How Much Water Should I Drink on Keto? (2024)

The keto diet, or ketogenic diet, has skyrocketed in popularity since the 90’s. It focuses on a high-fat, low-carb diet, which results in a state known as ketosis. Despite its recent trendiness, there is what seems to be endless research supporting the efficacy of this diet -making it an almost sure-fire way among many to lose some weight.

The keto diet’s goal is maintaining a state of ketosis to shed some pounds. But to get the most out of keto, you must also remain cognizant of your body’s other needs. Proper hydration should be a key concern for everyone, and for those chasing or maintaining ketosis, hydration levels also play an integral part in diet success. Additionally, getting the recommended amount of liquids will help stave off symptoms synonymous with the dreaded keto flu.

Because low-carb diets typically retain less water, it’s essential to know how much fluid intake is necessary. Keep reading to learn how ketogenesis ties into dehydration, and how much fluid intake is necessary while on the keto diet.

Why Keto Dieters are Prone to Dehydration

Even though it sounds catchy, water weight isn’t a desirable feature to catch in the mirror. The keto diet helps dieters target that weight, but in the process, it can also deprive the body of its natural ability to resist dehydration.

Less Salt Intake

One key way the ketogenic diet helps practitioners with weight loss is its removal of sodium from user’s everyday eating habits. Salt helps the body retain its water intake, maintain electrolyte levels, and avoid cases of mild dehydration in situations where liquids aren’t readily available.

More Activity

Diet and exercise work in tandem to produce healthy weight loss. However, a keto dieter’s ability to retain water is purposefully diminished. This can lead to severe dehydration for active individuals on keto, or people frequently exposed to warm conditions.

Not Enough Electrolytes

Not all natural sources of electrolytes are keto-friendly, so deficiencies can occur. A lack of electrolytes can mean your body isn’t getting the most out of the water you’re putting into it.

Signs and Effects of Dehydration

What happens if you don’t drink enough water on keto? Dehydration can begin a vicious cycle of symptoms that cause and magnify each other. Throughout a long day of work, errands, or parenting, it’s not always first nature to focus and listen to what your body’s trying to say. Learning the warning signs on display when you’re heading towards mild dehydration can help you recognize a problem and avoid escalation.

Muscle Cramps

Weakness in the muscles, muscle cramps, and a rapid heartbeat are sure signs of dehydration. These issues may not be immediately apparent, but they can put a strain on the body and cause fatigue, nausea, irritability, and lethargy.

Loss of Consciousness

That lethargy can lead to haziness, dizziness, and fainting. This stems from the sudden drop in blood pressure that dehydration can initiate. Normal blood circulation requires normal hydration levels, and a lack of water can deprive the brain of blood and force the heart to work harder. If you’re feeling dizzy after standing or you’re experiencing tunnel vision, it’s time for a glass of water with electrolyte powder.

Dark Urine

Your urine should be clear or a pale yellow. Dark urine or long periods between urination can indicate dehydration.

The Importance of Staying Hydrated While on the Keto Diet

The keto diet’s methodology can put dieters in danger of dehydration, but there are a number of diet-based incentives to getting the right amount of water per day.

Metabolism

Keto diets help people lose weight by turning fat and fatty acids into ketones, which are then used as an energy source. For the human body to turn fat into ketones, it needs plenty of water, as this process doesn’t just occur in the digestive tract—the body’s stores of fat are also converted to ketones, providing an extra energy boost between meals. Water is an essential tool for getting the most out of your keto diet.

Keeping Cravings in Check

As dehydration begins to take hold, some of the side effects that come along with it are the same signs you may see if you’re suffering from hunger. Weakness, dizziness, and fatigue are telltale signs of both, but before succumbing to a snack attack in the face of any of those ailments, think about your daily water intake. If you think you’ve fallen behind, reach for your water bottle instead.

Being Prepared for Physical Activity

If exercising is part of your weight loss plan, the danger posed by dehydration should already be on your mind. If you’re exercising while in ketosis, that danger increases due to the lack of stored water in the body. If you’re already anticipating planned activity, also plan to properly hydrate both before and after working out. Bonus points if you’re making sure your body is receiving its fair share of electrolytes. For someone maintaining ketosis, this may require the use of a product.

How Much Water Should You Drink on Keto?

Rule of thumb states a person should divide their body weight in half and drink that many ounces of water daily. For example, if someone weighs 160 pounds, they’ll need to take in 80 ounces of water a day. That amount could be more for someone on keto, since the diet alters your body’s water and electrolyte levels.

For a more accurate take, the National Library of Medicine states that adults should drink 2.7 to 3.7 liters of water over the course of one day. However, the organization also stresses there’s not a universally applicable recommendation for daily water consumption. It says a variety of factors can influence your specific needs, including age, weight, activity level, and diet.

How To Stay Hydrated While on the Keto Diet

Luckily, a variety of options can be utilized to remain properly hydrated while maintaining ketosis.

Drink When You’re Thirsty

How do you rehydrate on keto? The easy answer is to drink enough water. Your body will do a good job of telling you when it’s thirsty, so pay attention and always keep water handy. If you’re not a fan of water, try adding natural citrus juice for flavor.

Stay Away From Dry Foods

This can be difficult since keto already influences your everyday diet, but foods rich in water like bone broth, avocado, and most vegetables are also low in carbohydrates.

Supplement Your Electrolyte Intake With DripDrop

Electrolytes allow your body to take advantage of the water you’re putting into it, and equipping yourself with more electrolytes means you’ll be better prepared to enjoy the full benefits of proper hydration. DripDrop is a great option for supplementing your body’s electrolyte count. One packet includes three times the electrolyte count of the average sports drink with half the sugar. Additionally, for those looking for dehydration relief without the sugar, DripDrop offers DripDrop Zero, a zero sugar option.

