The main diet for humans is meat and plant base. According
to the David and Marcia Pimentel, 2 billion people are primarily on a meat-base
diet and 4 billion people are on a plant base diet (D Pimentel and M Pimentel,
2003). The Journal of Frontiers in Nutrition has recently published a research
base on the relationship between diet and environmental sustainability.
The report stated that a shift towards a plant base diet
would reduce the environmental impact and the sustainability of phosphorus.
Phosphorus is an important element to all life and also plays an important role
in food production. It is one of the main ingredient of fertilisers to maintain
productivities of crops. However, the phosphate rock is not a renewable
resource and supply has started failing to meet the demand (Frontiers in
Nutrition, 2016). Insufficient of phosphate would lead to eutrophication,
degrade in water quality and algal bloom which would directly affect the
drinking water and fisheries (Frontiers in Nutrition, 2016).
The Crops contains the footprint of phosphate would be
consumed by humans in a direct and indirect path. Indirect consumption refers
the crops consume by animals than consume by humans. The statistic has shown
that plant is more efficient compared to animals in terms of phosphate where 1
kg of phosphate can produce 3333kg of potato while it can only produce 16kg of
beef (Frontiers in Nutrition, 2016).
Dr Genevienve Metson and her team have done a research on
whether human diet from meat base to plant base would provide be a possible
solution. The result shows that there would be 8% increase in phosphorus
excretion in the city while the phosphorus footprint of residents would
decrease by 72% (Metson, Cordell and Ridoutt, 2016). It indicated that changing
to a plant base diet would provide a significant reduce in phosphorus mining
thus improving the environmental sustainability.
I believe that switching from meat base to a plant base diet
would definitely benefit the environmental sustainability. However, the border
issues behind plant base/ animal base diet would be food security in general.
As mention in the article, the crop would be direct and indirectly consume by
humans. Therefore, the sustainability of the crop would be an essential issue.
There is a global threat in agricultural sustainability, and I believe
remaining the sustainability of agricultural would be the priority.
David and Marcia Pimentel. (2003, September). Sustainability
of meat- based and plant- based diets and the environment. The American Journal
of Clinical Nutrition. Available at: http://ajcn.nutrition.org/content/78/3/660S.full (Accessed May 28,
2017).
Frontiers in Nutrition. (2016, November 3). How your diet
can influence your environmental impact. ScienceDaily. Available at: https://www.sciencedaily.com/releases/2016/11/161103124536.htm
(Accessed May 28, 2017).
Metson, Cordell and Ridoutt. (2016, Augest 26). Potential Impact of Dietary Choices on Phosphorus
Recycling and Global Phosphorus Footprints: The Case of the Average Australian
City. Frontier in Nutrition. Available at: http://journal.frontiersin.org/article/10.3389/fnut.2016.00035/full
(Accessed May 28, 2017).
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