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The Truth About Plant-Based Diets : Assessing the Impact of Junk Veg Food

Plant-based diets, encompassing vegetarian and vegan dietary patterns, center around foods derived from plants, with vegans abstaining from all animal products while vegetarians exclude meat and fish, yet may include dairy and eggs. A variation of this is the pescatarian diet, excluding meat, but allowing for fish consumption.(1)

The surging popularity of plant-based diets all over the world owes much to the extensive scientific research that has affirmed their potential health benefits. These diets have shown promise in improving blood cholesterol and blood sugar levels, contributing to overall health and wellness.(2) 

Moreover, a growing consciousness of the environmental toll of animal agriculture, from heightened greenhouse gas emissions to land degradation and excessive water usage, has further motivated many people to embrace plant-based eating. These diets offer a more eco-friendly approach to food consumption, aligning with sustainability goals and environmental conservation efforts.(3) 

However, while plant-based diets definitely have numerous health advantages, excessive reliance on processed or unhealthy vegetarian options can also pose risks. Overconsumption of highly processed “junk” plant-based foods might compromise nutritional balance, potentially leading to deficiencies and health issues if not carefully managed.

Let us take a look at what these ‘junk’ vegetarian foods are and their influence on your health. 

What are ‘Junk” Vegetarian Foods?

‘Junk’ plant-based or vegetarian foods belong to the category of ultra-processed foods, characterized by minimal whole-food content, high-calorie density, and substantial amounts of added sugars, salt, unhealthy fats, and industrial additives.(4)

Utilizing the NOVA classification system, which differentiates food items based on their degree of industrial processing, various plant-based products are deemed ‘junk’ due to their extensive processing and nutrient-poor composition.(5) These include a wide array of items such as commercially-manufactured breads, pastries, cakes, and cookies, often laden with refined sugars and unhealthy fats. 

Additionally, carbonated beverages, pre-packaged snacks, flavored dairy drinks, and breakfast cereals fall under this category, typically containing high levels of added sugars, artificial flavorings, and preservatives. Other examples encompass energy bars, instant sauces, soups, noodle pots, and desserts, often featuring a mix of synthetic additives and little nutritional value.

Despite being plant-derived, these ultra-processed ‘junk’ foods lack the essential nutrients, fiber, and beneficial compounds found in minimally processed whole foods, posing health risks when consumed excessively as they contribute to a less balanced and less nourishing diet.(6)

Influence of Junk Veg Food on your Health

Ultra-processed foods, a growing segment in diets across middle- and high-income countries, have become a mainstay in the modern food landscape, often replacing minimally processed whole foods. These highly convenient options contribute to over half of the daily calorie intake for many individuals. Despite the convenience they offer, frequent consumption of plant-based ultra-processed foods is closely associated with a range of detrimental health outcomes.(7)

In a substantial cohort study hailing from 2019 that tracked 105,159 adults over a five year period, it was found that even a modest ten percent escalation in the intake of ultra-processed foods was linked to an elevated risk of heart disease and stroke.(8) Beyond cardiovascular health, increased consumption of these foods has also been associated with a higher susceptibility to certain cancers, type 2 diabetes, and heightened exposure to harmful chemicals commonly found in food packaging.(9,7,10)

Moreover, diets rich in ultra-processed plant-based foods often result in higher calorie intake, potentially leading to weight gain and an augmented risk of obesity.(11,12) Notably, vegetarian and vegan diets, while appreciated for their health and environmental benefits, might actually pose certain challenges in terms of nutrient deficiencies. Studies have revealed lower levels of essential nutrients such as iron, vitamin B12, calcium, vitamin D, and omega-3 fatty acids in individuals adhering strictly to these diets.(13) 

The omission of nutrient-rich animal sources like meat and dairy in vegetarian and vegan diets might contribute to deficiencies and health concerns. For instance, vegetarian women exhibited a higher risk of hip fractures in a recent study, likely associated with the lack of iron, B12, and calcium in their dietary intake. This study was published as recently as 2022.(14) This underscores the importance of adequately replacing these nutrients with plant-based alternatives and avoiding excessive reliance on ultra-processed foods that offer little nutritional value. 

Mitigating these Health Risks of ‘Junk’ Veg Foods

Maintaining a well-designed vegetarian or vegan diet offers a multitude of health advantages while mitigating the health risks associated with diets heavily reliant on ultra-processed plant-based foods. 

Scientific evidence affirms the longevity benefits of plant-based diets and their potential in combating muscle loss, especially in older individuals with obesity. These diets are deemed safe and beneficial during pregnancy, lactation, and for sustaining physical performance, provided they meet nutritional needs.(15,16,17,18) 

Balanced plant-based diets, rich in fruits, non-starchy vegetables, whole grains, low-fat dairy, eggs, plant protein, and seafood, closely align with established dietary guidelines. Such diets elevate diet quality as indicated by the Healthy Eating Index, while reducing intake of detrimental components like excess salt, added sugar, unhealthy fats, and excessive calories.(19)

It is important to recognize that not all plant-based diets pose negative health risks. Embracing a holistic and nutritious dietary pattern is key in managing and minimizing the risks of prevalent conditions such as heart disease, diabetes, and cancer

Eating a Well-balanced Vegetarian Diet

Maintaining a diverse and well-balanced plant-based diet involves several practical strategies to ensure adequate nutrition and overall health. 