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The keto diet has built-in causes that can lead to the undesirable effect of dehydration. Managing them and maintaining ketosis can be tricky, but with self-monitoring, proper water intake, and supplemented electrolyte levels, keto dieters can turn water into an integral part of their weight loss routine.

DripDrop's multi-flavor pouches can be a quick, easy, and diet-friendly part of that routine. Subscribe to DropDrop and save 25%.

How Much Water Should I Drink on Keto? (2024)

FAQs

How Much Water Should I Drink on Keto? ›

How Much Water Should You Drink on Keto? Rule of thumb states a person should divide their body weight in half and drink that many ounces of water daily. For example, if someone weighs 160 pounds, they'll need to take in 80 ounces of water a day.

How much water should I drink while on keto? ›

Preventing Dehydration on Keto

That's when the Food and Nutrition Board of the National Academy of Sciences recommended that adults drink 84 ounces of water per day. [*] This recommendation has since mutated into the 8x8 rule, which commands us to drink eight ounces of water eight times per day regardless of thirst.

Can drinking too much water affect ketone strips? ›

Some days you may eat a few more or less carbohydrates and still stay in ketosis yet get a different degree of color. If you drink a large amount of water or other calorie-free liquids within a short time of checking your ketone strip, you may see a lighter color due to the temporary dilution of your urine.

Does water flush out ketones? ›

If your test shows a trace amount of ketones, it may mean your levels are starting to build. What you can do to bring down your ketone levels: Drink extra water to flush them out of your body. Test your blood sugar every 3 to 4 hours.

How do you know if you are dehydrated on keto? ›

Signs of Dehydration on Keto
  • Excessive thirst.
  • Dry mouth.
  • Muscle cramps or spasms.
  • Dry eyes.
  • Headaches.
  • Fatigue.
  • Feeling confused or having brain fog.
  • Constipation.
Jan 17, 2022

Can too much water stop ketosis? ›

But while Keto does increase hydration needs, drinking more water isn't necessarily the answer. In fact, drinking too much sodium-free water on Keto can exacerbate Keto flu. Why? Because over-hydrating dilutes blood sodium levels, bringing with it—yes—the dreaded symptoms of Keto flu.

Does coffee count as water on keto? ›

There are a variety of drinks that get the green light on a keto diet. These include water, unsweetened coffee and tea, unsweetened plant-based milks, and low-carb protein shakes.

What color is your urine in ketosis? ›

Darker colors indicate higher levels of ketones. You can also do a blood test for ketones, similarly to how a blood glucose monitor works.

Are ketones hard on kidneys? ›

Ketones support kidney energy metabolism and are renoprotective. Exogenous ketones protect from acute kidney injury and chronic kidney disease.

What foods can I eat unlimited on keto? ›

Foods you can eat on the keto diet include fish and seafood, meat and poultry, non-starchy vegetables like bell peppers, broccoli, and zucchini, avocados, berries, nuts and seeds, eggs, high-fat dairy products, olive oil and other oils, and high-cocoa chocolate.

What is the ideal ketosis level for weight loss? ›

The optimal blood ketone range is 0.5 to 3.0 mg/dL. Maintaining this ketone level will help your body use stored fat in the most effective way possible without causing harm. It will help you become a lean, mean fat-reducing machine.

Can I eat as much as I want on keto? ›

Most people feel more satisfied after eating ketogenic meals and snacks due to the filling effects of fat and protein. However, it's entirely possible to consume too many calories on a ketogenic diet by eating portions that are too large or by snacking on high-calorie foods throughout the day.

How to speed up keto weight loss? ›

The following tips will help.
  1. #1: Track Carbs. The #1 rule of Keto is to restrict carbs. ...
  2. #2: Track Calories. Speaking of tracking macros, you'll also want to track calories to ensure sustainable weight loss. ...
  3. #3: Track Ketones. ...
  4. #4: Prioritize Sleep. ...
  5. #5: Manage Stress. ...
  6. #6: Get Enough Protein. ...
  7. #7: Intermittent fasting.

What happens if you eat no carbs for a week? ›

Severe carb limits can cause your body to break down fat into ketones for energy. This is called ketosis. Ketosis can cause side effects such as bad breath, headache, fatigue and weakness. It's not clear what kind of possible long-term health risks a low-carb diet may pose.

Will one slice of pizza take you out of ketosis? ›

Regular Crust

This type of pizza crust can have up to 33g of carbs without any added sauce or cheese. If you're limiting your carbs to 20-50 grams per day, one slice of this type of crust will likely kick you out of ketosis.

How many days do you lose water weight on keto? ›

1 Week. The great news is, you'll start to see the weight drop off straight away - in the first week of going Keto. Anywhere between 2-10lbs of weight loss can be expected after 1 week. This is an incredible amount, however it isn't due to losing fat, but rather water!

Does the water in coffee count as water intake? ›

Some coffees will have a higher caffeine level than others, and obviously more than tea. But the diuretic effect is fairly low in most people, similar to tea. As both tea and coffee do count as water intake, the level of caffeine contained in both drinks shouldn't have any dehydrating effects.

Why are you so thirsty on keto? ›

Ketosis may cause some people to feel thirstier than usual, which may occur as a side effect of water loss. However, high levels of ketones in the body can also lead to dehydration and an electrolyte imbalance. Both of these reactions can cause complications.

How much water should I drink to lose weight? ›

People who are obese or overweight have different water needs. They should drink more water to remain hydrated and help lose weight. Generally, you should take half of your body weight in ounces of water. Therefore, a person weighing 180 pounds should target about 90 ounces in a day.

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