Water is the essence of life, the tincture upon which our bodies rely for every function, from regulating temperature to eliminating waste. But not all water is created equal. In recent years, one water type that has garnered attention is alkaline water. Advocates claim a myriad of health benefits, from improved digestion to increased energy levels. But what does science say? This article will delve into the potential health benefits of drinking alkaline water and examine what experts think about its long-term impact on our well-being.
Understanding Alkaline Water
Before we dive into the benefits, let’s understand what alkaline water is. The term ‘alkaline’ refers to its pH level—a number that measures how acidic or alkaline a substance is on a scale of 0 to 14. Anything below 7 (such as lemon juice) is considered acidic, 7 is neutral (pure water), and above 7 (like baking soda) is alkaline. Alkaline water typically has a higher pH than regular drinking water and often contains alkaline minerals and negative oxidation-reduction potential (ORP).
Potential Health Benefits
1. Hydration and Water Absorption
Enhanced Hydration: Alkaline water, with its smaller molecular content, is said to be absorbed more easily by the cells, leading to improved hydration. This can be especially beneficial for those who engage in intense physical activity and need to stay well-hydrated to maintain peak performance.
2. Acid-Base Balance in the Body
Neutralizing Acidity: Modern diets, which are often high in acidic foods, can disrupt the body’s natural pH balance. Consuming alkaline water might neutralize the excess acidity in the body and help maintain a healthier pH level.
3. Antioxidant Effects
Fighting Free Radicals: Alkaline water contains negative ORP, which means it could act as a proponent of anti-oxidation. This could aid in combating free radicals, thereby potentially preventing cell damage and contributing to better health.
4. Bone Health
Supporting Bone Density: Some research suggests that alkaline water may have a positive effect on bone health. A 2014 study published in the ‘Journal of Bone and Mineral Metabolism’ found that consumption of alkaline water could help to reduce bone resorption, which is the process where bone is broken down, and minerals are released into the bloodstream.
5. Gastrointestinal Benefits
Improved Digestion: Anecdotal evidence suggests that alkaline water might improve gastrointestinal function and alleviate symptoms associated with conditions like acid reflux.
6. Enhanced Metabolism and Energy Levels
Metabolic Boost: By buffering acidity and consequently improving the body’s metabolic processes, alkaline water may contribute to increased energy levels and better metabolism.
7. Detoxification
Detoxifying Properties: Alkaline water is often associated with better excretion of waste products, which can aid in detoxifying the body and promoting overall health.
The Skepticism and Limitations
While there are enthusiasts extolling the virtues of alkaline water, the scientific community remains skeptical about its widespread claims. A comprehensive review of studies published in the ‘Journal of Human Nutrition and Dietetics’ in 2016 found that there is not enough evidence to support the use of alkaline water as a health intervention. Moreover, our bodies are equipped with impressive mechanisms, such as the kidneys and lungs, to maintain pH balance.
Sources of Alkaline Water
For those interested in trying alkaline water, there are different sources, including:
- Water Ionizers: These devices raise the pH of water through electrolysis.
- Alkaline Water Filters: Some water filters are designed to add minerals to the water, increasing its alkalinity.
- Bottled Alkaline Water: It’s readily available in stores but could be expensive and contribute to plastic waste.
- Natural Alkaline Water: Found in some springs and wells where the water has a higher pH naturally because of dissolved minerals.
Final Thoughts
Whether or not alkaline water can significantly improve health is a question with varying opinions. But, as with anything related to well-being, moderation is key. If you’re considering incorporating alkaline water into your lifestyle, it may be best to do so in addition to a balanced diet and adequate regular water intake.
References:
- Wynn, E., Krieg, M. A., Aeschlimann, J. M., & Burckhardt, P. (2009). Alkaline mineral water lowers bone resorption even in calcium sufficiency: alkaline mineral water and bone metabolism. Bone, 44(1), 120-124. https://doi.org/10.1016/j.bone.2008.09.007
- Schwalfenberg, G. K. (2012). The alkaline diet: Is there evidence that an alkaline pH diet benefits health? Journal of Environmental and Public Health, 2012. https://doi.org/10.1155/2012/727630
- Fenton, T. R., & Huang, T. (2016). Systematic review of the association between dietary acid load, alkaline water and cancer. BMJ Open, 6(6), e010438. http://dx.doi.org/10.1136/bmjopen-2015-010438