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How much water should you drink a day?

✅ Evidence-based | By DMP Nutritionists | 22 Comments
Table of Contents[Hide][Show]
  • Water keeps our body functioning
  • Water Helps Avoid The Side Effects Of Dehydration
  • Can Drinking Water Help Lower Blood Sugar?
  • So how much water should you drink a day?
  • Best Water Bottles To Use
  • Can I Flavor Water?
  • Practical Tips To Get Enough Water Everyday

Reader Question:

“I have a question about how much water should you have in a day and if you drink it in a sport bottle what size should it be? And if you put stuff in it like flavored stuff is that ok?”

Great questions. 🙂

Let’s chat about how much water you should drink per day if you’re a diabetic, how it can help, and how to get your quota in every day.

how much water to drink per day for diabetes

Water keeps our body functioning

Here are some of the important things water does for your body:

  • Carries nutrients and waste products
  • Maintains the structure of molecules in the body
  • Helps metabolic functions
  • Helps minerals, vitamins, amino acids, glucose and other molecules perform their job
  • Needed for body temp regulation
  • Maintains blood volume, which has an influence over blood pressure and blood glucose

As you can see, the body needs it for quite a few important things and yet most of us don’t get enough water every day.

Water Helps Avoid The Side Effects Of Dehydration

By the time you feel like you have a dry mouth you are already dehydrated. You see, there’s a time delay between your body’s water needs and your sensory awareness. Being thirsty is the first sign that your body is already lacking 1-2% body water. 

That’s why we need to be sipping it all throughout the day. Otherwise we’re doing catch up or might suffer some of the consequences.

One surprising consequence of dehydration is more aches and pains. Water actually acts as a lubricant and cushion around joints and the spinal cord, so dehydration can contribute to increased inflammation and more aches and pains.

If you have been feeling tired and fatigued, disoriented, lack concentration, or feel grumpy. Or if you suffer from headaches, migraines, or depression, ask yourself if you’re drinking enough water.

You may not relate these things to dehydration but sometimes that’s all it is. Look to the simple things for solutions first, because you might just be surprised how many things do have a simple solution.

Can Drinking Water Help Lower Blood Sugar?

The short answer: Yes.

Blood sugar is measured by milligrams per deciliter or millimoles per liter (depending where you live). Quite simply, 60% of the body is made up of water and a large percentage of that is in our blood, which is a liquid. When you drink water it helps to increase your blood volume and ‘dilute’ the glucose in the bloodstream.

how much water to drink per day for diabetes

If you imagine the thickness of honey or another sugary syrup, you will recall that it is very sticky, thick, and sludgy. This is exactly what happens to your blood when it is high in glucose and is why you can feel so tired and fatigued.

When your blood is thick and sludgy it’s not moving through your body as it should and there’s not enough oxygen getting through to all your cells either.

Drinking plenty of water helps with all these issues. So if you find your blood sugar levels are high, try drinking more water because it really does help.

So how much water should you drink a day?

The general recommendation is at least 8 glasses per day. I find about 1.5-2 liters/ 50-70 oz per day works well.

Seems like a lot I know, and at first it’s a bit hard to get used to drinking that much. But when you do it consistently you do notice you feel better overall.

Best Water Bottles To Use

If you use a sports drink bottle it doesn’t really matter how big it is. When it’s empty, refill it!

But when it comes to choices, there are better quality bottles.

nalgene-water-bottle

BPA free bottles are about the same price as regular sports water bottles and they are far better for our health. For example, Nalgene has a 1 quart/ 950 ml BPA free bottle for $10.42. Compared to the Nike Hang Tag sports water bottle at $8 for a 20 oz/ 600 ml bottle and it’s not BPA free.

“Bisphenol A (BPA) is a chemical used in the lining of some food and beverage packaging”, it’s commonly found in many plastics. Although food standards claim that BPA is safe, studies have shown that BPA can in fact have negative consequences for our health.

It has been shown that small amounts of BPA can migrate from food containers and into foods and water, which is why being choosy is worth it – especially since our water sits in the bottle all day and sometimes in hot and cold environments.

