Do You Need More Protein if You Lift Weights and You are Over 40?
Growing involves several metabolic and physical changes that could influence your requirements in specific nutrients and situations. One of the most important aspects of maintaining good health over 40 years old is exercise and nutrition, both are needed for preventing diseases, injuries, and being able to do all your daily activities (1).
In this brief article, we will address the query “Do You Need More Protein if You Lift Weights and You are Over 40?”. Additionally, we will present the importance of protein and lift weights in aging, what the best protein sources are, and a brief guide of protein supplementation.
Do You Need More Protein if You Lift Weights and You are Over 40?
Yes, if you lift weights, and especially if you are over 40, you should consume more protein than of the recommendations. The international consensus recommends an intake of 0.6-0.8 g of protein/kg of weight. However, lifting weights and being over 40 years old may require a higher protein intake, around 1.2-1.6 g of protein/kg of weight (2,3).
What is the Role of Protein and Lift Weights in Aging?
Lifting weights is a very exhaustive exercise for your muscle, therefore protein is an important nutrient useful to repair the damages caused by the exercise. Besides, protein is critical to build stronger muscles, which could be helpful for many daily activities (4).
During aging, your muscle synthesis is not as efficient as it was back in your adolescence; this reduction of muscle synthesis could lead to muscle mass loss or sarcopenia. Losing too much muscle mass could increase the risks of fractures and other bone injuries (2,3).
With protein intake and lifting weights, your body will get an incentive to produce more and stronger muscle mass, this not only benefits your appearance, but it will also enhance all your life quality (2,3).
What is the importance of protein quality, and what are the best protein sources?
Protein quality is essential because there are specific amino acids like Leucine which promote muscle mass synthesis and hypertrophy (3).
Due to the importance of protein quality in muscle synthesis, it is crucial to consume complete proteins like those found in animal-derived foods. Milk, fish, pork, beef, and eggs are examples of foods with high quality protein for your muscles (5).
On the other hand, vegetable proteins like cereals and legumes have incomplete proteins. If you consume cereals and legumes alone, you will not get all essential amino acids like Lysine or Methionine (5).
However, you can combine legumes and cereal in the same dish to complement their proteins; hence you will be eating complete proteins. Cereals lack Lysine, but they have Methionine; legumes, in contrast, lack Methionine, but they have Lysine (5).
Do You Need Protein Supplements?
It is not mandatory to use protein supplements, however, it is recommended to use protein supplements for elderly people (> 60 years). There are some specific cases when you can consider using supplements (1):
- Involuntary loss of muscle mass
- Not meeting your protein intake requirements
- Lack of appetite that compromises your protein intake
If you are experiencing some of those situations, you can consult a nutrition specialist to incorporate a protein supplement in your diet. Protein supplements are a good option because they contain high quality proteins, vitamins, and minerals (1).
What is the Best Time to Consume Your Protein?
The best time to consume proteins is within 45 minutes after your exercise routine. This 45-minute period after your workout is known as the anabolic window (6).
The anabolic window is important because it is when your muscle is more susceptible to all nutrients you eat, hence, eating your protein in this time will ensure it will be used for repairing your muscles (6).
You can find more information about the anabolic window here!
Sometimes, elderly people or people with gastrointestinal diseases may experience low appetite or gastrointestinal inflammation when consuming high loads of protein. In those cases, it is recommended to consume your protein in your meals (breakfast, lunch, and dinner) (1).
Conclusion
In this brief article, we addressed the query “Do You Need More Protein if You Lift Weights and You are Over 40?”. Additionally, it presented the importance of protein and lift weights in aging, what the best protein sources are, and a brief guide of protein supplementation.
References
- Chapman I, Oberoi A, Giezenaar C, Soenen S. Rational use of protein supplements in the elderly-relevance of gastrointestinal mechanisms. Nutrients, 2021;13(4):1227.
- Dardevet D, Mosoni L, Savary-Auzeloux I, Peyron M-A, Polakof S, Rémond D. Important determinants to take into account to optimize protein nutrition in the elderly: solutions to a complex equation. Proceedings of the Nutrition Society. Cambridge University Press, 2021;80(2):207–20.
- Daniel A Traylor, Stefan H M Gorissen, Stuart M Phillips, Perspective: Protein Requirements and Optimal Intakes in Aging: Are We Ready to Recommend More Than the Recommended Daily Allowance? Advances in Nutrition, 2018;9(3):171–182.
- Storey A, Smith HK. Unique aspects of competitive weightlifting: Performance, training and physiology. Sports Med, 2012;42(9):769–90.
- Day L. Proteins from land plants – Potential resources for human nutrition and food security. Trends Food Sci Technol, 2013;32(1):25–42.
- Arent SM, Cintineo HP, McFadden BA, Chandler AJ, Arent MA. Nutrient timing: A garage door of opportunity? Nutrients, 2020;12(7):1948.