Could changes in Dietary Patterns of world population alleviate hunger problems.

  1. Most of the world consumes non vegetarian food significantly. This wikipedia article compares the virtual water requirements of various food products :-
    I am showing the water requirements just as an example. But even land required to produce 1 kg of beef/red meat must be greater than land required to produce 1kg eggs.

    So if human beings start shifting towards food products which require less resources for their production , but have similar nutritional value , maybe food shortage problems across the world could be lessened.

    By this logic , soy-milk fortified with calcium could be a substitute for cow's milk.

    Of course,changing habits of human beings especially food habits is a very tough job. Further, availability of food grains will also lead to increase in population. But still, the problem of hunger for the current world population remains unsolved. This could be one of the many solutions in a multi-pronged approach towards hunger reduction. There are also serious issues which need to be addressed such as black-marketing , in developing countries, which leads to hunger problems.
     
  2. jcsd
  3. Char. Limit

    Char. Limit 1,986
    Gold Member

    There's no way I'll listen to anyone who tells me I shouldn't eat beef. I like beef.

    Selfish? You bet it is. Do I care? Not enough to change my eating habits.

    So yeah, there's your first big difficulty. A LOT of people think like me.
     
  4. Wouldn't you rather have tofu ? :biggrin:
    No just kidding.

    Yes, you are right . I did mention it in my first post that changing food habits is not practical.

    But what I meant was smart changes in dietary patterns. Not complete abstinence . That is way too extreme.
    But if a person on average consumes 30 kg meat a year, he/she could cut it down to 24 kg per year. If you look at the water requirements , even that could produce admirable change.
    Furthermore, reduction in amount of red meat consumption after a certain age is beneficial for the heart.
    Or if a person doesn't want to give beef at all, maybe he could try opting for soy-milk instead of cow's milk , beef consumption being just the same as earlier.

    P.S :- I wouldn't equate eating beef with selfishness or anything. I live in India, in our country most of the people are vegetarian and I wouldn't necessarily call them as the most selfless people in the world. Problems like over-population,corruption and black marketing are major contributors of hunger.


    I read this article and the criticisms of such an approach do seem valid.
     
    Last edited: Nov 7, 2011
  5. Evo

    Staff: Mentor

    They can raise cattle in areas not suitable to agriculture. Better to raise cattle than leave the land empty.
     
  6. But the cattle will still consume lots of fodder for it's entire lifespan , say 3-4 years on an average. And that fodder will need land. And in the end the cow will be eaten in a week or so. The farther our diet is from the solar energy in the food-chain , the more resources consumed.(A significant amount of meat is produced by feeding foodgrains to the animal instead of grass grazing on open pastures)

    Of course, what I am saying seems logically simplistic, and hence perhaps impractical.

    Changes in dietary patterns could be one of the approaches. We need to improve efficiency in our distribution systems. I repeat, in my country problems such as poor agricultural technology , corruption , over-population are major causes of hunger. There is no point in people laying off meats and in the end the surplus food produced being eaten away by corruption.
     
    Last edited: Nov 7, 2011
  7. Evo

    Staff: Mentor

    They don't need much to live on.
    http://aitc.oregonstate.edu/commodities/beef.html
     
  8. Last edited: Nov 7, 2011
  9. Highway median strips?

    Personally, I think cutting the grass is a huge waste of resources - everyone should have a cow and raise 2 calves per year (front yard and back yard). If you live in an apartment - you can rent space on a farm.:smile:
     
  10. russ_watters

    Staff: Mentor

    Haven't we discussed this in other threads? The world's hunger problems are not primarily due to lack of capacity to grow food, but rather due to political, social and economic problems limiting access to food and/or the technology and resources to produce food.
     
  11. Evo

    Staff: Mentor

    Only a thousand times.
     