So given the cost, I’d go for a BPA free water bottle every time – you can pick them up from $2-10.

Can I Flavor Water?

I’d always recommend to just drink water but I know many people can’t stand that, so if you want to flavor it with something then go for it.

Your best options for simple flavorings will be things like lemon or lime juice, or some fruit flavored herbal tea.

stur-natural-water-flavoring

You could try something like Stur, which is a stevia sweetened fruit flavor specifically designed to add to water. There are quite a lot of water flavorings on the market. You really just want to look for the most natural options or you’ll defeat the purpose of drinking water in the first place.

Definitely avoid cordials and sugar filled fruit juices because that’s not going to help you with blood sugar control, which is the whole purpose of drinking more water – well an important purpose anyway. 🙂

Practical Tips To Get Enough Water Everyday

  • Have a glass of water first thing in the morning when you wake up.
  • Every time you pass a water fountain, take a sip.
  • Fill up a bottle and carry it with your everywhere you go so you can constantly sip on it throughout the day.
  • Have a small glass before meals.
  • Drink a bit more water before and after exercise
  • Just drink water

So have you been drinking enough water everyday? Or now that you know it can help with blood sugar control, will you start drinking more?

Please share this info to help others – thanks!

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💬 22 Comments - Join the conversation, leave yours below

Reader Interactions

Comments

  1. PAULINE HADA

    11/12/2018 at 10:38 pm

    I drink only 4 16.5 flavor water am I drinking a enough.i am on a low carb diet

    Reply
    • Emily - Dietitian (MS, RD)

      11/13/2018 at 8:30 pm

      It may be enough, but it also depends on your size/weight and activity level. Two easy “check-in” methods are the color of your urine (should be a light straw color, if it’s dark you need more water) and noticing how you feel (if you feel thirst, it’s not enough water.)

      Reply
  2. Jacqueline Rosser

    11/04/2018 at 2:50 am

    I am a diabetic who drinks a lot of water in any given day I consume at least 128 ounces sometimes more. I have a soda stream as I am hooked on the bubbles. I used to drink a lot of coke zero but switched to “better bubbles” . I add just a touch of Dysani for a bit of flavoring. Am I drinking too much? I am yrying to control my blood sugar levels as they have been high.

    Reply
    • Emily - Dietitian (MS, RD)

      11/05/2018 at 6:26 pm

      You may be drinking so much water because your blood sugar is high, therefore instead of just chugging more water the better solution is to get to the root of your problem and lower your blood sugar!

      Have you tried following a lower carbohydrate diet, if not I would encourage you to consider trying. Based on science a low carb diet has been shown to be one of the most effective ways to improve blood sugar control.

      With that being said, 128 ounces may be a bit excessive, but it depends on your size. (Larger people need more water.) Activity level would also increase your hydration needs. Your doctor would be able to provide more specific recommendations, and may be able to order lab work to determine if you’re over hydrating.

      Reply
  3. eve bower

    12/12/2017 at 5:16 pm

    One of the best articles I’ve read, TY! Along the lines of drinks beside water is Kool-aid ok do you think? Probably could be linked to answer about Crystal lite huh?

    Reply
    • Jedha

      12/16/2017 at 2:57 pm

      Yes Eve, you’re exactly right. We wouldn’t encourage it because it contains artificial sweeteners; some research suggests that consuming artificial sweeteners is linked to negative health consequences so we prefer the stevia-sweetened beverages.

      Reply
  4. Tony

    12/05/2016 at 1:52 pm

    Hi Jedha,

    I love sparkling Seltzer Waters. I’ve read some holistic post that they are not good for our teeth. Any thoughts on the subject? Thanks!

    Reply
    • Jedha

      12/05/2016 at 6:12 pm

      There is some evidence that shows carbonated drinks do effect tooth enamel, though not entirely sure if it’s all types and how much of an impact they really have. I’d have to look into it more to get details.

      Reply
  5. Muzette Delos Santos

    08/25/2016 at 4:04 am

    HI jedah, I’m from hawaii, where we have alot of rich foods that we eat…my a1c is 14….wow! Scary is right….doc is putting me on a drug called Korylm I think that is how to spell it…anyway I also was dignose with cushings syndrome. Do u know much about that?

