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Mineral Water Question

August 17, 2012 Written by JP       [Font too small?]

I was recently contacted by a young lady whose mother has osteoporosis. I was told that she’s unable to have dairy and many calcium-fortified foods such as orange juice and soy products. In addition, she has a difficult time swallowing pills. On the other hand, she very much enjoys mineral water. Her question to me was, “Can I drink mineral water instead of taking a calcium supplement?”.

Before I delve into the mineral water issue, please note that there is almost always a way to incorporate adequate amounts of calcium in your daily routine via fortified and whole foods. For instance, non-dairy foods including collard greens, sardines and sesame seeds provide upwards of 25% of the Daily Value (DV) of this essential mineral. Likewise, milk substitutes made from almonds, coconuts and hemp seeds are frequently fortified with up to 45% of the DV per 8 oz serving. There are also quite a few chewable or liquid calcium supplements available in most health food stores and pharmacies. Simply put, there really isn’t a practical reason why one can’t get optimal amounts of calcium on a daily basis.

In terms of mineral water, the data is fairly straight forward. Mineral waters that are rich in calcium (providing a minimum of 342 mg of calcium/day) support bone mineral density in women who are deficient in the nutrient. Some evidence indicates that alkaline water, abundant in naturally occurring bicarbonate, may also slow the rate of bone breakdown. What’s more, several studies have demonstrated that calcium contained in mineral water is at least as bioavailable as dairy-derived calcium. A controversy that has yet been resolved is the role of trace minerals in select mineral waters. One example is silica, a trace element which has shown some benefit in relation to joint and skeletal integrity. A 12 week study appearing in the October 2010 issue of the Nutrition Journal determined that silica is easily absorbed from mineral rich water. However, the added silica intake “did not affect bone turnover markers in the short-term”.

The bottom line is that mineral rich water can be a good source of dietary calcium. But, reading labels to determine calcium concentration is vitally important. The disparity between calcium levels in various mineral waters can be significant. It also bares mentioning that the key to success with mineral water is consistency. For some, chewing or swallowing a daily calcium supplement may be easier to do than drinking a few glasses of mineral water each and every day. Finally, please remember that there is a whole host of other nutrients, including magnesium, Vitamins D and K, which benefit the skeletal system and generally aren’t found in mineral water. So, don’t place all of your eggs in one basket and assume that mineral water alone is enough to stave off osteopenia and osteoporosis.

To learn more about the studies referenced in today’s column, please click on the following links:

Study 1 - Consumption of a High Calcium Mineral Water Lowers Biochemical (link)

Study 2 - Calcium Bioavailability from a Calcium-Rich Mineral Water, with Some(link)

Study 3 - Biological Effects of Drinking-Water Mineral Composition on Calcium (link)

Study 4 - Mineral Water as a Source of Dietary Calcium: Acute Effects on (link)

Study 5 - Association Between Calcium Ingested from Drinking Water and Femoral(link)

Study 6 – Effect of Calcium Supplementation as a High-Calcium Mineral Water (link)

Study 7 – Absorption of Silicon from Artesian Aquifer Water and its Impact (link)

Study 8 - Alkaline Mineral Water Lowers Bone Resorption Even in Calcium (link)

Study 9 - Sodium-Bicarbonated Mineral Water Decreases Aldosterone Levels (link)

Study 10 - Bone Remodeling is Not Affected By Consumption of a Sodium-Rich (link)

High-Calcium Water Modulates Bone Metabolism via Parathyroid Function

Source: Am J Clin Nutr. 2000 Apr;71(4):999-1002. (link)

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Posted in Bone and Joint Health, Food and Drink, Nutrition

5 Comments & Updates to “Mineral Water Question”

  1. rob Says:

    I did not know that

    I guess its a soucre but not the best, sardines are supposed to be high in calcuim as well as the otehr vitamins you mentioned.

  2. JP Says:

    Hi Rob,

    You’re absolutely right. Sardines are an excellent source of calcium and a good source of various bone-supportive nutrients including Vitamins B12 and D. I highly recommend them.

    Be well!


  3. Ted Hutchinson Says:

    I quite like this home made magnesium mineral water AFIBBERS Recipe for Magnesium/Bicarbonate Water

    In the UK your water authority usually has a website enabling you to learn the calcium/magnesium content of your tapwater.

    Online calculators or nutritional databases will help you work out if you are meeting the RDA for calcium & magnesium. I think it’s important to stress Dietary Calcium is Superior to Supplements for Protecting Bones

    We also have to remember vitamin d 25(OH)D level at or above 32ng/ml ~ 80nmol/l enables optimum calcium uptake for most people.

  4. JP Says:

    Many thanks for sharing that, Ted. Excellent information as usual. :-)

    Be well!


  5. JP Says:

    Update 05/13/15:


    Appetite. 2015 May 8. pii: S0195-6663(15)00228-7.

    Habitual total water intake and dimensions of mood in healthy young women.

    Acute negative and positive mood states have been linked with the development of undesirable and desirable health outcomes, respectively. Numerous factors acutely influence mood state including exercise, caffeine ingestion, and macronutrient intake, but the influence of habitual total water intake remains unknown. The purpose of this study was to observe relationships between habitual water intake and mood. 120 healthy females (mean±SD; age=20±2 y, BMI=22.9±3.5 kg⋅m-2 ) recorded all food and liquids consumed for 5 consecutive days. Investigators utilized dietary analysis software to determine Total Water Intake (TWI; total water content in foods and fluids, coffee ingestion, and macronutrient consumption (i.e. protein, carbohydrate, fat)). On days 3 and 4, participants completed the Profile of Mood State (POMS) questionnaire which examined tension, depression, anger, vigor, and confusion, plus an aggregate measure of Total Mood Disturbance (TMD). For comparison of mood, data were separated into three even groups (n=40 each) based on TWI: low (LOW; 1.51±0.27 L/d), moderate (MOD; 2.25±0.19 L/d), and high (HIGH; 3.13±0.54 L/d). Regression analysis was performed to determine continuous relationships between measured variables. Group differences (p<0.05) were observed for tension (MOD=7.2±5.4, HIGH=4.4±2.9), depression (LOW=4.5±5.9, HIGH=1.7±2.3), confusion (MOD=5.9±3.4, HIGH=4.0±2.1), and TMD (LOW=19.0±21.8, HIGH=8.2±14.2). After accounting for other mood influencers, TWI predicted TMD (r2 = 0.140; p=0.050). The above relationships suggest the amount of water a woman consumes is associated with mood state.

    Be well!


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