Skelly and I love to quench our thirst. Instead of reaching for filtered water, we drink one 750mg bottle of Gerolsteiner Mineral Water. Not only for the bioavailability of calcium and magnesium but because mineral water offsets a highly-acidic Western diet characterized by high grains and animal products. Drinking 1,500-2,000 mL of mineral water rich in bicarbonate (>1.8 g/L) can help reduce the net dietary acid load. 
Personally, I am a mostly grain-free animal protein eater. Animal protein keeps me grounded. Otherwise, I float away and my brain does not function in a sharp way. Not everyone eats this way as we are all individuals with different dietary needs. Vegetarians typically eat more grains which are more acidic.
"Eating a high acid diet may cause low-grade metabolic acidosis (LGMA) that is associated with negative effects on health in the long run, including urolithiasis, bone loss, and even cardiometabolic diseases". 
Gerolsteiner Sparkling Mineral Water contains 1800 mg of bicarbonate (1.8 g/l). Please note: Each bottle of Gerolsteiner is 750 ml, which means you would need to drink 2 bottles to equal this amount of bicarbonate.
"Bicarbonate (hydrogen carbonate) is not a mineral, but a component of the salts of carbonic acid. HCO3- is its chemical formula. Your body produces bicarbonate.
Daily requirement: Unlike many essential nutrients, for example, calcium and magnesium, your body can generate bicarbonate, but generally in insufficient amounts for optimum health and wellness. There is no recommended daily allowance".
According to the Gerolsteiner website "The unique balance of minerals in Gerolsteiner ensures their bioavailability. The minerals are already dissolved, so your body can absorb them quickly.
The ratio of minerals, especially calcium and magnesium, also enables maximum usage. In mineral water, the bioavailability of calcium is 84% and that of magnesium is 92%. As a comparison, in a banana, the bioavailability of calcium is only 38% and that of magnesium is a mere 29%."
"Over time water seeps down through the mineral-rich layers of dolomite bedrock, absorbing minerals and carbonic acid, before collecting in deep aquifers as Gerolsteiner Mineral Water. From the depths of the Volcanic Eifel to every cell of your body: one liter of Gerolsteiner Sparkling Mineral Water contains over 2,500 mg of minerals and trace elements.
Adding a slice of lemon, fresh berries, mint, or even a drop of orange therapeutic essential oil and suddenly my refreshing drink is transformed. Pour your water in a beautiful glass, relax, sip and find yourself participating in mindful pleasure for your bones and your health.
During the Natural Approaches to Osteoporosis Summit, a question arose as to which kind of calcium is in Gerolsteiner water. Below is from the company.
"All mineral waters differ from each other. The degree and type of mineralization of every mineral water depends on the composition and layers of rock that the water has percolated through. Germany’s most popular mineral water comes from a source in Western Germany: the Volcanic Eifel region, which boasts a unique geological profile.
Deep underground, as precipitation seeps down from the earth’s surface, it absorbs the carbonic acid present due to ancient volcanic activity. This water then passes through layers of dolomite, a limestone rock which contains calcium and magnesium - this geology is specific to the Gerolstein region. The carbonic acid dissolves valuable calcium and magnesium from the otherwise almost insoluble dolomite - this is how mineral water of an exceptional quality is created."
For more information, you can take a look at their website: Gerolsteiner USA -
About Gerolsteiner (gerolsteiner-usa.com).
This 81-page interactive (completely clickable to navigate to all different sections) ebook will provide what you, my readers have been asking for:
From my bones to yours,
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Irma Jennings, INHC
Your Holistic Bone Coach https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6901030/  https://www.webmd.com/a-to-z-guides/qa/what-is-bicarbonate
This handy infographic is great to have posted on your fridge.
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