📌 Schedule An Appointment with Dr. Ona: https://www.drmelona.com

Two people can get the exact same colonoscopy. One spends the evening cramping and bloated on the couch, the other feels normal enough to go back to work by lunch. The difference almost never comes down to luck. It comes down to three decisions your gastroenterologist makes before you even walk in the door, decisions most patients never think to ask about.

In this episode, I'm going to break down the three questions you should ask before your colonoscopy so you get an easier procedure and a faster recovery.

⏱️ TIMESTAMPS
0:00 Gastroenterologist Reveals 3 Ways to Make a Colonoscopy Much Easier
0:47 Meet the doctor who scoped himself awake
1:19 Ask 1, room air vs CO2 insufflation
2:53 Ask 2, water immersion instead of air
3:48 Ask 3, choosing your sedation level
5:44 What it actually feels like awake
6:32 What happens if the facility says no
7:44 Watch this next if you have gut symptoms

❓ QUESTIONS ANSWERED

Q: Does CO2 or room air matter for colonoscopy recovery?
A: Yes. CO2 is absorbed quickly through the colon wall and breathed out through your lungs within minutes, while room air lingers in your gut and can cause hours of cramping, bloating, and gas pain afterward. Asking your facility which gas they use before your procedure can make a real difference in how you feel that evening.

Q: What is water immersion during a colonoscopy?
A: It is a technique that uses warm water instead of air to help gently guide the scope through the colon, which reduces the stretching that normally causes cramping. Studies show it can also improve visibility for the doctor and shorten recovery time for the patient.

Q: Do I have to be sedated for a colonoscopy?
A: No. Options range from deep sedation with propofol to minimal sedation to no sedation at all, and the right choice depends on your medical history, pain tolerance, and personal comfort. Some patients even prefer little or no sedation because it allows them to drive themselves home afterward.

🎥 Watch Next:
https://youtu.be/C4vZJ67Uhy4
Digestive Symptoms You Should Never Ignore (See a Doctor Immediately)

📱 RESOURCES
Website: https://www.drmelona.com
Patient Portal: https://drmelona.com/patient-portal/
Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/polymathforever/
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

💬 Have you had a colonoscopy before? Tell me in the comments what surprised you most, or what question you wish you had asked beforehand.

ABOUT DR. MEL ONA: I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #ColonoscopyScreening #DigestiveHealth #ColonCancerPrevention

📌 Schedule An Appointment with Dr. Ona: https://www.drmelona.com

IBS is a diagnosis of exclusion. But what actually gets excluded varies wildly from one workup to the next, and the conditions most often missed are the ones with real, specific treatments. If you have carried an IBS label for years with no real improvement, this is worth twenty minutes.

In this episode, I'm going to show you what a complete IBS workup actually looks like, the conditions most commonly missed under that label, and the exact questions to bring to your next appointment before you accept IBS as your final answer.

⏱️ TIMESTAMPS
0:00 Before You Accept an IBS Diagnosis, Watch This
0:35 What Rome IV criteria actually require
1:19 Why workups vary so much between doctors
2:07 SIBO, the most commonly missed cause
2:52 Microscopic colitis and why colonoscopies miss it
3:22 Inflammatory bowel disease hiding behind IBS
4:12 Thyroid problems that mimic IBS
5:32 Pelvic floor dysfunction and constipation
5:53 The exact questions to ask your doctor
7:06 How to frame the conversation with your GI doctor

❓ QUESTIONS ANSWERED

What tests are missed most often in an IBS diagnosis?
The two most commonly skipped tests are a hydrogen or lactulose breath test for SIBO and colon biopsies during colonoscopy that could reveal microscopic colitis. Both conditions look identical to IBS on symptoms alone but require specific testing to find.

Can you have a normal colonoscopy and still not have IBS ruled out?
Yes. A colonoscopy without biopsies cannot detect microscopic colitis, which causes chronic watery diarrhea despite a completely normal looking colon. Biopsies are required to make that diagnosis.

Does thyroid function affect IBS symptoms?
Yes. An underactive thyroid slows digestion and causes constipation and bloating, while an overactive thyroid speeds it up and causes loose, urgent stools. A basic TSH panel rules this out quickly but is not always part of a standard gut workup.

