The saltwater flush is a method for cleansing the colon and stimulating a bowel movement that is gaining popularity. It is said to support digestive health and help your body get rid of waste quickly. Some also believe that it helps to ease constipation and bloating, and even jumpstarts weight loss.
However, there is little research supporting this cleanse, and it can be dangerous if done too often, improperly, or for certain people, so it’s important to carefully adhere to the steps involved in the process.
What’s Involved in a Saltwater Flush
A saltwater flush is a cleanse involving drinking a mixture of warm water combined with natural salt or non-iodized salt, on an empty stomach first thing in the morning.
The higher concentration of salt encourages a process referred to as osmotic movement. This is where your body draws water into your intestines, triggering bowel movements and eliminating waste.
In essence, the saltwater mixture is supposed to move through your stomach and intestine, avoiding absorption into the bloodstream. As the solution travels through, it aims to help rid your colon of waste, functioning similarly to a natural laxative.
Note that there is little research supporting the effectiveness of a saltwater cleanse. In fact, many doctors do not recommend it, and overuse can have serious side effects.
Health Professionals’ View of the Effectiveness of A Saltwater Cleanse
The saltwater flush is not a cleanse that most doctors and registered dietitians will readily recommend. In fact, they usually exercise caution in recommending this cleanse.
This cleanse involves taking twice the recommended daily allowance of salt in a few moments, which can have dangerous side effects if done more than once a month.
Some health professionals claim that the saltwater flush can be beneficial in triggering bowel movement and relieving occasional constipation. However, it should not be used as a replacement for addressing chronic digestive issues. Furthermore, the overuse of this cleanse may cause dehydration and electrolyte imbalance.
In addition, repeated or excessive laxative use—including saltwater cleanses—can disrupt your body’s natural ability to control bowel movements.
Your healthcare provider may recommend a safer alternative, such as fiber supplements or probiotics, if you have frequent constipation. Dietary interventions of food supplements like prebiotics or probiotics can reduce bloating by reducing gas production [3].
Compared to other cleanses, like juice cleanse and fiber cleanse, the saltwater flush works quicker, but it is more intense. On the other hand, fiber-based or juice cleanses tend to be gentler and safer for regular maintenance of your digestive system.
Who Should Not Do a Saltwater Flush?
Some people should avoid doing this cleanse if they have:
- hypertension
- heart disease
- kidney disease
- pregnant or breastfeeding
- digestive disorders like ulcers, Crohn’s disease, or irritable bowel syndrome (IBS)
In addition, you should avoid a saltwater cleanse on a low-sodium diet. Research has long suggested that high salt intake has a significant impact on blood pressure [1].
If you have any health conditions, please talk to your doctor before attempting this flush to ensure it’s safe for you.
Can I Do a Saltwater Flush Regularly?
No. Although a saltwater flush may help ease occasional constipation, it’s not safe to use it frequently. This flush calls for consuming twice the daily recommended amount of salt in a few minutes. Consistently doing this is dangerous.
Overuse of the saltwater flush can lead to:
dehydration because of fluid loss- electrolyte imbalance
- strain on your kidneys and heart
The saltwater flush should not be done more than once a month by healthy adults.
If you feel your system is backed up and would like to cleanse more often, talk to your healthcare provider so a proper assessment can be done to determine if you have any underlying digestive problems.
How to Prepare the Saltwater Flush Step-by-Step
If you and your doctor decide to go ahead with the saltwater flush, you have no contraindicating medical conditions, and you are only using it once a month or less, this is how to do it.
For the ingredients, you will need the following:
- 4 cups of warm, filtered water
- 2 teaspoons of natural salt, ideally Himalayan pink salt or sea salt (unprocessed and doesn’t contain iodine, which can irritate your stomach)
- A bottle, a glass jar, or a tight-lidded shaker
Instructions for Step-By-Step Saltwater Flush Mixture
- Step 1: Warm your filtered water. When you heat it, bring it to about body temperature, warm but not hot.
- Step 2: Add the salt to the warm water. Ensure that the teaspoon measurement is level. Be very careful not to add too much salt, as the solution should mimic your body’s natural salt concentration. Too much salt can make the solution ineffective.
- Step 3: Mix the salt and warm water thoroughly. Stir or shake well until the salt is entirely dissolved.
