Sea vegetables
Sea vegetables, such as kelp and nori, are easy to grow and supply you with vitamins and minerals.
Photo by Getty Images Aug 3, 2012
What will we be eating in 20 years?
A growing population, food prices and dwindling land resources are all affecting what we eat. Substitutions for the future are already being looked into, do you think you could stomach a crushed caterpillar burger?
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