📱 RESOURCES
Website: https://www.drmelona.com
Patient Portal: https://drmelona.com/patient-portal/
Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/polymathforever/
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA: I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GIDoctor #NutritionScience

📌 Schedule An Appointment with Dr. Ona: https://www.drmelona.com

Most patients on a proton pump inhibitor have no idea it was only meant to be used for 8 to 12 weeks. Some have been on it for a decade. Nobody ever sat down to ask if they still need it. Millions of people fill this prescription every single month without a second thought, and most of them were never told there was an end date in the first place.

In this episode, I'm going to explain what stomach acid actually does for your gut, what happens when it gets suppressed for years, and how to have the conversation about stopping safely.

⏱️ TIMESTAMPS
0:00 The Gut Medication Most Patients Stay On Too Long
0:42 What PPIs are and how they work
1:09 Why the stopping conversation never happens
2:03 The refill cycle that keeps patients on PPIs
3:34 What stomach acid actually protects against
5:35 How PPIs increase SIBO and infection risk
6:42 The nutrient deficiencies nobody warns you about
9:00 When long term PPI use is actually appropriate
9:41 How to safely taper off a PPI

❓ QUESTIONS ANSWERED

How long should you take a proton pump inhibitor?
Most PPIs are designed for short term use, typically 8 to 12 weeks, unless you have a documented condition like erosive esophagitis or Barrett's esophagus that requires ongoing acid suppression. Anyone taking one longer than that without a clear diagnosis should bring it up at their next appointment.

What happens if you stop a PPI suddenly?
Stopping abruptly can trigger rebound acid hypersecretion, a temporary surge in stomach acid that feels worse than the original problem and usually resolves within 4 to 8 weeks. This rebound effect is the main reason patients feel like they cannot quit, even when the medication is no longer needed.

Can long term PPI use cause nutrient deficiencies?
Yes. Long term use is linked to lower magnesium, vitamin B12, and calcium absorption, along with an increased risk of bone fracture and small intestinal bacterial overgrowth. These effects tend to build slowly over years, which is why they often go unnoticed until symptoms show up elsewhere.

📱 RESOURCES
Website: https://www.drmelona.com
Patient Portal: https://drmelona.com/patient-portal/
Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/polymathforever/
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GutMicrobiome #GIDoctor

📌 Schedule An Appointment with Dr. Ona: https://www.drmelona.com

The patients I see at 60 with diverticulitis, colon polyps, and chronic constipation all have one thing in common. Nobody told them what was happening in their gut at 40. By the time they reach my office, the window to prevent it has often closed. Most of them ate what they thought was a healthy diet. They just never knew the one habit that actually protects the microbiome long term.

In this episode, I'm going to break down the one dietary habit backed by the American Gut Project that does more for long term gut health than any supplement, and show you exactly how to build it starting today.

⏱️ TIMESTAMPS
0:00 This Daily Habit at 40 Prevents Serious Gut Issues at 60
0:47 Meet the habit that beats supplements
1:09 What happens to your microbiome after 40
2:14 Why fiber grams alone miss the point
3:36 How many plant foods do you actually eat
4:14 The 30 plant foods per week target
5:04 How to track it without overhauling your diet
6:48 What to expect in the first two weeks
7:36 The prevention data on colon disease
8:12 Modifying the plan for SIBO or IBD

❓ QUESTIONS ANSWERED

What is the best daily habit for gut health after 40?
Eating a wide variety of plant foods, aiming for 30 different plants per week, is the habit most strongly linked to a diverse, resilient gut microbiome. This matters more than hitting a fiber gram target or taking supplements, and it becomes especially important as microbial diversity naturally starts to decline in your forties.

Does fiber variety matter more than total fiber intake?
Yes. Different fibers feed different bacterial species, so eating the same few fiber sources every week limits your microbiome even if your total fiber intake looks healthy. Variety, not just quantity, drives microbial diversity, which is why two people eating the same amount of fiber can have very different gut health outcomes.

Can eating more plant foods prevent diverticulitis or colon cancer?
Higher fiber variety is associated with lower risk of colorectal cancer and diverticulitis across large studies. The mechanism runs through short chain fatty acids like butyrate, which fuel colon cells and reduce inflammation, giving your gut lining a measurable layer of protection over decades.

📱 RESOURCES
Website: https://www.drmelona.com
Patient Portal: https://drmelona.com/patient-portal/
Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/polymathforever/
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GutMicrobiome #FiberForGutHealth

📌 Schedule An Appointment with Dr. Ona: https://www.drmelona.com

Intermittent fasting or breakfast. You've probably heard both are the right answer, sometimes from the same source in different years. If you have gut symptoms like bloating, reflux, or irregular bowel habits, you've likely tried both approaches and still don't have a clear answer for your own body. The truth is that most advice online ignores one critical factor entirely.