- Step 4. Drink the mixture quickly, within 5–10 minutes.
- Step 5: Lie on your right side for 5–10 minutes. This will allow the solution to travel through your intestines.
Within 30-60 minutes, the urge to have a bowel movement should kick in. Still, some people could wait up to two hours before having a bowel movement.
When to Do a Saltwater Flush
The ideal time of day to do a saltwater flush is first thing in the morning, before you eat or drink anything. When you drink the solution on an empty stomach, it moves quickly through the digestive tract.
It’s best to do it on a day off, since a bowel movement may occur within about 30 minutes or take a few hours for it to move through your system. It’s best to stay near a bathroom for several hours.
If you don’t have results two hours after drinking the solution, drink some plain water and do a bit of gentle walking to trigger a bowel movement. DO NOT take a second dose of the solution in a single day.
Saltwater Flush Side Effects
The saltwater flush works by pulling fluid into your intestines. As such, some temporary side effects may occur, and this is normal. Some side effects that you may experience include:
- Bloating
- Stomach cramping
- Nausea
- Vomitting
- Dizziness or lightheadedness
- Frequent watery stools
- Mild dehydration
Rehydrating your body may help to provide relief from these symptoms. As such, prevent dehydration by drinking lots of water after the flush is complete.
Saltwater Flush Good for Constipation or Bloating?
A saltwater flush may help with constipation or bloating. It may relieve constipation and bloating temporarily by helping your body eliminate stool and trapped gas.
However, it does not address the root cause of your bloating or constipation issues. This is essential to get rid of these symptoms long-term.
Long-term digestive health requires a focus on lifestyle changes, from diet and hydration to exercise [2]. Long-term solutions should involve:
- Eating foods high in fiber, like fruits, whole grains, and vegetables.
- Staying hydrated by drinking plenty of fluids.
- Exercising regularly, even if it’s gentle exercise.
Can Saltwater Flush Be Considered a Detox?
A saltwater flush is not really a detox. It can help to give your colon a cleanse, but it doesn’t go as far as to detox the organs in your body or eliminate chemical toxins.
Bloating and constipation are symptoms of Detoxification circuit dysfunction, and organs like your liver and kidneys are responsible for filtering toxins naturally and flushing your system.
Emptying your intestines during a saltwater flush can feel relieving, but toxins are not removed from your body.
Eating or Drinking After a Saltwater Flush
Following the completion of a saltwater flush, wait for an hour before you eat. More importantly, start with foods that are gentle on your stomach, like:
- fruits and vegetables
- smoothies
- light soups
- steamed vegetables
- cooked oatmeal
- herbal teas
Immediately after the flush, avoid coffee, alcohol, energy drinks, processed foods, spicy foods, and greasy meals. Your digestive system needs time to rebalance, and avoiding these foods will keep stomach irritation at bay.
Can A Saltwater Flush Support Weight Loss?
After a saltwater flush, you may experience a temporary decrease in weight; however, this mostly results from water and waste loss, not fat loss. As soon as your body is rehydrated and you begin eating as normal again, your weight will likely get back to its normal level.
This cleanse is not a true weight-loss strategy, even if it allows you to have less bloating and causes your stomach to get flatter for a couple of days. When it comes to sustainable weight loss, you must be consistent in eating healthy and participating in physical activity. Quick cleanses cannot achieve that.
The Takeaway
A saltwater flush may provide you with short-term relief if suffering from constipation or bloating. However, it does not come close to being a long-term strategy for digestive issues, a detox, or a weight-loss solution.
The best way to support your digestive system, kidneys, and liver is to drink plenty of water for hydration, eat whole foods, and keep your lifestyle balanced. If you do choose to use a saltwater flush, it’s important to only do it occasionally and carefully.
Talk to your healthcare provider if you are constipated and would like to try a cleanse. Also, if you have been struggling with constipation, feel free to reach out to us at Lam Clinic, where we believe in Rooted Care that transforms lives and empowers futures.
Our team at Lam Clinic is here to walk with you on your journey, offering compassionate, integrative care that helps you restore what’s been lost and build what’s next. We aim to help you identify the root causes of any digestive issues you are experiencing and build a plan for lasting relief. Schedule your consultation today and take the first step toward lasting wellness.
