15. THE GREAT DANGER OF LOSS OF MUSCLE (“SARCOPENIA”): WITH SOME HARD WORK OFTEN REVERSIBLE (health project99+)

Summary. You need to start taking care of your muscles early on. If not, you can begin to lose 3–5% of your muscle mass every 10 years starting at the age of 30. Once you turn 60, this loss can speed up to about 10% per decade. The really good news is that muscle loss, known as sarcopenia, can almost always be reversed to a large extent! Which is a good thing as sarcopenia can be life-threatening.

Does losing muscle matter? Yes, it does so, very much—especially if you want to live a long and healthy life. For me, keeping my muscles strong has become one of the top five things to focus on! I didn’t always know how important strength training was. Lucky for me, I’ve always been active with sports, but I ignored strength and flexibility exercises like yoga. That changed once I learned about the dangers of sarcopenia. Now, I do daily exercises like push-ups, planking, balancing on one leg, and yoga. I also make sure to eat the right foods and take helpful supplements. When I am not in the mood I just take a look at the summary of risks (see point 3).

1. What is in a name?

Different terms like atrophy, myopenia, and sarcopenia are often used. I won’t go into their specific definitions, but they all generally refer to the same thing: loss of muscle. This muscle loss can be caused by illness, accidents, hormonal changes, or genetics. However, in this blog, I focus on the most common type: reduced muscle mass caused by disuse and aging.

Symptoms include a decrease in muscle mass. One limb may be smaller than the other. Legs can become thinner. Sensations like numbness, weakness, and tingling might appear in your limbs.

2. Sarcopenia = global pandemic

Up to 40% of people worldwide suffer from sarcopenia. This condition will affect more people globally. An estimated 22% of the world’s population will be over 60 years old by 2050. Older women are at greater risk of experiencing mobility issues.

3. Summary of risks

Sarcopenia poses several potential dangers and serious challenges, especially for older adults. Here are some of the key risks and issues.

1. Decreased Mobility: loss of muscle strength affects an individual’s ability to carry out daily activities. These activities include walking, climbing stairs, and getting out of a chair. Recovery from injuries will also be slower.

2. Increased Risk of Falls and Fractures: Many of us have heard stories of active 90-year-old people who fall, never fully recover, and pass away within a few months.

3. Metabolic Changes: These changes can contribute to conditions like insulin resistance and type 2 diabetes. Additionally, cardiovascular diseases and osteoporosis may also be of concern.

4. Decreased Physical Resilience: With reduced muscle mass, recovery from illnesses can be slower. Recovery from injuries or surgeries may also take longer. Additionally, the risk of complications may increase.

In short, when you have sarcopenia, you risk entering a self-reinforcing cycle of negative health outcomes. This includes reduced activity and increased weakness. Both are potentially life-threatening.

4. How to fight and prevent sarcopenia? 

A. Strength training, balancing exercises and yoga.

Food, as always, is important, and supplements can have some benefits, but physical activities are most essential. YouTube has great videos on what exercises to do, in addition to regular activities like walking, swimming, and cycling. Key exercises involve resistance training and weightlifting. Sports like yoga help you stay flexible. Or, in my case, they help me finally become flexible. Almost daily, I do 45 minutes of push-ups, planking, weightlifting, and some yoga. Maintaining balance should also be part of this routine, so I perform some exercises daily on one leg. It’s not easy at all.

B. What foods should you eat to avoid sarcopenia?

High-quality diets that are rich in fruits and vegetables are essential. Adequate protein intake, especially high in leucine, is also crucial. Hydration is the cornerstone of nutritional plans to fight sarcopenia. Nothing new, as this is general advice for almost everything health related.

C. Which supplements to take?

1. Reliable internet sources suggest that a daily dose of omega-3 oils may slow the aging process. A fair summary indicates that it may also increase the number of years spent in good health. Suggested quantities to take: 4,200 mg of omega-3s. This includes 2,700 mg of EPA and 1,200 mg of DHA. (Note: all info from the internet).

