Does whey protein help preserve muscle mass with age?
Quick summary
With age, sarcopenia reduces muscle mass and strength; rich in leucine, whey stimulates protein synthesis even in older adults and provides useful support, provided it is combined with resistance training and a sufficient protein intake.
Key facts
Key points
- Whey’s leucine stimulates protein synthesis even in older people.
- A sufficient protein intake helps slow age-related sarcopenia.
- The benefit mainly materialises when combined with resistance training.
- Whey is a support, not a substitute for physical activity and a varied diet.
Whey is often recommended to limit age-related muscle loss. This page details one of the benefits covered in our guide to the benefits of whey: how it acts against sarcopenia, what the studies say and how to consume it safely. The complete guide to whey protein broadens the subject to all of its uses.
The role of whey in preserving muscle
With age, maintaining muscle mass becomes a matter of quality of life. Quickly digested and rich in leucine, whey is a support valued by older adults. Leucine stimulates muscle protein synthesis, which can help slow sarcopenia[3].
Older muscle does, however, show “anabolic resistance”: it responds less well to protein. A slightly higher intake, and above all one rich in leucine, helps offset this phenomenon[1].
To maximise the benefit, it is essential to combine whey with regular resistance training: it is this that turns protein intake into preserved muscle. This principle echoes the one detailed in the article on muscle growth.
What the studies show with age
Research has explored whey’s potential to preserve muscle in ageing people.
Findings of the studies
- In older people, whey consumed around exercise improves the post-exercise anabolic response[4].
- Protein supplementation combined with resistance training increases gains in mass and strength in adults, including older ones[1].
Mechanisms
The effectiveness rests on the richness in essential amino acids, notably leucine, which activates mTOR, a regulator of muscle growth[2]. Researchers recommend refining the combinations of whey and exercises suited to older adults.
A consumption guide and precautions
Sensible use maximises the benefits while respecting health.
Dosage and timing
A dose of 20 to 30 g per serving, ideally after training, supports recovery. A serving at breakfast or as a snack can top up an insufficient protein intake.
Precautions
- Lactose intolerance: favour an isolate or a hydrolysate.
- Hydration: maintain an adequate fluid intake.
- Pre-existing kidney disease: seek the advice of a healthcare professional.
Setting the record straight
In people with healthy kidneys, the idea that a high protein intake “damages the kidneys” is not demonstrated. Caution is only required in case of pre-existing kidney failure, where medical monitoring is necessary.
Frequently asked questions about whey and muscle mass with age
How does whey protein help preserve muscle mass?
Whey protein is a rapidly absorbed protein source that provides the amino acids needed for muscle repair and growth. By regularly consuming whey, such as Swilab’s, you help prevent muscle breakdown, especially after intense physical activity. This protein supports protein synthesis and so supports the preservation of muscle mass.
When is the best time to consume whey protein?
It is advisable to consume whey protein immediately after exercise to maximise muscle recovery, as this is when your muscles are most receptive to nutrients. Swilab also recommends including it in your daily diet to meet your overall protein needs, but the key is to meet your personal needs according to your diet and your level of activity.
Is whey protein only for athletes?
Although whey protein is popular among athletes and bodybuilders, it is beneficial for anyone looking to top up their protein intake, regardless of their level of physical activity. Swilab stresses that whey can be included in different diets to encourage muscle strength, recovery and general health maintenance, even for less active people.
What are the advantages of Swilab whey protein?
Swilab offers a high-quality whey protein that is not only effective at supporting recovery and muscle growth, but is also tested to guarantee optimal purity and effectiveness. Its products are formulated to support nutritional and performance goals while ensuring a pleasant taste and easy digestion, which makes them attractive to a wide range of users.
Does whey protein have any side effects?
Whey protein is generally safe for most people when consumed in appropriate amounts. Some people may, however, experience side effects such as digestive problems, especially if they are lactose intolerant. Swilab’s products are designed to minimise these effects through careful formulation, but it is essential to follow the dosage instructions and consult a healthcare professional if in doubt.
Sources & references
6 sources- Morton RW, et al. — A systematic review, meta-analysis and meta-regression of the effect of protein supplementation on resistance training-induced gains in muscle mass and strength in healthy adults
- Jäger R, et al. — International Society of Sports Nutrition Position Stand: protein and exercise
- Cermak NM, et al. — Protein supplementation augments the adaptive response of skeletal muscle to resistance-type exercise training: a meta-analysis
- Tang JE, et al. — Ingestion of whey hydrolysate, casein, or soy protein isolate: effects on mixed muscle protein synthesis at rest and following resistance exercise in young men
- Devries MC, Phillips SM — Supplemental protein in support of muscle mass and health: advantage whey
- Commission Regulation (EU) No 432/2012 — list of permitted health claims made on foods