Is Watermelon Juice Acidic? A Refreshing Beverage or a Trigger?
Medically reviewed by Aneeza Pervez Updated Date: May 13, 2026
Watermelon juice is a naturally sweet and hydrating drink that’s especially popular during hot weather. Its refreshing taste and high water content make it a favorite for quenching thirst. However, for those dealing with acid reflux or GERD (gastroesophageal reflux disease), the question arises: Is watermelon juice acidic, and can it trigger symptoms like heartburn?
In this article, we’ll explore whether watermelon juice is acidic or alkaline, its potential effects on acid reflux, and how you can enjoy it without discomfort. We’ll also discuss its nutritional benefits, provide tips for including it in a reflux-friendly diet, and answer frequently asked questions about this vibrant beverage.
Is Watermelon Juice Acidic or Alkaline?
1. The pH Level of Watermelon Juice
Watermelon juice is mildly acidic, with a pH level ranging between 5.2 and 5.8. While it is technically acidic, its acidity is very mild compared to other fruit juices like orange juice or lemonade.
2. Alkalizing Effect in the Body
Despite its slightly acidic pH, watermelon juice is considered an alkalizing food when digested. It helps neutralize excess stomach acid and balance pH levels in the body, making it a potentially safe choice for acid reflux sufferers.
3. Natural Hydration
Watermelon juice contains over 90% water, which dilutes its acidity and reduces the likelihood of triggering reflux symptoms. This high water content makes it a hydrating and soothing option for most people.
Author Tip: Are Watermelons Healthy?
Can Watermelon Juice Trigger Acid Reflux?
Watermelon juice is generally well-tolerated by individuals with acid reflux, but there are certain factors to consider:
1. Low Acid Content
Compared to other fruit juices, watermelon juice is far less acidic, making it a gentler option for those with sensitive stomachs.
2. High Natural Sugar
While natural sugars in watermelon juice are less harmful than added sugars, consuming it in large quantities may cause bloating or gas in some individuals, potentially leading to reflux symptoms.
3. Individual Sensitivities
Everyone’s body reacts differently to certain foods. While many find watermelon juice soothing, others may experience discomfort due to personal sensitivities.
Why Watermelon Juice May Be Good for Acid Reflux?
Watermelon juice is not just delicious—it offers several benefits for individuals managing acid reflux:
1. High Water Content
Watermelon juice is over 90% water, which helps dilute stomach acid and reduce the likelihood of acid reflux. Staying hydrated is key to maintaining healthy digestion.
2. Naturally Low in Fat
Foods and drinks high in fat can relax the lower esophageal sphincter (LES), leading to reflux. Watermelon juice is naturally fat-free, making it less likely to trigger symptoms.
3. Gentle on the Stomach
Unlike highly acidic juices such as citrus or cranberry, watermelon juice is mild and easy on the stomach, making it a suitable alternative for people with reflux.
4. Rich in Nutrients
Watermelon juice is packed with essential vitamins and antioxidants, including:
- Vitamin A: Promotes tissue repair and supports healthy digestion.
- Vitamin C: Boosts the immune system and aids in healing esophageal irritation.
- Lycopene: A powerful antioxidant that reduces inflammation in the digestive tract.
5. Cooling and Soothing
The natural cooling properties of watermelon juice make it a comforting beverage for soothing an irritated esophagus.
How to Enjoy Watermelon Juice Without Triggering Reflux?
To enjoy watermelon juice while minimizing the risk of acid reflux symptoms, follow these tips:
1. Drink in Moderation
Stick to a moderate portion, such as 1 cup (about 8 ounces). Drinking excessive amounts can lead to bloating, which may put pressure on the stomach and trigger reflux.
2. Avoid Adding Sugar
Watermelon juice is naturally sweet, so there’s no need to add sugar or sweeteners, which can increase acidity and exacerbate reflux symptoms.
3. Serve Chilled, Not Icy
While cold watermelon juice is refreshing, drinking it ice-cold may irritate the stomach. Serve it slightly chilled instead.
4. Pair with Non-Acidic Foods
Consume watermelon juice alongside a light, reflux-friendly meal to reduce the risk of symptoms. Avoid pairing it with spicy or fatty foods.
5. Avoid Drinking Before Bedtime
Refrain from drinking watermelon juice or any liquid close to bedtime, as lying down after consuming it can increase the risk of nighttime reflux.
Author Tip: 7 Kinds of Foods to Avoid with GERD
Nutritional Benefits of Watermelon Juice
Watermelon juice is not only a tasty beverage but also a nutrient-dense addition to your diet:
1. Hydration
The high water content in watermelon juice keeps you hydrated, supports digestion, and prevents dehydration-related reflux.
2. Low in Calories
With only about 45 calories per cup, watermelon juice is a low-calorie beverage perfect for maintaining a healthy weight, which is important for managing acid reflux.
3. Rich in Antioxidants
The lycopene and vitamin C in watermelon juice fight inflammation and protect against oxidative stress, promoting overall gut health.
4. Supports Heart Health
The potassium in watermelon juice helps regulate blood pressure, reducing the risk of heartburn related to hypertension.
Watermelon Juice Recipe for Acid Reflux
Try this simple, reflux-friendly watermelon juice recipe:
Ingredients
- 2 cups fresh watermelon (seedless)
- 1 cup cold water
- Optional: A few mint leaves for flavor
Instructions
- Add watermelon chunks and water to a blender.
- Blend until smooth.
- Strain the juice to remove any pulp (optional).
- Serve slightly chilled and garnish with mint leaves if desired.
This refreshing drink is naturally sweet, hydrating, and gentle on the stomach.
