Is Our Food Becoming Less Nutritious?
The nutrient content of food is declining. Is it because of soil depletion, selective breeding, or… something else?
When you ask sellers of vitamins why you should take vitamin supplements even if you eat a healthy diet, they will say because our food doesn’t contain all the nutrients it once did.
This is supposedly due to soil depletion, cold storage, food ripening off the vine, and global transport of out-of-season foods. And to an extent this is true. Foods contain the greatest amount of nutrients if they are eaten soon after they are harvested.
An unexpected source of nutrient decline is the increasing amount of carbon dioxide in the atmosphere. It causes plants to grow faster and bulk up on carbs but at the expense of other nutrients, so in percentage terms the amount of nutrients are actually declining. For now this decline is modest so supplementing with vitamin pills is probably unnecessary for most people with a healthy diet but it may be a concern in future.
Source: YouTube
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sunsettommy
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Excessive use of HYBRIDS varieties demands a much greater flow of soil elements and water into the plants than with open pollinated varieties.
I use open pollinated varieties only for superior flavor.
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