Hidden dangers of your dog’s water

Kristin ClarkGeneral Health, Nutrition3 Comments

Image credit: Bre Altherr

Clean, pure water: a naturopathic principle of health

Naturopathy follows 8 principles of health: proper nutrition; appropriate and adequate exercise; clean, pure water; access to sunshine and (if needed) appropriate supplements; balance and moderation; fresh air; an adequate amount of rest; and trust in the process. Here, we look at the 3rd principle of health: your pet’s need for clean, pure water.  As a general rule, it is important to make sure your pet has access to fresh, pure, clean water at all times.  Notice I said clean, pure water—which is slightly different than just saying fresh water.  We will be looking at the importance of providing chlorine and fluoride-free water (among other things) in this article.  Essentially, if you drink filtered water, give your pet the same.

Isn’t tap water OK for my dog?

Short answer? No. The tap water in most places in America contains chlorine, fluoride, and various (and varying) amounts of dissolved minerals, such as chlorides, sulfates, and bicarbonates.  In addition to these, much of it also contains trace amounts of aluminum, nitrates, insecticides, herbicides, and prescription medications (including antibiotics, anti-convulsants, mood stabilizers, and sex hormones).  There is no required testing for drugs in our water supply, so it is difficult to know exactly what is present and in what amounts, but researchers regularly find the above-listed minerals and chemicals in our water.


Chlorine bleach (in the form of chlorine dioxide) is added to almost all of America’s public water supply as a disinfectant.  This practice began in the early 1900s, when the dangers and long-term effects of chlorine weren’t known, but the practice has continued because it is cheap.    It is not safe, however.  One of the things that chlorine does is neutralize oxygen.  In essence, this means that once it’s inside the body—whether it’s our pet’s body or ours—it depletes the body’s oxygen, which in turn makes the body’s pH levels more acidic.  This disrupts the immune system, which as you know can throw the whole system out of balance and lead to various illnesses and diseases, and cause more allergy symptoms.   It’s interesting to note that water that occurs in nature actually contains small amounts of hydrogen peroxide, which moves the body’s pH to more basic levels.  Natural water was intended to help support the correct oxygen levels and pH balance in our dogs’ and cats’ bodies, as well as ours, and therefore support the immune system.

The ill-effects of chlorine don’t end there.  When chlorine products come into contact with organic proteins, they produce byproducts called trihalomethanes (THMs).  One example of a THM is chloroform, which is a carcinogenic.  In fact, studies have shown an association between THMs and cancers of the liver, kidneys; they have also been shown to be contributing factors in colon and bladder cancers, diabetes, and kidney stones.  Chlorine also damages enzymes, which means that when it is ingested (through the water), it causes further havoc to the immune system.  It can also decrease absorption of calcium while increasing calcium and phosphorous excretion.


Fluoride is also added to the water supply all across America, under the guise that it is good for dental health.  However, there has been a large amount of evidence that shows fluoride to be a bio-accumulative poison when ingested.  The EPA actually classifies fluoride as a toxic waste product (it comes from aluminum processing, uranium processing, and the manufacture of fertilizer), but it is still added to water supplies.  Fluoride is actually used in pesticides, insecticides, and fungicides, as well as being the main ingredient in many rat poisons.  It is worth noting that fluoride is cumulative in its effect upon the body, so each time you or your pet drink fluoridated water, its effects increase.  Some of the most common known effects of fluoride ingestion include cancer, brittle teeth, heart disease, and arthritis.

Other toxins

There is much more in our public water supply than just chlorine and fluoride.  It is interesting to look at a list (in alphabetical order) of the top 100 most common toxins found in the US public water supply:

Top 100 Common U.S. Water Toxins

1) 1,1,1,2-Tetrachloroethane
2) 1,1,2-Trichloroethane
3) 1,1-Dichloroethane
4) 1,1-Dichloropropene
5) 1,2 Dibromo-3-chloropropane (DBCP)
6) 1,2,3-Trichloropropane
7) 1,2,4-Trichlorobenzene
8) 1,2-Dibromoethylene
9) 1,2-Dichloroethane
10) 1,3,5-Trimethylbenzene
11) 1,3-Dichloropropane
12) 1,4-Dioxane
13) 2,2-Dichloropropane
14) 2,4,5-T
15) 2,4,5-TP (Silvex)
16) 2,4-D
17) 2-Hexanone
18) 2-Nitropropane
19) Acetochlor
20) Aldicarb
21) Aldicarb sulfone
22) Aldicarb sulfoxide
23) Alpha-Lindane
24) Aluminum
25) Ammonia
26) Aniline
27) Anthracene
28) Antimony
29) Arsenic
30) Atrazine
31) Barium
32) Benzene
33) Benzo[a]pyrene
34) Beryllium
35) Bromate
36) Bromide
37) Bromobenzene
38) Bromodichloromethane
39) Bromoform
40) Bromomethane
41) Cadmium (total)
42) Carbaryl
43) Carbon tetrachloride
44) Chloroethane
45) Chloroform
46) Chloromethane
47) Chromium
48) cis-1,2-Dichloroethylene
49) Cyanide
50) Dalapon
51) Di(2-Ethylhexyl) adipate
52) Di(2-ethylhexyl) phthalate
53) Dibromochloromethane
54) Dibromomethane
55) Dicamba
56) Dichlorodifluoromethane
57) Dichloromethane (methylene chloride)
58) Dieldrin
59) Dinoseb
60) Endrin
61) Ethylbenzene
62) Ethylene dibromide (EDB)
63) Heptachlor
64) Heptachlor epoxide
65) Hexachloro-cyclopentadiene
66) Isopropylbenzene
67) Lindane
68) m-Dichlorobenzene
69) Manganese
70) Mercury
71) Metolachlor
72) Monochlorobenzene (Chlorobenzene)
73) n-Butylbenzene
74) n-Propylbenzene
75) Naphthalene
76) Nitrate
77) Nitrates & nitrites
78) o-Chlorotoluene
79) o-Dichlorobenzene
80) Oxamyl (Vydate)
81) p-Chlorotoluene
82) p-Dichlorobenzene
83) p-Isopropyltoluene
84) Pentachlorophenol
85) Picloram
86) Radium-226 & Radium-228
87) sec-Butylbenzene
88) Simazine
89) Styrene
90) Sulfates
91) tert-Butylbenzene
92) Tetrachloroethylene
93) Thallium
94) Toluene
95) Total haloacetic acids
96) Total trihalomethanes (THMs)
97) Toxaphene
98) Trichloroethylene
99) Trichlorofluoromethane
100) Vinyl chloride

What to do?

So how do you make sure that you are providing your pets with clean, pure water?  The best way to do this is to provide them with filtered water.  Unfortunately, not all filters are created equal, nor are all bottled waters truly pure.  Many are actually just tap water that has been bottled, and some of them contain fluoride and various minerals.  Check the label to see if chlorine or fluoride has been added back in.  Also, note that Brita water filters often do not completely remove chlorine and fluoride.  Reverse osmosis filtration systems and the Berkey filter (with the optional fluoride filters) are good alternatives.  They are more expensive, but if you are able to get them, they are a good option.  You can also get bottled spring water that is in a safe plastic bottle; well water is also a great option if you have access to a well.

If you haven’t already, invest in a stainless steel bowl for your pets to drink out of.  Just like with their food dishes, plastic bowls can harbor bacteria and leach chemicals out.  Make sure that you clean and refill the water dish daily, or whenever it gets low.

Clean, pure water makes a big difference!

It is vitally important that you provide your pets with clean, pure water.  Doing so helps keep all of their systems, including their immune system, healthy.  It supports their bodies in maintaining balance and health, and may even encourage them to drink more.  Following this principle is part of the total approach to helping your pets achieve and maintain true, lasting health, so that they can thrive throughout all your years together.

3 Comments on “Hidden dangers of your dog’s water”

  1. My dogs are on a automatic horse water system hooked up to a faucet. There must be a food filter to put on it
    At the hose bib? Anither project fornisnto work on. Hahahah

  2. We finally found a great filter that is actually for motorhomes that hooks up to the outside faucet then filters water into their bowl! Replacement filters are only $20 and they are automatically delivered every 3 months so I dont have to worry about forgetting to change them! Thanks for this article

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