2. Proteins, particularly those with essential amino acids, are crucial. There are nine amino acids that the body does not produce itself. They are somewhat confusingly referred to as “essential” because they must come from external sources. All nine essential amino acids are important for muscle growth. These amino acids are vital for maintaining our body because they are the building blocks of protein. However, one particular essential amino acid that is often highlighted for its role in muscle protein synthesis is leucine. The quantities to take are explained in my blog on protein (see link), with the main messages being: a) it is not easy to get as much as needed, and b) the older you get, the more you need.https://shakethehealthtree.com/index.php/2025/02/25/5-power-to-the-proteins-and-also-enough-is-not-always-enough/

5. Some more info about Omega-3.

Omega-3″, often also called “omega-3 fatty acids” are a type of polyunsaturated fat (the so called ‘good fat’). These omega-3s play critical roles in maintaining heart health, supporting brain function, and reducing inflammation, among other benefits.

There are several types of Omega-3, with the most important being: EPA (Eicosapentaenoic Acid) – Found mainly in fish and seafood. DHA (Docosahexaenoic Acid) – Also found in fish and seafood and especially important for brain health. ALA (Alpha-linolenic Acid) – Found in plant sources such as flaxseeds, chia seeds, and walnuts.

The body can partially convert ALA into EPA and DHA. However, the conversion rate from ALA to EPA and DHA is very low for humans (5%). You need to eat over ½ kg of walnuts daily to get enough EPA and DHA through walnuts. Not practical. I will write a blog about Omega-3 as a supplement. The main conclusion is that most supplements are not as good as natural Omega-3s.

Time for some exercises. Lead a happy and healthy life.

Robert, your health friend

With our beloved dog Randy

5. POWER TO THE PROTEINS, AND ALSO…. ENOUGH IS NOT ALWAYS ENOUGH (health project 99+)

Dear reader,

To summarize this long post: Proteins can be a source for energy intake, but….. their main job is being ‘building blocks of life’ and working hard on hormones, enzymes, body tissues, and immunity. Latest research states that we should more or less double earlier traditional guidelines, up to 1.5 grams per kilo body weight. Which is not easy! Two side notes. 1. Do not eat farmed fish. 2. Do not get fragile when you age; exercise and eat your protein.

1. Energy first (=carbs and fats)

The three groups of macro-nutrients are the center of many discussions about nutrition. I refer of course to fats, carbs (hydro-carbonates) and proteins. Fats and carbs are your main sources for energy-intake: carbs 4 kcal per gram and fat 9 kcal per gram. Our body needs energy (average 2000 kcal daily) and carbs and fats happily and rather easily provide this. Health-wise, there is of course much more to carbs and fats. Yet, their main task is to supply energy and as such the preferred choice of your body. 

2. Building blocks first (=proteins)

Giving energy is, as mentioned, not the main job for proteins. Still, they will become an energy choice when carbs and fats are not available. During prolonged exercise or starvation, they provide 4 kcal per gram, just like carbs. Nonetheless, your body really prefers proteins for other important jobs. These include building and repairing tissues, making enzymes and hormones, and supporting immune role. They are not called ‘building blocks of life” for nothing!

3. Some Facts and Figures for those who really want to be in the know

There are 20 amino acids. Nine are “essential”, meaning that your body does not produce them and can only get them by eating. “Essential” is a confusing term but it is as it is.

All proteins are made up of long chains of amino acids linked by peptide (= chemical) bonds. The specific sequence of amino acids determines the protein’s structure and function.

The 20 amino acids are transformed into tens of thousands of proteins in your body. Actually it is more complicated. First, you eat proteins, which can be animal or plant-based. Then, your body breaks them down into amino acids. Finally, it rebuilds them into the specific proteins you need. Yes, complicated, but that is how nature often works :).

