According to the national nutrition survey which was conducted by Ministry of Health, Labour and Welfare, calcium intake among Japanese people is decreasing.
The following data show the trend in daily calcium intake per capita from 1975 to 2012 in Japan.
Figure : Trend in Calcium Intake, 1975 to 2012, in Japan per day per capita
| Year | Calcium (mg) |
| 1975 | 550 |
| 1980 | 535 |
| 1985 | 553 |
| 1990 | 531 |
| 1995 | 585 |
| 2000 | 547 |
| 2001 | 550 |
| 2002 | 546 |
| 2003 | 536 |
| 2004 | 532 |
| 2005 | 539 |
| 2006 | 534 |
| 2007 | 524 |
| 2008 | 505 |
| 2009 | 505 |
| 2010 | 503 |
| 2011 | 507 |
| 2012 | 499 |
Source is Ministry of Health, Labour and Welfare.
www.e-stat.go.jp/SG1/estat/GL08020103.do?_toGL08020103_&listID=000001118468&requestSender=estat
www.e-stat.go.jp/SG1/estat/GL08020103.do?_xlsDownload_&fileId=000006864461&releaseCount=1
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It is recommended that a person should take more than 650 mg calcium a day. Current intake is far from the target figure.
Table : Dietary reference intakes of calcium, defined by Ministry of Health, Labour and Welfare
| Men (mg per day) | Women (mg per day) | |||||
| Age | Requisite amount | Recommended amount | Max | Requisite amount | Recommended amount | Max |
| 1 to 2 | 350 | 450 | ― | 350 | 400 | ― |
| 3 to 5 | 500 | 600 | ― | 450 | 550 | ― |
| 6 to 7 | 500 | 600 | ― | 450 | 550 | ― |
| 8 to 9 | 550 | 650 | ― | 600 | 750 | ― |
| 10 to 11 | 600 | 700 | ― | 600 | 750 | ― |
| 12 to 14 | 850 | 1,000 | ― | 700 | 800 | ― |
| 15 to 17 | 650 | 800 | ― | 550 | 650 | ― |
| 18 to 29 | 650 | 800 | 2,500 | 550 | 650 | 2,500 |
| 30 to 49 | 550 | 650 | 2,500 | 550 | 650 | 2,500 |
| 50 to 69 | 600 | 700 | 2,500 | 550 | 650 | 2,500 |
| Over 70 | 600 | 700 | 2,500 | 500 | 650 | 2,500 |
The source of the table is www.mhlw.go.jp/file/04-Houdouhappyou-10904750-Kenkoukyoku-Gantaisakukenkouzoushinka/0000041955.pdf
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