protein intake to help maintain muscle mass and strength. Expert recommendations commonly suggest 1.0–1.2 grams per kilogram of body weight daily for healthy older adults.
2. Is eating two eggs every day enough protein?
Two large eggs provide approximately 12–14 grams of protein. This is a useful contribution, but most older adults need additional protein from other foods throughout the day.
3. Is plant protein sufficient for older adults?
Yes. Tofu, tempeh, beans, lentils and soy products are valuable protein sources. A varied plant-based diet can provide the essential amino acids needed by the body.
4. Should older adults drink protein shakes every day?
Not necessarily. People who meet their nutritional requirements through ordinary foods generally do not need additional protein supplements.
5. Does protein help prevent age-related muscle loss?
Adequate protein supports muscle maintenance and repair. Combined with resistance exercise, it can help reduce age-related muscle loss and maintain physical function.
Ageing is inevitable, but losing strength and independence should not simply be accepted as an unavoidable part of getting older.
Protein plays an important role in maintaining muscle mass, supporting recovery and helping us remain physically active.
As we grow older, paying attention to our daily protein intake becomes increasingly important. Include quality protein sources in your meals, remain physically active and maintain a balanced diet.
Remember, the goal is not simply to live longer, but to remain stronger, healthier and more independent for as long as possible.
Healthy ageing begins with the choices we make every day.
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