In the end, we have tens of thousands of different proteins in our body. Each one has unique structures and functions. We need all of them. The exact number can vary. However, estimates often suggest that there are over 20,000 protein-coding genes in the human genome (= genetic blueprint). These genes can produce (= synthesize) multiple different proteins through various biological processes.

4. Need to know: how many proteins per gram produce?

I love nuts and fortunately they give on average 20 grams of protein per 100 grams. Meat and chicken even more, but they are not part of my diet. Fatty fish like salmon, cod (leaner), and sardines offer 20 – 25 grams. Vegetables only give 2 grams. Fruits have less than 1 gram. Two eggs (100 grams) contain 13 grams of protein. Looking at this rough overview one sees the challenge with plant proteins. You really need to eat a lot to get enough. Vegetarians should in my opinion seriously consider taking supplements.

5. Differences between animal and plant proteins

Animal proteins are “complete.” They contain all nine essential amino acids, meaning that your body does not produce them. Common dietary sources include meat, fish, poultry, eggs, and dairy. 

Most plant proteins, on the contrary, are “incomplete.” They are missing one or more of the nine essential amino acids. There are a few exceptions like quinoa and soy. Yet, by combining plant proteins (e.g., beans and rice) you can get all the nine essential amino acids. 

Animal proteins are easier to digest for some people and come with distinct nutrients—like omega-3 from fatty fish. Plant proteins can be more difficult to digest but also comes with extra benefits, like providing the all important fiber.

High plant protein intake appears linked to lower chronic disease risks like heart disease and certain cancers. Conversely, there are links between high intake of animal proteins (especially red and processed meats) and higher chronic disease risks.

6. Risks of an overdose

Over consumption of proteins can lead to health risks. Over consumption is subjective and difficult to define as it varies per person. Still, consuming more than 2 grams of proteins per kilogram over an extended period can harm your health. How much is too much also depends on your lifestyle, health history, and protein quality. 

What I read on internet is that most risks include negative impacts on kidneys and dehydration. It also effects calcium intake which can lead to bone problems. Other risks are weight gain and heart issues, especially from excessive red and processed meat intake. 

7. My personal protein approach

On a typical day, I obtain around 65 grams of proteins from my diet. I get 20 grams from fish and 20 grams from nuts. I do not eat meat. There are 15 grams from low fat French quark and 10 grams from other sources. To reach 120+ grams, I rely on carefully chosen plant-based supplements that include all nine essential amino acids. I personally stay well below 2 grams proteins per kilogram. Fortunately, it is not easy to overdose on protein through regular diet alone; only supplements make it possible. 

For solid information on the necessity of increasing protein intake, search for Thomas deLauer on YouTube. He has almost 4 million subscribers.

Tip: spread protein intake over the day. The ideal intake is 20 – 25 grams per session as your body will only process this amount. Space the intake and take the next one at least a few hours later.

8, Side note 1, on fish: I’ve stopped eating farmed fish like tilapia, shrimp, or salmon. I am concerned about antibiotic use in fish farming. Kim and I prefer wild salmon (despite the higher cost), Atlantic cod, sardines and Dutch herring of course!

9. Another side note, on loss of muscle: do not get fragile when you age.

One can not overestimate the importance of healthy tissues regarding healthy aging. Protein serves a crucial task. It constructs and repairs “tissues,” which include muscles, hair, skin, and organs. Physical exercises including resistance training and adequate protein intake supplement reinforce each other.

Maintaining an excellent muscle system, including hard work to stop loss of muscles (sarcopenia) is central. Muscles and physical exercises are a favorite topic of my blogs. Neglecting your muscles is related to so many potential health problems. This is especially true the older you get. For many reasons. Recent studies for example point to a correlation between weak muscles and a higher chance for dementia.

Ok, enough on proteins. Lead a happy and healthy life,

Robert, your health friend

Kijkduin beach