Is alkaline water better for you than plain water?

Answer From Katherine Zeratsky, R.D., L.D.

For most people, plain water is better.

Bottled water sold as alkaline water is subject to regulation by the U.S. Food and Drug Administration. Alkaline water sometimes has nutrients added to it to achieve an alkaline pH.

Scientists use pH to describe how acidic a substance is on a scale of 0 to 14. By definition, a substance is alkaline if it has a pH of over 7.

Because alkaline water has a higher pH level than does plain tap water, proponents say that it can neutralize acid in your bloodstream. However, research suggests that alkaline water is unlikely to significantly change blood pH.

Some studies suggest that alkaline water might help slow bone loss, but it's not clear if the benefit is maintained over the long term.

Some say that alkaline water can help prevent disease, such as cancer and heart disease. However, there's little credible evidence to support such claims.

March 28, 2020 See more Expert Answers

See also

  1. MIND diet may cut Alzheimer's risk
  2. 3 diet changes women over 50 should make right now
  3. 3 key changes in the new Nutrition Facts label
  4. Healthy-eating habits
  5. Reduce sugar in your diet
  6. Acai berries
  7. Added sugar
  8. Alcohol use
  9. Are energy drinks bull?
  10. Artificial sweeteners and other sugar substitutes
  11. Autism spectrum disorder and digestive symptoms
  12. Bad food habits at work? Get back on track in 5 steps
  13. Best oil for cooking?
  14. Dietary guidelines
  15. Boost your calcium levels without dairy? Yes you can!
  16. Breast-feeding nutrition: Tips for moms
  17. Caffeine: How much is too much?
  18. Is caffeine dehydrating?
  19. Calorie calculator
  20. The role of diet and exercise in preventing Alzheimer's disease
  21. Can whole-grain foods lower blood pressure?
  22. Carbohydrates
  23. Chart of high-fiber foods
  24. Cholesterol: Top foods to improve your numbers
  25. Coconut water: Healthy drink or marketing scam?
  26. Coffee and health
  27. Diet soda: How much is too much?
  28. Dietary fiber
  29. Prickly pear cactus
  30. Does soy really affect breast cancer risk?
  31. Don't get tricked by these 3 heart-health myths
  32. Don't go cuckoo for coconut water
  33. Make healthy snack choices
  34. Eat more of these key nutrients
  35. Eggs: Bad for cholesterol?
  36. Energy drinks
  37. Fiber: Soluble or insoluble?
  38. Fish and polychlorinated biphenyls (PCBs)
  39. Fit more fiber into your diet
  40. Get to know the new Nutrition Facts label
  41. Grape juice health benefits
  42. Guidelines for a good ileostomy diet
  43. Is chocolate healthy?
  44. Healthy heart for life: Avoiding heart disease
  45. Healthy-eating tip: Don't forget fiber
  46. High-fructose corn syrup
  47. High-protein diets
  48. Alcohol during the holidays: 4 ways to sip smarter
  49. Holiday weight: How to maintain, not gain
  50. How the right diet can help an overactive bladder
  51. How to track saturated fat
  52. Takeout containers
  53. Is there more to hydration than water?
  54. Juicing is no substitute for whole foods
  55. Juicing
  56. Depression and diet
  57. Limit bad fats, one step at a time
  58. Make food labels required reading
  59. Monosodium glutamate (MSG)
  60. MUFAs
  61. Multigrain vs. whole grain
  62. Need a snack? Go nuts!
  63. Need more fiber? Take 3 steps
  64. Nutrition Facts label
  65. Nutrition rules that will fuel your workout
  66. Nuts and your heart: Eating nuts for heart health
  67. Omega-3 in fish
  68. Omega-6 fatty acids
  69. Phenylalanine
  70. Play it safe when taking food to a loved one in the hospital
  71. Protein: Heart-healthy sources
  72. Reduce sugar in your diet
  73. Health foods
  74. Portion control
  75. Planning healthy meals
  76. High-fiber diet
  77. Social eating can be healthy and enjoyable
  78. Sodium
  79. Sodium: Look beyond the saltshaker
  80. Stevia
  81. Tap water or bottled water: Which is better?
  82. Taurine in energy drinks
  83. The best foods for healthy skin
  84. Time to cut back on caffeine?
  85. Time to scale back on salt?
  86. Trans fat
  87. Underweight: Add pounds healthfully
  88. Want a healthier dinnertime? Science says change your eating space
  89. Daily water requirement
  90. Functional foods
  91. What is clean eating?
  92. What's considered moderate alcohol use?
  93. What's the difference between juicing and blending?
  94. Why does diet matter after bariatric surgery?
  95. Working out? Remember to drink up
  96. Yerba mate