What happens if you eat protein and don’t workout?

By Dr Jorge Metri (PhD) | Reviewed by Dr Anny Manrich (PhD)
Page last updated: 11/06/2023 | Next review date: 11/06/2025
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The contents of this article are fact-based except otherwise stated within the article.

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Author bio

Dr Jorge Metri PhD is a Nutritionist with vast experience in food design with natural ingredients. He also researches sensory sciences and food quality with cutting-edge technologies like Machine Learning. He writes and reviews content on these topics.

Dr Jorge Metri’s highlights:

  • Invited Reviewer of two international scientific Journals
  • PhD in Food Science with emphasis on reduced-fat salad dressings with non-animal derived proteins at Universidad De Las Américas Puebla
  • Diploma in Artificial Intelligence at Universidad Anáhuac, México
  • Bachelor’s degree in Nutrition at the Universidad Latino

“Science shows its true impact when we make it understandable for everyone” – Dr Jorge Metri PhD.

Professional experience:

Prior to doing his PhD, Jorge Metri worked as an independent nutritionist for almost two years, focusing on sports nutrition to enhance the performance of swimmers and triathletes.

Jorge Metri has worked on several multidisciplinary research projects, including fruit processing, the production of protein-based products, spices, seasonings, jams, and artificial intelligence applied to agriculture production and food quality.

In the food technology area, Jorge Metri has contributed to improving sales and profits of two entrepreneurs of artisanal food products by reformulating their products and standardizing their processes.

Due to the high volume of food production and innovation, the food industry will need new technologies for food characterization in the next years; Jorge Metri is looking for studying such technologies, in 2022, he was selected as a finalist in the IFT FIRST 2022 Food Science event for the Sensory & Consumer Sciences Division Graduate Student Pangborn Oral Competition with the work titled: Machine Learning Models for Mayonnaise Acceptability Prediction.

Education:

  • 2018 – 2023: PhD in Food Science at Universidad De Las Américas Puebla of Puebla, México
  • 2022: Diploma in Artificial Intelligence at Universidad Anáhuac, México
  • 2011 – 2016: Bachelor’s degree in Nutrition at the Universidad Latino of Mérida Yucatán, México.

Main publications of Jorge Metri:

Conference papers:

You can view some of Dr Metri’s work below and links to his professional profiles:

LinkedIn: https://www.linkedin.com/in/jorge-metri-ojeda/ 

Research Gate:  https://www.researchgate.net/profile/Jorge-Carlos-Metri-Ojeda-2 

Google Scholar: https://scholar.google.com/citations?user=SBi5hE8AAAAJ&hl=es 

ORCID: https://orcid.org/0000-0002-7333-3688 


Dr Jorge Metri (PhD)
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Reviewer bio

Dr Anny Manrich PhD is a food Engineer with expertise in Food Technology, Natural Polymers, Edible Films, Enzymes, and Nanotechnology. She writes and reviews content on these topics.

Dr Anny Manrich’s Highlights: 

  • Research and Technology at the Brazilian Agricultural Research Corporation
  • PhD in Chemical Engineering with a focus on Biochemistry at the Federal University of Sao Carlos/ Brazil and a one-year scholarship at the Technical University of Munich/ Germany
  • Bachelor of Food Engineering at the University of Campinas/ Brazil and a one-year scholarship at the Technical University of Munich/ Germany

 

“To solve a problem, global vision and multifactorial understanding are necessary. Therefore, in addition to expertise, one should seek multidisciplinary thinking connected with science and reality” – Dr Anny Manrich, PhD.

Professional Experience: 

Dr Anny Manrich’s Experience Joining the Brazilian Agricultural Research Corporation, as soon as she completed her doctorate, 

 

Dr Anny Manrich has worked on several projects, including the more than three-year partnership project with BRF, a major food producer in Brazil. As a postdoctoral fellow. 

