Tuesday

What You Should Know About Water: Myths vs. Facts

Of course we know that water is beneficial to our bodies. But beyond that, what do we really know about the myths and facts of water consumption?

First, do we really all need to drink eight glasses of water a day? No. Most recently, the Institute of Medicine recommended that women should try to drink about two liters (8 glasses) a day and men should aim for three liters (12 glasses) of any fluid, including—but not limited to—water. “‘No one can figure out where this ‘eight glasses of water’ came from, but I believe it came from the old RDA [recommended daily allowance] for water that matched water requirements to calorie requirements,’ notes Georgie Chavent, MS, RD, director of the Nutrition and Dietetics Program at the University  of New Haven in West Haven, Conn. ‘The new requirement from the Institute of Medicine is much more generous and includes recommendations for total beverage consumption, not just water.’”[1]

It is actually a fact that drinking water flushes toxins from your body. Your kidneys use water to get rid of certain waste products, and if you don’t get enough, the kidneys don’t have the fluid they need to do their job effectively. Ultimately, your body would be holding on to toxins instead of expelling them.

You may have heard that bottled water causes tooth decay. This one’s a myth. Rather, bottled water doesn’t contain fluoride, which is added to tap water to aid in the prevention of tooth decay. The more people consume bottled instead of tap water, the less fluoride they’re likely getting, which can lead to an increase in dental cavities. Cavities are a relatively small price to pay versus the dangers of fluoride ingestion. We will explore this topic further in a future blog post.

 This one is interesting, as drinking water has long been touted as a remedy for dry skin: water actually does not help keep skin moist. The only time that levels of water intake will affect your skin is if you’re severely dehydrated. Environmental factors like weather, the products and methods you use to clean your skin, and the function of your oil-producing glands have much more to do with your skin condition than internal factors like drinking water. The water you drink does not reach the top layer of your skin.

Drinking water may not make you lose weight in and of itself, but it does aid in the process. If you’re drinking more water and replacing sugary, calorie-filled drinks with it, ultimately your overall number of calories will be reduced. Also, drinking water (especially cold water) can make you feel fuller so you’ll eat less, and it may even increase your metabolism. “‘A new study seems to indicate that drinking water actually speeds up weight loss,’ says Tanya Zuckerbrot, MS, RD… ‘Researchers in Germany found that subjects of the study increased their metabolic rates [or the rate at which calories are burned] by 30 percent after drinking approximately 17 ounces of water.’”[2]

Just because you’re thirsty, it doesn’t mean you’re already dehydrated. If you’re thirsty, you should obviously grab a glass of water, but thirst begins when the concentration of substances in the blood has risen by less than 2 percent.[3] Experts define dehydration as when that same concentration has risen by at least 5 percent.[4]

It is a fact that you should not reuse plastic water bottles. They can leak chemicals into your water if you use them multiple times, and if the bottle isn’t cleaned properly, it can grow bacteria from your mouth.

While it’s important to get a healthy daily intake of fluids, it’s also crucial to know the facts and fictions of what you’ve heard about water your whole life rather than listening unquestioningly.

“Working to restore GOD’s perfect design in you!”



[1] Myers W. “10 Myths and Facts About Water.” Everyday Health.com February 27, 2013.
[2] Id.
[3] Id.
[4] Id.

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