Can pregnant women eat protein bars?

By Dr Jorge Metri (PhD) | Reviewed by Dr Anny Manrich (PhD)
Page last updated: 06/06/2023 | Next review date: 06/06/2025
verified

The contents of this article are fact-based except otherwise stated within the article.

close

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)
View More north_east
close

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)
View More north_east

In this article, we will answer the query “Can pregnant women eat protein bars?” We will cover relevant information regarding protein needs and their role during pregnancy, the benefits and possible risks of protein supplements, and other protein-rich snacks.

Can pregnant women eat protein bars?

Yes, it is not the most common recommendation, and it is not the best option, but yes, protein supplements (including protein bars) are allowed during pregnancy (1,2).

The main purpose of protein bars will be to help to reach the protein daily requirements; however, you should take into account that your protein requirements should be met by your diet. If you want to use a protein supplement, it is mandatory to ask for professional advice (1,2).

Can protein bars help meet the increased protein requirements during pregnancy?

Yes, in fact, protein bars are intended for athletes with a high demand of protein and energy, so they are very good for meeting energy and protein requirements (3).

A protein bar could provide you with 20 – 50 g of protein, depending on the formulation and the serving size. Besides, protein bars are normally elaborated with Whey protein and Casein, which are high quality (contain all essential amino acids) proteins (3).

High quality proteins are important for your health because they contain essential amino acids, which are needed for creating tissues, hormones, muscle, and organs (4).

What are the protein requires during pregnancy?

During pregnancy, your daily protein requirements are around 1.2 g/kg (during the first 16 weeks) and 1.55 g/kg (near to week 36), which are higher than the general recommendation of 0.8 g/kg (2,5).

Remember that you share your nutrients with your baby, and you will need an extra load of everything (including proteins) to ensure your health and your baby’s development (2,4).

In addition, pregnancy produces several adaptations in the human body, for example: the blood volume increases, there are new tissues to create like placenta, the body must prepare to make breast milk, among others (2,5).

All the changes during pregnancy increase the needs of proteins, because they contain amino acids, which are the building blocks for organs and tissues (4).

What are the potential benefits of protein bars for pregnant women, and when should protein bars be considered?

There is controversy about the possible benefits of eating protein bars or supplements during pregnancy (1,2). 

The evidence shows that the consumption of protein supplements, but maintaining a healthy protein intake (1.2 – 1.5 g/kg) could help prevent pregnancy complications and help achieve a good weight in babies (1,2).

You should consider a protein bar or protein supplementation if you do not meet your daily protein requirements with your diet. Please take into account that you must ask for professional advice from your trusted gynecologist and nutritionist (1,2).

Are there any ingredients to avoid or limit in protein bars during pregnancy?

Some protein supplements can contain stimulants like caffeine, which is not recommended during pregnancy because it can increase the risks of miscarrying or reducing baby’s weight (6,7).

Caffeine is contained in coffee, cocoa, tea, or could be added as caffeine in the product. Therefore, if you are going to consume protein supplements, check for those products free of caffeine and cocoa (6,7).

What are some alternative protein-rich snacks for pregnant women?

An excellent protein-rich snack is Greek yogurt. Greek yogurt will provide you with high-quality proteins, but also with essential micronutrients like calcium, vitamin D, and B vitamins (8).

Calcium and vitamin D are crucial for maintaining good bone health and preventing osteoporosis. B vitamins are known for promoting a good cognitive development in children, especially folate and cyanocobalamin (8).

Here are some delicious recipes for Greek yogurt!

Conclusion

In this article, we answered the query “Can pregnant women eat protein bars?” We covered relevant information regarding protein needs and their role during pregnancy, the benefits and possible risks of protein supplements, and other protein-rich snacks.

References

  1. Lassi ZS, Padhani ZA, Rabbani A, Rind F, Salam RA, Das JK, et al. Impact of dietary interventions during pregnancy on maternal, neonatal, and child outcomes in low- and middle-income countries. Nutrients, 2020;12(2):531.
  1. Elango R,  O Ball R. Protein and Amino Acid Requirements during Pregnancy. Advances in Nutrition, 2016;7(4):839S–844S
  1. Jovanov P, Sakač M, Jurdana M, Pražnikar ZJ, Kenig S, Hadnađev M, et al. High-protein bar as a meal replacement in elite sports nutrition: a pilot study. Foods, 2021;10(11):2628.
  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. Mousa A, Naqash A, Lim S. Macronutrient and micronutrient intake during pregnancy: An overview of recent evidence. Nutrients, 2019;11(2):443.
  1. Piattoly TJ. Dietary supplement safety: Risk vs reward for athletes. Oper Tech Sports Med, 2022;30(1):150891.
  1. Boylan SM, Cade JE, Kirk SFL, Greenwood DC, White KLM, Shires S, et al. Assessing caffeine exposure in pregnant women. Br J Nutr, 2008;100(4):875–82.
  1. Aktypis A, Tsakalidou E, Manolopoulou E. Yogurt and health. In: Zabetakis I, Tsoupras A, Lordan R, Ramji D, editors. Functional Foods and Their Implications for Health Promotion. San Diego, CA: Elsevier; 2023. p. 221–34