Protein in Older Age: Requirements, Sarcopenia and Distribution

With age, the way the body uses protein changes. Muscle often responds less sensitively to the usual stimuli from diet and exercise, an effect sometimes described in the specialist literature as anabolic resistance. To still achieve a comparable effect on muscle protein synthesis, a somewhat higher protein intake per meal or per day is often considered sensible. The DGE takes this into account with its raised recommendation of about 1.0 g per kilogram of body weight from the age of 65.

Sarcopenia is the term for the age-related loss of muscle mass and muscle strength. This process is gradual and influenced by several factors, including physical activity, hormonal changes and diet. Sufficient protein intake combined with exercise, especially strengthening exercises, is regarded in nutrition science as one building block that can counteract muscle loss in older age.

This site makes no individual recommendations or promises of cure on this. If you have existing health questions or complaints related to muscle loss, medical or nutrition advice is sensible.

The DGE recommends a protein intake of about 1.0 g per kilogram of body weight per day for adults aged 65 and over. This is a general guide value for healthy people and does not replace individual advice. In people with kidney disease or other chronic conditions the appropriate protein requirement may differ, so medical advice should be sought before changing intake. You can find more general background on the subject on our page about protein requirements.

Besides the total amount, the distribution of protein over the day also seems to play a role in older age. Rather than taking most of the protein in a single meal, often dinner, the specialist literature discusses a more even distribution across several meals, for example with a recognisable protein source at breakfast, lunch and dinner. This can help to partly offset the effect of anabolic resistance described in studies.

In the case of unintended weight loss, noticeable loss of strength, difficulty swallowing or existing conditions such as kidney disease, it is sensible not to change protein intake significantly on your own but to seek medical or nutrition advice. This makes it easier to judge the amount and form of protein intake that suit you individually. You can also find more on this topic in the article Protein and Kidneys: Myths at a Glance.

Is a higher protein requirement in older age the same for everyone?

No. The DGE guide of about 1.0 g per kilogram of body weight applies to healthy older adults. Individual requirements can differ depending on health status, activity and other factors.

Does protein alone help against sarcopenia?

Protein is one building block among several. In nutrition science, the combination of sufficient protein intake and regular exercise, especially strength training, is regarded as sensible.

Is protein powder suitable for older people?

Protein powder can be a practical supplement if protein intake through normal meals is difficult. If you have existing conditions, its use should be agreed with medical or nutrition advice.

How do I know if I am getting too little protein?

Signs can include unintended weight loss or noticeable loss of strength. A reliable assessment, however, requires an individual evaluation, ideally by medical or nutrition professionals.