FAQs About Watermelon Juice and Acid Reflux
1. Is watermelon juice acidic?
Yes, watermelon juice is slightly acidic, with a pH level of 5.2 to 5.8. However, it is much milder than other fruit juices and generally well-tolerated.
2. Can watermelon juice cause acid reflux?
Watermelon juice is unlikely to cause acid reflux when consumed in moderation. However, overconsumption or individual sensitivities may trigger symptoms in some people.
3. Is watermelon juice good for acid reflux?
Yes, watermelon juice is considered reflux-friendly due to its high water content, low fat, and mild acidity.
4. Can I drink watermelon juice daily?
Yes, you can drink watermelon juice daily as part of a balanced diet. Just avoid overindulging and pay attention to how your body reacts.
5. Is store-bought watermelon juice safe for acid reflux?
Store-bought watermelon juice may contain added sugars or preservatives that can worsen reflux. Opt for freshly made juice at home for better control over ingredients.
Conclusion
Watermelon juice is a mildly acidic yet refreshing and hydrating beverage that can be enjoyed by most individuals with acid reflux. Its low fat, high water content, and nutrient-rich profile make it a suitable choice for soothing the digestive system and reducing reflux symptoms.
By consuming it in moderation, avoiding added sugars, and pairing it with reflux-friendly meals, you can enjoy watermelon juice without discomfort. Whether sipped on a hot summer day or enjoyed as a healthy alternative to other fruit juices, watermelon juice can be a delicious part of your reflux-friendly diet.
If you’re looking for more tips on managing acid reflux with food, check out our other articles for expert insights and practical advice!
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Moonshine Marshmallows
I was originally inspired by the recipe for Blue Bottle Coffee’s moonshine marshmallows, but after making it multiple times, and failing, I finally had to admit defeat. But that doesn’t mean I can’t use the name, now does it? A moonshine marshmallow certainly sounds much more intriguing than a bourbon marshmallow.
This is my first entry for a giftable holiday treat, and a winning one it is at that. These marshmallows look adorable, feel as soft as, no, wait, softer than pillows, and taste incredibly luscious.
Imagine creamy hot chocolate spiked with bourbon marshmallows… perfect for sipping in front of a wood-burning fireplace. Or for those of us who don’t have wood-burning fireplaces, our radiators. Actually, that’s the last place I want to be when it’s on; our apartment is hot enough as it is.
These also taste great in adult-flavored s’mores. (And if you use a 9-inch square baking pan instead of 8-, they cut into perfect-sized squares for the graham crackers.) To toast them, because again, there’s no wood-burning fireplace in my dinky little apartment, I pop them in the toaster oven where they do that funny expansion thing, bubbling and swelling like they’re about to come alive, and let them slowly turn buttery-brown. By then, the s’mores is a hot mess, melted chocolate and gooey marshmallow everywhere. It’s pretty much perfect.
Homemade marshmallows are pretty much perfect.
There’s no need to stick to bourbon. I imagine Bailey’s would work wonderfully. Or kahlua, or anything besides vodka (which doesn’t taste like anything except alcohol). You don’t even have to use alcohol at all—I imagine the recipe would work just as well with water—but what’s the point? Actually, scratch that. I’m not judging. I’m not the biggest fan of alcohol-tasting desserts. (But this one’s different, I swear!)
If you’re going to make substitutions with the sugar, I would advise against maple syrup. It tends to crystallize, and form razor shards. I cut myself on a piece, and it looks and feels like a paper cut. (They’re the worst!) I was initially uncomfortable with the idea of using corn syrup, but David makes a good case for it, and especially after my incident with the the maple syrup, I decided to just swallow my unease and pour it all in. The entire cupful.
MOONSHINE MARSHMALLOWS
Adapted from Epicurious
Makes 16 2×2-inch marshmallows or 64 1×1-inch marshmallows
Ingredients:
- 3 (1/4-ounce) envelopes unflavored gelatine
- 6 Tbsp bourbon, divided
- 1-1/2 cups sugar
- 1 cup light corn syrup
- 1/2 cup + 2 Tbsp water, divided
- 1/4 cup corn starch
- 1/4 cup confectioners sugar
Tools:
candy thermometer
Directions:
Line an 8-inch square baking pan with 2 sheets of parchment paper (completely covering all the edges inside the pan). Lightly oil the sides and bottom of the pan.
In a separate bowl, sift together the corn starch and confectioners sugar. Sift enough of this mixture into the prepared pan to completely and generously cover the bottom. Reserve the remaining cornstarch mixture.
Sprinkle gelatin over 3 Tbsp bourbon and 5 Tbsp water in bowl of mixer and let soften while making syrup.
Stir together sugar, corn syrup, a pinch of salt, the remaining 3 Tbsp bourbon, and the remaining 5 Tbsp water in a medium heavy saucepan (I used a 4-quart saucepan and it barely contained the liquid when it boiled up). Boil over medium heat, without stirring, until candy thermometer registers 238 to 240°F. Remove from heat.
With mixer at low speed, pour hot syrup into gelatin mixture in a slow stream down side of bowl. Increase speed to high and beat until very thick and mixture forms a thick ribbon when beater is lifted, 11 to 13 minutes.
With a lightly oiled spatula, scrape marshmallow into baking pan and smooth the top. Let stand, uncovered, at room temperature until surface is no longer sticky, 2 to 3 hours.
Remove from pan and carefully peel away the parchment paper. Dust the top and all the edges with the remaining corn starch mixture. Using a knife or scissors dusted with the corn starch mixture, cut the marshmallow into whatever shape you’d like. Dust all cut edges with the corn starch mixture to prevent sticking.
These should last for about a week or so, if kept in an airtight container at room temperature. If stacking the marshmallows, line between layers with parchment paper.
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