In this episode, I'm going to break down the real science behind intermittent fasting and breakfast, and explain why your gut status is the variable that changes which one is right for you.

⏱️ TIMESTAMPS
0:00 What a GI Doctor with a Nutrition Degree Actually Does for Breakfast
0:45 The real case for intermittent fasting
1:38 How fasting affects gut bacteria and motility
2:33 What cortisol does to your gut every morning
4:08 Why gut patients react differently to fasting
5:20 When intermittent fasting actually helps your gut
7:04 What 10,000 patients taught me about meal timing
8:03 The modified fasting window I recommend
9:07 How to test this on yourself in two weeks

❓ QUESTIONS ANSWERED

Is intermittent fasting bad for gut health?
Not inherently, but for people with leaky gut, SIBO, or IBD, extended morning fasting raises cortisol and slows gut healing more than it helps. For otherwise healthy guts, fasting can support the migrating motor complex and improve motility between meals.

Should I eat breakfast if I have digestive issues?
Yes. Eating within an hour of waking buffers the morning cortisol spike and helps shift your gut from repair mode into active digestion, which tends to reduce morning bloating and reflux for people with sensitive digestive systems.

What is the best eating window for gut health?
A 12 to 13 hour overnight fast, roughly 7pm to 7am, captures most fasting benefits without pushing calories into the evening when digestion slows. This modified window tends to work well for both healthy guts and those managing conditions like SIBO or IBD.

📱 RESOURCES
Website: www.drmelona.com
Books By Dr Mel Ona: https://drmelona.com/media/
Patient Resources: https://drmelona.com/patient-portal/ Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/drmelonagi
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #NutritionScience #GIDoctor

📌 Visit https://www.drmelona.com

If you've been eating clean for months and your gut still hasn't changed, you are not missing a food. You are missing the actual root cause. No amount of restriction can fix a problem that diet was never causing in the first place. This is one of the most common frustrations I hear from patients, and it usually points to something deeper than what is on their plate.

In this episode, I'm going to explain the three real conditions that mimic a food problem, why clean eating can sometimes make symptoms worse, and what questions to actually bring to your doctor.

⏱️ TIMESTAMPS
0:00 How Eating Clean Can Make Your Gut WORSE
0:57 The logic behind why clean eating seems to help
1:48 What diet can and can't actually change
2:59 SIBO: the hidden cause behind bloating
4:23 Why healthy foods can feed bacterial overgrowth
5:14 The hydrogen breath test doctors often skip
5:27 When your immune system is the real problem
7:16 How common medications damage your gut lining
9:00 Three questions to ask your doctor

❓ QUESTIONS ANSWERED

Can eating clean make gut symptoms worse?
Yes. If you have small intestinal bacterial overgrowth, healthy foods high in fermentable carbohydrates like garlic, onions, apples, and legumes can feed the overgrown bacteria and worsen bloating and fatigue. This is why some patients feel worse the healthier they try to eat.

What tests should I ask for if diet changes aren't working?
Ask about a hydrogen breath test for SIBO, a fecal calprotectin stool test for inflammatory bowel disease, and a review of daily medications like PPIs or NSAIDs that can damage the gut lining or bacterial balance. These three steps cover the most common hidden causes doctors see.

Why doesn't clean eating fix conditions like SIBO or IBD?
These conditions are driven by bacteria in the wrong location or an immune system attacking the gut lining, not by food quality, so diet can support healing but cannot resolve the underlying cause. That is why some patients need medical treatment alongside any dietary changes.

📱 RESOURCES
Website: https://www.drmelona.com
Books By Dr Mel Ona: https://drmelona.com/media/
Patient Resources: https://drmelona.com/patient-portal/
Unsedated Colonoscopy Video: https://www.youtube.com/watch?v=-Vz1IXF0rmo
Instagram: https://www.instagram.com/drmelonagi"
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GutMicrobiome #GIDoctor

📌 Visit www.drmelona.com

Most people fixing their gut ignore one huge factor. It is not diet. It is not supplements. It is sleep, and poor sleep can undo weeks of good eating in just a few nights. Your gut lining actually repairs itself while you sleep, so if your sleep is broken, your healing plan is broken too, no matter how clean your diet is.

In this episode, I'm going to break down the five sleep mistakes that keep your gut from healing and explain exactly how sleep and gut health feed each other in a loop, so you can fix the real root cause instead of chasing symptoms.

