Wednesday, November 17, 2010

Calcium Misconceptions

Everyone knows how important calcium is for the body.  However, there are a lot of misconceptions.
First, it’s important to know is that you can’t always absorb all of the calcium that you consume.  The least absorbable is calcium carbonate , which is also most commonly used in supplements.  I’ve seen situations where people are taking high amounts of calcium but only absorbing 15 percent.  (The most absorbable form of calcium is calcium lactate.)
No one should ever take more calcium than the body needs.  When you take more than needed, it can cause problems or the body just eliminates it.  So, you’re either wasting money or creating health problems, or both.
Many people believe that milk is one of the best sources of calcium.  However when milk is pasteurized, proteins are destroyed that help you absorb calcium.  In general, the more heavily processed a food is, the less beneficial it is for your body.
Some foods are more nutritious cooked and some are more nutritious raw—including the amount and absorption of calcium.  I work with patients to use food and supplements to get 1,000 mg of calcium/day.
Below is a list of foods and the amount of calcium in each (mg).
Low fat yogurt with 1 cup of fruit                                448
3.5 oz canned salmon with bones                              380
2 Tbl blackstrap molasses                                             350
1 cup of skim milk                                                            300
1 cup soft-serve ice milk                                                                274
1 oz Swiss cheese                                                              272
1 cup frozen yogurt                                                          240
3.5 oz sardines with bones                                            240
1 oz cheddar cheese                                                         204
1 cup vanilla ice cream                                                   176
½ cup cooked rhubarb                                                   174
1 cup of 2% cottage cheese                                            155
½ cooked (previously frozen) spinach                     140
½ cup soy nuts                                                                 119
½ cup collard greens                                                      120
½ cup almonds                                                                 92
½ navy or baked beans                                                 64
½ mustard greens                                                           51
1 medium orange                                                             52
½ cup okra                                                                         50
3 oz baked halibut                                                           51
½ cup cooked fresh broccoli                                        42

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