    Reply
    • Jedha

      08/27/2016 at 6:11 pm

      Hi Muzette, I don’t know a great deal except that it causes high levels of cortisol, which produces the disease. Since cortisol is a hormone, it is directly related to insulin and can influence blood sugar. Did your doctor say the two could be related? Have you been referred to a specialist or given advice on what to do?

      If you have questions, please ask your doctor about them. They are the best ones to guide you on what to do.

      Reply
  6. Charlie

    04/04/2016 at 6:20 pm

    Hi Jedha Any input on magnesium spray or oil absorbed thru skin. Suppose to be very good for diabetics.

    Reply
    • Jedha

      04/05/2016 at 4:47 am

      Hi Charlie, yes magnesium spray is very good. Many diabetics get muscle cramps and it helps a great deal with that. Not to mention, that many diabetics are magnesium deficient and could use a general boost too. There’s a good article on magnesium over here.

      Reply
  7. Nabina

    02/28/2016 at 8:09 am

    Good tips

    Reply
    • Jedha

      02/28/2016 at 3:38 pm

      Glad you found them helpful Nabina.

      Reply
  8. Jay

    02/19/2016 at 3:52 pm

    Hello. A year ago my A1c was at 6.5 with glucose 110 fasting, this year A1c was 6.8 glucose of 139 fasting. I did make changes in the year, such as limiting sweets, completely stopped sodas etc. I admit from Thanksgiving up to end of January my sweet intake was alot. What can i do to reduce my a1c and glucose? I have been increasing my daily water intake. Any other suggestions?

    Reply
    • Jedha

      02/20/2016 at 2:53 am

      Hi Jay, If you take those past 3 months into consideration then you likely have the answer as to why your results are currently higher than they were. You probably just need to get back on track, limit sweets, reduce carbs, eat whole natural foods, not processed foods, drink water and exercise. Give it time and it will come down again!

      Reply
      • Sharon McDonald

        02/27/2016 at 2:56 pm

        My morning blood sugar reading are climbing up. I’ve tried cinnamon and Garmin to record my steps in walking. My MD gave me 90 days to see if I could get my blood sugar reading down. My MD says I have Dawn Phenomenon.

        I started drinking more water last week and so far I haven’t notice a decrease in my a.m. blood test. I get my HGBA1C tested on Tuesday and I’m afraid that they are going to add a new medication . I currently take 1000 mg a.m. @ breakfast and 1000 mg at supper.

        Reply
        • Jedha

          02/28/2016 at 3:37 pm

          Take a read of these Sharon, you might find them helpful https://diabetesmealplans.com/7212/how-to-lower-morning-blood-sugar/
          ttps://diabetesmealplans.com/326/why-is-blood-sugar-high-in-the-morning/

          Also, are you recording what you eat in a food diary? That will likely help reveal a few things.

          Reply
  9. Lisa

    02/02/2016 at 2:35 pm

    Thank you for your article. I have a multitude of problems of which I just found out. Well I knew and kept telling my doctors something just isn’t right….on and on.. Anyway I am desperately trying to learn this “new language” and fast I am scared for my life to say the least, I certainly don’t want to die a horribly painful death. uuugh. So I am so lost…I have been reading everyday since last Monday trying to figure out what to do. What I’ve really learned is how gross are the things we put in our bodies, its a CRIME.

    Reply
    • Jedha

      02/02/2016 at 4:42 pm

      Very true Lisa. One of my favorite quotes is from a researcher named Barry Groves “Man is the only animal smart enough to make it’s own food and the only one dumb enough to eat it”

      It’s a good one right?!

      Just leave questions on the blog if you have them, we always answer 🙂

      Reply
    • Casey

      08/19/2017 at 11:37 am

      I’m wondering is Crystal light good to put in water to make the water tast better?

      Reply
      • Jedha

        08/19/2017 at 7:29 pm

        The one we generally prefer is Stur, or ones similar to it as they don’t contain artificial sweeteners like Crystal Light does. Always read the ingredients label.

        Reply

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