 

Dr Anny Manrich has also contributed to several business consultancies and research projects of the National Nanotechnology Laboratory System in areas such as food technology, fibres, films and coatings and Nanotechnology; in a very determined way, having a great team relationship, being creative and committed. 

Growing concerns about the safe introduction of nanomaterials into today’s life emphasises the need to create regulatory documentation in front of characterising, using and testing them. Dr Anny Manrich worked for two years on a characterization project for nanoscale materials, with the aim of exploring their possible health effects.

 

Despite not having specific academic training in packaging or polymeric films, Dr Anny Manrich works at the Brazilian Agricultural Research Corporation in areas of edible and biodegradable films produced from agricultural waste and in the development of films with greater resistance to water, having articles published in renowned scientific journals, which demonstrates her multidisciplinary understanding and creativity. 

 

In addition, she worked for four years as a consultant to a food company to develop a line of snacks that are healthy and that add functional ingredients, physiologically active compounds that bring health benefits, made from fruits and vegetables, enabling diet improvement, disease prevention and reduction of nutritional deficiencies. 

Dr Anny Manrich participated as a member of the examination board for two Master’s exams and one PhD exam at the Department of Chemical Engineering of the Federal University of São Carlos.

Education:

  • 2001 Bachelor in Food Engineering at the State University of Campinas, Brazil
  • 1999 One year scholarship at the Technical University of Munich
  • 2004 Master in Chemical Engineering at the Federal University of São Carlos, Brazil
  • 2012 PhD in Chemical Engineering at the Federal University of São Carlos, Brazil
  • 2010 One year scholarship at the Technical University of Munich

The main publications of Dr. Anny Manrich are:

Articles

Manrich, A., Moreira, F. K., Otoni, C. G., Lorevice, M. V., Martins, M. A., & Mattoso, L. H. (2017). Hydrophobic edible films made up of tomato cutin and pectin. Carbohydrate Polymers, 164, 83-91.

Mendes, J. F., Norcino, L. B., Martins, H. H. A., Manrich, A., Otoni, C. G., Carvalho, E. E. N., … & Mattoso, L. H. C. (2020). Correlating emulsion characteristics with the properties of active starch films loaded with lemongrass essential oil. Food Hydrocolloids, 100, 105428.

Norcino, L. B., Mendes, J. F., Natarelli, C. V. L., Manrich, A., Oliveira, J. E., & Mattoso, L. H. C. (2020). Pectin films loaded with copaiba oil nanoemulsions for potential use as bio-based active packaging. Food Hydrocolloids, 106, 105862.

Manrich, Anny, et al. Immobilization of trypsin on chitosan gels: Use of different activation protocols and comparison with other supports. International Journal of Biological Macromolecules 43.1 (2008): 54-61.

Manrich, Anny; Komesu, Andrea ; Adriano, Wellington Sabino; Tardioli, Paulo Waldir ; Giordano, Raquel Lima Camargo . Immobilization and Stabilization of Xylanase by Multipoint Covalent Attachment on Agarose and on Chitosan Supports. Applied Biochemistry and Biotechnology, v. 161, p. 455-467, 2010.

Mendes, J. F., Martins, J. T., Manrich, A., Neto, A. S., Pinheiro, A. C. M., Mattoso, L. H. C., & Martins, M. A. (2019). Development and physical-chemical properties of pectin film reinforced with spent coffee grounds by continuous casting. Carbohydrate polymers, 210, 92-99..

Milessi, T. S., Kopp, W., Rojas, M. J., Manrich, A., Baptista-Neto, A., Tardioli, P. W., … & Giordano, R. L. (2016). Immobilization and stabilization of an endoxylanase from Bacillus subtilis (XynA) for xylooligosaccharides (XOs) production. Catalysis Today, 259, 130-139.

