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Got the facts on Calcium?

We have all been subject to the relentless advertising over the years pushing dairy products as THE source of calcium. A multibillion dollar industry depends on you buying into it. However, the facts just don’t measure up. Dairy intake does not correlate with bone strength. Many countries with very low dairy intake have the lowest osteoporosis rates and vice versa. In fact, not only does one cup of steamed collard greens contain as much calcium as one cup of cow’s milk, the calcium is much more absorbable. These lean greens are also some of the richest sources of antioxidants available, and they contain zero fat, saturated or otherwise. The trouble is that the average vegetable just doesn’t have a decades-old politically influential industry and lobby groups to back it up. Luckily, many people are starting to wise-up. Kale chips are in, and big agri-business telling us what to eat is out. Even Harvard University now recommends that people choose plant-based sources of calcium over dairy. Get the facts on Calcium below.

Download our "How to get your Calcium from a Plant-based Diet' brochure.

To protect your bones you do need calcium in your diet, but you also need to keep calcium in your bones.

How to get Calcium into your bones

Greens, beans, or fortified foods.

The most healthful calcium sources are green leafy vegetables and legumes, or "greens and beans" for short. Broccoli, Brussels sprouts, collards, kale, mustard greens, Swiss chard, and other greens are loaded with highly absorbable calcium and a host of other healthful nutrients. The exception is spinach, which contains a large amount of calcium but tends to hold onto it very tenaciously, so that you will absorb less of it.

Beans are humble foods, and you might not know that they are loaded with calcium. There is more than 100 milligrams of calcium in a plate of baked beans. If you prefer chickpeas, tofu, or other bean or bean products, you will find plenty of calcium there, as well. These foods also contain magnesium, which your body uses along with calcium to build bones.

If you are looking for a very concentrated calcium source, calcium-fortified orange or apple juices contain 300 milligrams or more of calcium per cup in a highly absorbable form. Many people prefer calcium supplements, which are now widely available.

Dairy products do contain calcium, but it is accompanied by animal proteins, lactose sugar, animal growth factors, occasional drugs and contaminants, and a substantial amount of fat and cholesterol in all but the defatted versions.

Exercise, so calcium has somewhere to go.

Exercise is important for many reasons, including keeping bones strong. Active people tend to keep calcium in their bones, while sedentary people lose calcium.

Vitamin D from the sun, or supplements

Vitamin D controls your body's use of calcium. About 15 minutes of sunlight on your skin each day normally produces all the vitamin D you need. If you get little or no sun exposure, you can get vitamin D from any multiple vitamin. The Recommended Dietary Allowance is 600 IU (5 micrograms) per day. Vitamin D is often added to milk, but the amount added is not always well controlled.

How to Keep It There

It's not enough to get calcium into your bones. What is really critical is keeping it there. Here's how:

Reduce calcium losses by avoiding excess salt.

Calcium in bones tends to dissolve into the bloodstream, then pass through the kidneys into the urine. Sodium (salt) in the foods you eat can greatly increase calcium loss through the kidneys.If you reduce your sodium intake to one to two grams per day, you will hold onto calcium better. To do that, avoid salty snack foods and canned goods with added sodium, and keep salt use low on the stove and at the table.

Get your protein from plants, not animal products.

Animal protein in fish, poultry, red meat, eggs, and dairy products tends to leach calcium from the bones and encourages its passage into the urine. Plant protein in beans, grains, and vegetables does not appear to have this effect. 

Don't smoke.

Smokers lose calcium, too. A study of identical twins showed that, if one twin had been a long-term smoker and the other had not, the smoker had more than a 40 percent higher risk of a fracture. 

American recommendations for calcium intake are high, partly because the meat, salt, tobacco, and physical inactivity of American life leads to overly rapid and unnatural loss of calcium through the kidneys. By controlling these basic factors, you can have an enormous influence on whether calcium stays in your bones or drains out of your body.


Did you know?

Most humans have some degree of lactose intolerance. For them, eating or drinking dairy products causes problems like cramping, bloating, gas, and diarrhea. These symptoms can range from mild to severe. Certain groups are much more likely to have lactose intolerance. For example, 90 percent of Asians, at least 70 percent of blacks and First Nations, and approximately 50 percent of Hispanics, Jews and people from Southern India are lactose intolerant, compared to only about 15 percent of people of Northern European descent. To suggest that dairy is a necessary part of our diet is to ignore that most humans are unable to digest it and cannot possibly require it to have a healthy life. More on food equity here.

 

 Calcium and Magnesium in Foods
(in approximate milligrams)u

Food Source  Calcium  Magnesium
Collard Greens
(1 cup, steamed)   
358
52
Soy Milk, unsweetened (1 cup)
299
152
Tofu, calcium-set
(1/2 cup)
258
118
Tempeh (1 cup) 184
134
Soybeans / Edamame (1 cup) 175
148
Oatmeal, instant
(1 packet)
163
35
White beans (1 cup)
161
113
Figs, dried (5)
135
56
Baked beans (1 cup)
128
82
Black beans (1 cup)
103
91
Almonds (1/4 cup)
92
98
Broccoli
(1 cup, steamed)  
94
38
Kale (1 cup boiled)  
94
24
Chick peas
(1 cup, canned)
80
78



     


Recommended daily amounts (Health Canada)
AGE    CALCIUM        VITAMIN D
Infants      200-260 mg    400 IU (10 mcg)
Children    700-1000 mg    600 IU (15 mcg)
Teens       1300 mg        600 IU (15 mcg)
Adults      1000-1200 mg    600 IU (15 mcg)
Seniors    1200 mg        800 IU (20 mcg)
Slightly higher for pregnant and lactating women.


Combining Calcium and Vitamin D

 

To ensure optimum absorption of dietary Vitamin D, you’ll not only want to ensure that good sources of calcium are included in your diet, but included in the same meal!

 

Here Are Some Ways To
Combine Vitamin D and Calcium:

  •  Pulse sunflower seeds and almonds into a dip or paste
  •  Thinly shave broccoli florets and toss with sprouted seeds into a salad
  •  Blend up a mushroom pate and spread on collard greens, then roll them up to eat!
  •  Add nuts, seeds, and plenty of dark leafy greens to a child-friendly green smoothie
  •  Blend silken tofu with fruit puree into vegan “yogurt”, top with crushed nuts and seeds

 

Vegan Plant Sources of Calcium:

  • Almonds
  • Broccoli
  • Buckwheat
  • Dark leafy greens
  • Vegetables
  • Soybeans

Vegan Plant Sources of Vitamin D:

  •  Sunflower seeds
  •  Mushrooms
  •  Sprouted seeds



EARTHSAVE CANADA ~ Save the earth one bite at a time

Earthsave Canada is a Vancouver-based charity, helping people choose foods that benefit our health, the environment, and the lives of animals.

MAILING ADDRESS: Earthsave Canada PO Box 2213 STN Terminal Vancouver, BC V6B 3W2 | office@earthsave.ca | 604-731-5885 

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