First and foremost, it is important that you minimize the consumption of ultra-processed foods within a plant-based diet. These foods often contain excessive amounts of salt, added sugars, and unhealthy fats. While exploring vegetarian or vegan meat replacement products, opt for those with lower sodium and reduced fat content. Always check out the nutrient labels on packaged foods, paying particular attention to sugar, salt, and fat levels.(20) Prioritize items that contain fewer additives and align more closely with your nutritional goals. 

Another vital aspect is to monitor your carbohydrate intake. Transitioning to a plant-based diet should not translate to an increase in your intake of highly processed or refined carbohydrate sources. Prioritize whole grain options and manage portion sizes to achieve a balance that perfectly aligns with your health objectives. 

At the same time, ensuring an adequate intake of proteins is essential. For vegetarians, sources like beans, nuts, seeds, tofu, tempeh, and dairy products offer high-protein alternatives. These also provide essential nutrients such as calcium, iron, vitamin D, and vitamin B12, often lacking in vegetarian diets.

Here are some other healthy items to consider including in your plant-based healthy diet: 

  • Whole grains: Opt for whole grains like quinoa, brown rice, oats, barley, and whole-grain bread, as they offer fiber, B vitamins, and minerals.
  • Legumes: Beans, lentils, chickpeas, and peas are excellent sources of protein, fiber, iron, and other essential nutrients.
  • Nuts and seeds: Almonds, walnuts, chia seeds, flaxseeds, and pumpkin seeds provide healthy fats, protein, and micronutrients like vitamin E and magnesium.
  • Tofu and tempeh: These soy-based products offer a good source of protein, iron, calcium, and other essential minerals.
  • Plant-based oils: Healthy fats from olive oil, avocado oil, and coconut oil can be used for cooking and in salad dressings.
  • Fruits: Incorporate a variety of fruits such as berries, apples, oranges, bananas, and mangoes to provide essential vitamins, antioxidants, and dietary fiber.
  • Vegetables: Include a wide array of colorful vegetables like leafy greens, broccoli, carrots, bell peppers, and sweet potatoes to get a mix of vitamins, minerals, and antioxidants.
  • Plant-based milk alternatives: Opt for fortified varieties of almond, soy, oat, or coconut milk to ensure adequate calcium and vitamin D intake.
  • Seaweed and algae: These are excellent sources of iodine, which is essential for thyroid health. Include nori, spirulina, or chlorella in your diet.
  • Fermented foods: Incorporate fermented options like kimchi, sauerkraut, miso, and kombucha for gut health due to their probiotic content.

Supplements may further complement your dietary needs, especially for nutrients that are challenging to obtain solely from plant-based sources. Discuss with healthcare professionals which supplements might be beneficial for you and how they can help bridge any nutrient gaps in your diet. 

Seeking guidance from a registered dietitian is beneficial, especially when transitioning to plant-based eating. They can offer personalized advice, ensuring that your dietary choices meet your specific nutrient requirements while optimizing your health goals. 

Conclusion 

While plant-based diets offer numerous health benefits, it is important to distinguish between healthy, whole-food plant-based options and ultra-processed junk veg foods. Consumption of nutrient-rich whole foods like fruits, vegetables, whole grains, legumes, nuts, and seeds is vital for maintaining overall health and reducing the risk of chronic diseases. Striking a balance and focusing on whole, minimally processed plant foods can significantly contribute to a healthier lifestyle and well-being. 

References:

  1. Dinu, M., Abbate, R., Gensini, G.F., Casini, A. and Sofi, F., 2017. Vegetarian, vegan diets and multiple health outcomes: a systematic review with meta-analysis of observational studies. Critical reviews in food science and nutrition, 57(17), pp.3640-3649.
  2. Rosanna Abbate, M.D., Gensini, G.F., Casini, A. and Francesco Sofi, M.D., 2016. Vegetarian, vegan diets and multiple health outcomes: a systematic review with meta-analysis of observational studies.
  3. Fresán, U. and Sabaté, J., 2019. Vegetarian diets: planetary health and its alignment with human health. Advances in nutrition, 10(Supplement_4), pp.S380-S388.
  4. Monteiro, C.A., Cannon, G., Moubarac, J.C., Levy, R.B., Louzada, M.L.C. and Jaime, P.C., 2018. The UN Decade of Nutrition, the NOVA food classification and the trouble with ultra-processing. Public health nutrition, 21(1), pp.5-17.
  5. Monteiro, C., Cannon, G., Lawrence, M., Laura Da Costa Louzada, M. and Machado, P. (2019). Ultra-processed foods, diet quality, and health using the NOVA classification system Prepared by. [online] Available at: https://www.fao.org/3/ca5644en/ca5644en.pdf.
  6. Supplemental material Appendix 1: Precisions and examples of ultra-processed foods according to the NOVA classification. (n.d.). Available at: https://www.bmj.com/content/bmj/suppl/2018/02/14/bmj.k322.DC1/fiot040538.ww1.pdf#:~:text=Examples%20of%20ultra-processed%20food%20according%20to%20the%20NOVA [Accessed 17 Nov. 2023].
  7. Levy, R.B., Rauber, F., Chang, K., Louzada, M.L.D.C., Monteiro, C.A., Millett, C. and Vamos, E.P., 2021. Ultra-processed food consumption and type 2 diabetes incidence: A prospective cohort study. Clinical Nutrition, 40(5), pp.3608-3614.
  8. Srour, B., Fezeu, L.K., Kesse-Guyot, E., Allès, B., Méjean, C., Andrianasolo, R.M., Chazelas, E., Deschasaux, M., Hercberg, S., Galan, P. and Monteiro, C.A., 2019. Ultra-processed food intake and risk of cardiovascular disease: prospective cohort study (NutriNet-Santé). bmj, 365.
  9. Fiolet, T., Srour, B., Sellem, L., Kesse-Guyot, E., Allès, B., Méjean, C., Deschasaux, M., Fassier, P., Latino-Martel, P., Beslay, M. and Hercberg, S., 2018. Consumption of ultra-processed foods and cancer risk: results from NutriNet-Santé prospective cohort. bmj, 360.
  10. Buckley, J.P., Kim, H., Wong, E. and Rebholz, C.M., 2019. Ultra-processed food consumption and exposure to phthalates and bisphenols in the US National Health and Nutrition Examination Survey, 2013–2014. Environment international, 131, p.105057.
  11. Hall, K.D., Ayuketah, A., Brychta, R., Cai, H., Cassimatis, T., Chen, K.Y., Chung, S.T., Costa, E., Courville, A., Darcey, V. and Fletcher, L.A., 2019. Ultra-processed diets cause excess calorie intake and weight gain: an inpatient randomized controlled trial of ad libitum food intake. Cell metabolism, 30(1), pp.67-77.
  12. Poti, J.M., Braga, B. and Qin, B., 2017. Ultra-processed food intake and obesity: what really matters for health—processing or nutrient content?. Current obesity reports, 6, pp.420-431.
  13. Pawlak, R., Berger, J. and Hines, I., 2018. Iron status of vegetarian adults: a review of literature. American journal of lifestyle medicine, 12(6), pp.486-498.
  14. Webster, J., Greenwood, D.C. and Cade, J.E., 2022. Risk of hip fracture in meat-eaters, pescatarians, and vegetarians: results from the UK Women’s Cohort Study. BMC medicine, 20(1), pp.1-10.
  15. Crous-Bou, M., Molinuevo, J.L. and Sala-Vila, A., 2019. Plant-rich dietary patterns, plant foods and nutrients, and telomere length. Advances in Nutrition, 10(Supplement_4), pp.S296-S303.
  16. Chen, F., Xu, S., Cao, L., Wang, Y., Tian, H., Hu, J., Wang, Z. and Wang, D., 2021. A lacto-ovo-vegetarian dietary pattern is protective against sarcopenic obesity: A cross-sectional study of elderly Chinese people. Nutrition, 91, p.111386.
  17. Sebastiani, G., Herranz Barbero, A., Borrás-Novell, C., Alsina Casanova, M., Aldecoa-Bilbao, V., Andreu-Fernández, V., Pascual Tutusaus, M., Ferrero Martínez, S., Gómez Roig, M.D. and García-Algar, O., 2019. The effects of vegetarian and vegan diet during pregnancy on the health of mothers and offspring. Nutrients, 11(3), p.557.
  18. Craddock, J.C., Probst, Y.C. and Peoples, G.E., 2016. Vegetarian and omnivorous nutrition—Comparing physical performance. International journal of sport nutrition and exercise metabolism, 26(3), pp.212-220.
  19. Parker, H.W. and Vadiveloo, M.K., 2019. Diet quality of vegetarian diets compared with nonvegetarian diets: a systematic review. Nutrition reviews, 77(3), pp.144-160.
  20. Jürkenbeck, K., Mehlhose, C. and Zühlsdorf, A., 2022. The influence of the Nutri-Score on the perceived healthiness of foods labelled with a nutrition claim of sugar. Plos one, 17(8), p.e0272220.

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Team PainAssist
Team PainAssist
Written, Edited or Reviewed By: Team PainAssist, Pain Assist Inc. This article does not provide medical advice. See disclaimer
Last Modified On:December 10, 2023

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