Mendes, J. F., Norcino, L. B., Manrich, A., Pinheiro, A. C. M., Oliveira, J. E., & Mattoso, L. H. C. (2020). Development, physical‐chemical properties, and photodegradation of pectin film reinforced with malt bagasse fibers by continuous casting. Journal of Applied Polymer Science, 137(39), 49178.

Mendes, J. F., Martins, J. T., Manrich, A., Luchesi, B. R., Dantas, A. P. S., Vanderlei, R. M., … & Martins, M. A. (2021). Thermo-physical and mechanical characteristics of composites based on high-density polyethylene (HDPE) e spent coffee grounds (SCG). Journal of Polymers and the Environment, 29, 2888-2900..

Mendes, J. F., Norcino, L. B., Martins, H. H., Manrich, A., Otoni, C. G., Carvalho, E. E. N., … & Mattoso, L. H. C. (2021). Development of quaternary nanocomposites made up of cassava starch, cocoa butter, lemongrass essential oil nanoemulsion, and brewery spent grain fibers. Journal of Food Science, 86(5), 1979-1996.

Manrich, A., Martins, M. A., & Mattoso, L. H. C. (2021). Manufacture and performance of peanut skin cellulose nanocrystals. Scientia Agricola, 79.

Nascimento, V. M., Manrich, A., Tardioli, P. W., de Campos Giordano, R., de Moraes Rocha, G. J., & Giordano, R. D. L. C. (2016). Alkaline pretreatment for practicable production of ethanol and xylooligosaccharides. Bioethanol, 2(1)..

Manrich, Anny, de Oliveira, J. E., Martins, M. A., & Mattoso, L. H. C. Physicochemical and Thermal Characterization of the Spirulina platensis. J. Agric. Sci. Technol. B, v. 10, p. 298-307, 2020.

 

Book Chapter

Terra, I. A. A., Aoki, P. H., Delezuk, J. A. D. M., Martins, M. A., Manrich, A., Silva, M. J., … & Miranda, P. B. (2022). Técnicas de Caracterização de Polímeros. Nanotecnologia Aplicada a Polímeros, 614.

 

Conference Papers

Ferreira, L. F., Luvizaro, L. B., Manrich, A., Martins, M. A., Júnior, M. G., & Dias, M. V. (2017). Comparação da estabilidade de suspensões poliméricas de amido/tocoferol e quitosana/tocoferol. In: CONGRESSO BRASILEIRO DE POLÍMEROS, 14., 2017, Águas de Lindóia, SP.

Manrich, A., Hubinger, S. Z., & Paris, E. C. (2017). Citotoxicidade causada por nanomateriais: avaliação do micronúcleo. In: WORKSHOP DA REDE DE NANOTECNOLOGIA APLICADA AO AGRONEGÓCIO, 9., 2017, São Carlos. Anais… São Carlos: Embrapa Instrumentação, 2017. p. 655-658. 

Manrich, Anny, et al. Immobilization and Stabilization of Xylanase by multipoint covalent attachment on Glyoxyl Agarose Support. The 31st Symposium on Biotechnology for Fuels and Chemicals. 2009.

 

Manrich, Anny, et al. Application of immobilized xylanase on hydrolysis of soluble wood hemicelluloses after using microwave and organosolv pre-treatments. The 32nd Symposium on Biotechnology for Fuels and Chemicals. 2010.

 

You can view some of Dr Anny’s work below and links to her professional profile. 

 

Research Gate: https://www.researchgate.net/profile/Anny-Manrich-2  

 

Scopus: https://www.scopus.com/authid/detail.uri?authorId=23103497100  

 

Google Scholar: https://scholar.google.com/citations?hl=en&user=Ea9qpr0AAAAJ  

 

Linkedin: https://br.linkedin.com/in/anny-manrich-20693129

 


Dr Anny Manrich (PhD)
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This brief guide will answer the query “What happens if you eat protein and don’t workout?” We will provide relevant information regarding the role of protein in your body and the effect of a high-protein diet in your body composition.

What happens if you eat protein and don’t workout?

