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Plant based diet improves environment by reducing greenhouse gas emissions
A new study published in the American Journal of Clinical Nutrition suggests that the majority of eating habits include compromises regarding sustainability. Although the plant-based diet proved to be the greatest for the environment, the low-fat diet seemed to have the highest quality.
Major policy agendas ask for rapid funding in studies that examine how dietary habits affect several sustainability domains. Consequently, this research was done to compare the daily per capita greenhouse gas emissions, diet costs, and diet quality of plant-based, low-fat, low-grain, and time-restricted diet patterns.
Data on food prices and greenhouse gas emissions (GHGEs) from several databases were combined with dietary information from the National Health and Nutrition Examination Survey (2013-2016, n = 4025). The Healthy Eating Index-2015 was utilized to measure the effectiveness of the diet.
The key findings of this study were:
1. Although the diet quality was comparable to most other diet patterns (P > 0.005), the plant-based diet pattern had the lowest GHGEs (3.5 kg carbon dioxide equivalent (CO2eq); 95% confidence interval (CI): 3.3, 3.8 kg CO2eq) and one of the lowest diet costs.
2. The low-grain diet plan had all intermediate sustainability effects. With intermediate diet quality and moderate to high GHGEs, the limited carbohydrate diet pattern had the greatest diet cost.
3. The greatest diet quality, intermediate GHGEs, and lowest diet cost were all found in the low-fat diet pattern.
4. The time-restricted diet pattern had low to moderate diet cost, GHGEs that were comparable to those of most other diet patterns, and one of the lowest diet quality scores.
Recent methodological developments in diet sustainability research allowed this study to combine data on environmental effects, cost, and food quality from many databases. In this nationally representative study, the majority of food patterns were linked to sustainability trade-offs. These findings are relevant since many American people are experimenting with dietary patterns for which there has just recently been sufficient research to support their effects on the environment, cost, and health. Future policy discussions, such as those around the National Strategy on Hunger, Nutrition, and Health's execution and the creation of the DGA 2025–2030, can benefit from these findings.
Reference:
Conrad, Z., Drewnowski, A., Belury, M. A., & Love, D. C. (2023). Greenhouse gas emissions, cost, and diet quality of specific diet patterns in the United States. In The American Journal of Clinical Nutrition. Elsevier BV. https://doi.org/10.1016/j.ajcnut.2023.04.018
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Jacinthlyn Sylvia, a Neuroscience Master's graduate from Chennai has worked extensively in deciphering the neurobiology of cognition and motor control in aging. She also has spread-out exposure to Neurosurgery from her Bachelor’s. She is currently involved in active Neuro-Oncology research. She is an upcoming neuroscientist with a fiery passion for writing. Her news cover at Medical Dialogues feature recent discoveries and updates from the healthcare and biomedical research fields. She can be reached at editorial@medicaldialogues.in
Dr Kamal Kant Kohli-MBBS, DTCD- a chest specialist with more than 30 years of practice and a flair for writing clinical articles, Dr Kamal Kant Kohli joined Medical Dialogues as a Chief Editor of Medical News. Besides writing articles, as an editor, he proofreads and verifies all the medical content published on Medical Dialogues including those coming from journals, studies,medical conferences,guidelines etc. Email: drkohli@medicaldialogues.in. Contact no. 011-43720751