===Diet===
{{Main|Diet and obesity}}
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<div class="thumbimage">[[File:World map of calory consumption 1961 (v2).svg|200px|alt=(Left) A world map with countries colored to reflect the food energy consumption of their people in 1961. North America, Europe, and Australia have relatively high intake, while Africa and Asia consume much less.]]
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<div class="thumbimage">[[File:World map of Energy consumption 2001-2003.svg|200px|alt=(Right) A world map with countries colored to reflect the food energy consumption of their people in 2001–2003. Consumption in North America, Europe, and Australia has increased with respect to previous levels in 1971. Food consumption has also increased substantially in many parts of Asia. However, food consumption in Africa remains low.]]
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</div><div class="thumbcaption" style="clear: left; text-align: left; background: transparent">Map of dietary energy availability per person per day in 1961 (left) and 2001–2003 (right) Calories per person per day (kilojoules per person per day)
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{{legend|#b3b3b3|<small>No data</small>}}
{{legend|#ffff65|<small><1,600 (<6,700)</small>}}
{{legend|#fff200|<small>1,600–1,800 (6,700–7,500)</small>}}
{{legend|#ffdc00|<small>1,800–2,000 (7,500–8,400)</small>}}
{{legend|#ffc600|<small>2,000–2,200 (8,400–9,200)</small>}}
{{legend|#ffb000|<small>2,200–2,400 (9,200–10,000)</small>}}
{{legend|#ff9a00|<small>2,400–2,600 (10,000–10,900)</small>}}
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{{legend|#ff8400|<small>2,600–2,800 (10,900–11,700)</small>}}
{{legend|#ff6e00|<small>2,800–3,000 (11,700–12,600)</small>}}
{{legend|#ff5800|<small>3,000–3,200 (12,600–13,400)</small>}}
{{legend|#ff4200|<small>3,200–3,400 (13,400–14,200)</small>}}
{{legend|#ff2c00|<small>3,400–3,600 (14,200–15,100)</small>}}
{{legend|#cb0000|<small>>3,600 (>15,100)</small>}}
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[[File:World Per Person Energy Consumption.png|thumb|upright=1.6|alt=A graph showing a gradual increase in global food energy consumption per person per day between 1961 and 2002.|Average per capita energy consumption of the world from 1961 to 2002]]
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