There is no clear answer for what happens if you eat protein and don’t workout, overall, the main counterpart of not working out is that you maybe will not gain muscle mass (1,2). 

What is the Role of Protein in the Body?

Proteins have special roles in almost all processes of your metabolism, they can create tissues like organs, muscle, and hair, and even they are needed to synthesize critical molecules in your body like: hormones, enzymes, and immune cells (3).

The most important role associated with proteins is growth and development, especially in children. However, proteins are also essential in mid-aged adults and elderly people to prevent fractures and increase the overall life quality (3).

What are the Potential Effects on your Body Composition?

There are some popular concerns that protein is converted into fat if you don’t workout. This is not true, protein alone is not going to increase your body fat mass, it is an excess of calorie intake that actually can increase your body fat mass (1,2).

In fact, there are diets based on a high protein content (for instance, Atkins diet, zone diet, high-protein diet), which have been shown to reduce weight and fat mass in people; for instance, Bray et al. (2) found no differences between subjects doing a high, mid and a low protein diet.

Moreover, the main benefit attributed to proteins is muscle hypertrophy, but if you are not working out, probably you will not see muscle gain. 

Why is it Difficult to Build Muscle Without Working Out?

It is difficult to build muscle without working out because exercise is the main stimuli to protein synthesis and hypertrophy (4,5). 

When you exercise, your muscles get micro injuries that should be repaired. To repair the damage caused by exercise, your body will activate different metabolic processes to create more and stronger muscle fibers (4,5).

How Much Protein Should You Consume?

A healthy person should consume 0.8 g/kg of protein, but if you are elderly or an athlete, the general recommendations suggest between 1.2 and 1.6 g/kg (6,7).

Are there any Health Concerns for Protein Overconsumption?

There is controversy about the health concerns for protein overconsumption; in healthy people, the literature has reported a safe consumption of 3 g/kg of weight daily (6). 

But if you already have a disease, specifically kidney disease, you should moderate your protein intake to 0.8 g/kg or less (8). 

Remember that the best thing you can do is look for professional advice from a nutrition specialist to adjust your macronutrients and energy intake.

Conclusion

This brief guide answered the query “What happens if you eat protein and don’t workout?” We provided relevant information regarding the role of protein in your body and the effect of a high-protein diet in your body composition.

References

  1. Pesta DH, Samuel VT. A high-protein diet for reducing body fat: mechanisms and possible caveats. Nutr Metab, 2014;19,11(1):53.
  1. Bray GA, Smith SR, de Jonge L, Xie H, Rood J, Martin CK, Most M, Brock C, Mancuso S, Redman LM. Effect of dietary protein content on weight gain, energy expenditure, and body composition during overeating: a randomized controlled trial. JAMA, 2012;307(1):47-55.
  1. Olson B, Marks DL, Grossberg AJ. Diverging metabolic programmes and behaviours during states of starvation, protein malnutrition, and cachexia. J Cachexia Sarcopenia Muscle, 2020;11(6):1429–46.
  1. Krzysztofik M, Wilk M, Wojdała G, Gołaś A. Maximizing muscle hypertrophy: A systematic review of advanced resistance training techniques and methods. Int J Environ Res Public Health,2019;16(24):4897.
  1. Wackerhage H, Schoenfeld BJ, Hamilton DL, Lehti M, Hulmi JJ. Stimuli and sensors that initiate skeletal muscle hypertrophy following resistance exercise. J Appl Physiol, 2019;126(1):30–43.
  1. Huecker M, Sarav M, Pearlman M, Laster J. Protein supplementation in sport: Source, timing, and intended benefits. Curr Nutr Rep, 2019;8(4):382–96.
  1. 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.
  1. Ko GJ, Obi Y, Tortorici AR, Kalantar-Zadeh K. Dietary protein intake and chronic kidney disease. Curr Opin Clin Nutr Metab Care, 2017;20(1):77-85.

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