  12. Ryan_m_b

    Staff: Mentor

    We could grow meat in vitro. That would reduce the resources we have to use to make it to 5-20% of what it is now. Furthermore the crossover for technologies that allow for controlled cell behaviour (migration, differentiation etc) would have fantastic benefits in regenerative medicine. The advantage of tapping the food industry is that currently the beef market in the US alone is ten times the value of regenerative medicine globally.
     
  13. Bobbywhy

    Bobbywhy 1,908
    Gold Member

    World hunger. The world needs to solve three food problems simultaneously: end hunger, double food production by 2050, and do both while drastically reducing agriculture’s damage to the environment. Scientists offer five solutions:

    1. Stop agriculture from consuming more tropical land
    2. Boost the productivity of farms that have the lowest yields
    3. Raise the efficiency of water and fertilizer use worldwide
    4. Reduce per capita meat consumption
    5. Reduce waste in food production and distribution

    http://www.scientificamerican.com/ar...al-damage-maps
     
  14. I quite agree with what you said, all or more than one of the above approaches should be applied.
    Point number 5 seems to me to be a very good one. I can understand that people can't be persuaded to reduce meat consumption, for such a thing impinges upon freedom of choice. But wastage of food that too at consumer end seems to me unforgivable. Wastage of food at production level would depend on poor technology . But wastage at consumer level is simply because of bad habits.
    Have a look at this http://en.wikipedia.org/wiki/Food_waste#Extent . If only people could be persuaded to use their refrigerators more often than their trash cans.
     
  15. It is not all consumer bad habits. Some waste persists due to product packaging also.
    There is alsways a drop of juice left over from a juice container - add up all those drops from all the litre (quart) containers sold - even more left in the containers with the screw on plastic spout thingy. Milk containers, same thing. Sugar packages - there is always some leaking out whenever I buy a pound bag of sugar. And those little single serving plastic packets of jam and peanut butter - it takes ages to get it all out.
     
  16. I think the problem is rather moot. In my lifetime the world's population doubled, and it will double again by the time I die. Since there is no chance in hell that agriculture can keep up with exponential growth, food will become more expensive. You don't need to change anything, at some point, the majority of people will just not be able to buy meat, and a large part of the world's population will just starve. End of problem....

    (Actually, if I apply logic to the problem, then to put an end to the population's growth that either must go voluntarily through birth control -which doesn't seem to happen,- or involuntarily through starvation. If you eat meat, the hard brick wall where people will need to die off will be hit earlier, which means that less people will need to die to stop the growth curve. So the solution to massive world starvation is to eat as much as you can now.)

    (For those mathematically challenged, it is a bit akin to whether you are going to hit a brick wall with a fiat panda, or a titanic going at double speed. The number of casualties in the first example is just smaller.)
     
    Last edited: Nov 9, 2011
  17. Along with my waistline. In response, I've switched to a near vegetarian diet, have tripled my caloric exercise output, and have lost about 20lbs since.
     
  18. Yah, well, I do the same. I don't live out of my means. But I personally believe that there are just too many people to sustain on earth, and in this case, I believe the worst trend prediction of the UN, which says exponential growth at least continuing during my lifetime.

    If it were up to me, free birth control measures to the total world's population should be one of the solutions.
     
  19. Ryan_m_b

    Staff: Mentor

    I doubt the population will grow that fast. Bear in mind that the developed world has stagnated and in many places is decreasing, in no small part due to; widespread contraceptive use, a lack of need for so many offspring, the increase cost of raising a child in a developed society and an increase in equality and rights for women. In reality an ever growing population is unlikely in my opinion, as the world develops and the third world shrinks we'll start to see population growth decline.

    With improvements to technology and decreasing population growth I doubt we'll see the malthusian nightmare some predict.
     
  20. You don't need a constantly increasing population to cause a Malthusian disaster if you have increasing constantly per capita pollution to supplant it. ;]
     
  21. There's plenty of food in the world. The problem is getting it to the people who need it.
     
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