⏱️ TIMESTAMPS
0:00 THIS Heals Your Gut Faster Than Probiotics & Fiber
0:50 How the gut sleep loop actually works
1:48 Mistake 1: treating sleep and gut as separate problems
2:58 Mistake 2: how fast poor sleep damages your gut
4:28 Mistake 3: eating too close to bedtime
5:22 Mistake 4: using melatonin without fixing the real cause
7:06 Mistake 5: thinking fast sleep onset means good sleep
8:07 Why alcohol quietly wrecks gut repair
8:54 Three things to do tonight

❓ QUESTIONS ANSWERED

Can poor sleep cause gut problems even if I eat well?
Yes. Poor sleep raises cortisol, which weakens your gut lining and slows repair, and it can shift your gut bacteria within just a few nights, undoing progress from diet changes. This is why many patients feel stuck even when their eating habits look perfect on paper.

Does melatonin help fix gut related sleep problems?
Melatonin can help a little, but if gut inflammation is lowering your serotonin production, melatonin only treats the end result, not the root cause. Treating gut inflammation often raises serotonin and melatonin naturally, which improves sleep more effectively and creates a lasting fix instead of a temporary patch.

Why do I still feel tired even when I fall asleep fast?
Falling asleep quickly does not mean you are getting enough deep or REM sleep, which is when your gut lining repairs. Waking up groggy or feeling unrestored are signs your sleep depth, not just your sleep duration, needs attention, and that depth is often what gut healing actually depends on.

📱 RESOURCES
Website: www.drmelona.com
Books By Dr Mel Ona: https://drmelona.com/media/
Patient Resources: https://drmelona.com/patient-portal/
Instagram: https://www.instagram.com/drmelonagi

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board-certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GutMicrobiome #GIDoctor

🎁 Visit www.drmelona.com

If you've gone gluten free and you're still bloated, going stricter won't fix it. For most people without celiac disease, gluten isn't actually the problem. There is a different, more likely trigger hiding in plain sight.

In this episode, I'm going to explain why gluten gets blamed for gut symptoms it isn't causing, and walk you through the real diagnostic steps to find what's actually triggering your bloating.

⏱️ TIMESTAMPS
0:00 The #1 Gluten Myth Keeping Your Gut Sick
0:19 My credentials as a gastroenterologist
1:02 What celiac disease actually is
1:47 How the gluten free myth spread beyond celiac
2:06 The real culprit hiding in wheat: fructans
3:00 What a double blind study revealed about gluten sensitivity
3:34 When bacterial overgrowth (SIBO) is the real cause
4:26 Step one: get tested for celiac disease correctly
5:03 Step two: try a real low FODMAP evaluation
5:26 Step three: ask for the hydrogen breath test

❓ QUESTIONS ANSWERED

Does going gluten free help if I don't have celiac disease?
For most people without celiac disease, gluten itself is not the trigger, and studies show pure gluten does not cause symptoms in these cases. The bloating often comes from fructans, a fermentable carbohydrate found in wheat.

What is the difference between a gluten problem and a FODMAP problem?
Gluten triggers an immune reaction only in people with celiac disease, while FODMAPs like fructans, garlic, onion, and beans cause gas and bloating through fermentation in anyone with a sensitive gut. If symptoms return when you eat garlic or beans, the issue is likely FODMAPs, not gluten.

What test checks for bacterial overgrowth in the gut?
A hydrogen breath test checks for small intestinal bacterial overgrowth, known as SIBO. You drink a sugar solution and breathe into a tube over about two hours to measure whether bacteria are fermenting food too early in your digestive tract.

📱 RESOURCES
Website: www.drmelona.com
Books By Dr Mel Ona: https://drmelona.com/media/
Patient Resources: https://drmelona.com/patient-portal/
Instagram: https://www.instagram.com/drmelonagi"
Facebook: https://www.facebook.com/doctormelona

🔔 Subscribe for evidence-based digestive health, nutrition science, and disease prevention from a board-certified gastroenterologist.

ABOUT DR. MEL ONA:
I'm Dr. Mel Ona, a board certified gastroenterologist with graduate training in nutritional biochemistry and metabolism. I founded Ohana Gastroenterology and have treated over 10,000 patients across nine years of clinical practice. My focus is evidence-based digestive health, nutrition science, and disease prevention.

#GutHealth #Gastroenterologist #DigestiveHealth #GutMicrobiome #NutritionScience