From social media posts to natural health blogs, the combination of baking soda and lemon juice continues to gain attention in 2025. Some claim it helps with digestion, skin care, or even “cleansing” the body. But what really happens when you mix these two kitchen staples?
Let’s take a closer look at the science behind this popular pairing, the potential benefits and risks, and what experts like those at Harvard Health and the Mayo Clinic suggest.
If you’ve ever sipped lemon water with a pinch of baking soda or used the mix in a face mask, this article is for you.
What Happens Chemically When You Mix Baking Soda and Lemon?
At the core, baking soda (sodium bicarbonate) is a base, while lemon juice is acidic. When combined, they react immediately—fizzing and bubbling—as carbon dioxide gas is released. This neutralizes some of the acidity of the lemon juice, creating a mild, slightly salty solution.
So, what does that mean for your health?
Here’s the simplified breakdown:
- Baking soda = alkaline (basic)
- Lemon juice = acidic (pH around 2)
- Mixed together = temporary neutral pH (closer to 7), but not stable in the body
This reaction is harmless in small quantities, but consuming it regularly can affect your digestion, electrolyte balance, and even your teeth or stomach lining over time.
Common Uses People Try — and What Experts Say
People use lemon and baking soda in a variety of ways, from drinking it to applying it on the skin. Let’s explore the most common uses and what’s known about their effects.
1. For Digestion and Acid Reflux
Many people mix baking soda with lemon water as a home remedy for acid reflux or heartburn, hoping it will balance stomach acid.
What experts say:
- Baking soda may neutralize stomach acid temporarily (WebMD), which could ease occasional heartburn.
- However, it’s not a long-term solution. Overuse can disrupt your natural stomach acid and lead to more issues like indigestion or bloating.
⚠️ Important: If you’re using this remedy often, talk to your doctor. Frequent heartburn may be a sign of GERD or other underlying conditions.
2. For Detox or Alkalizing the Body
You may have heard claims that lemon and baking soda “alkalize” the body or “flush out toxins.” While it’s a popular belief, it’s not entirely accurate.
What experts say:
- Your body maintains its pH balance through your lungs and kidneys.
- Food and drinks can’t change your blood’s pH, though they can impact urine pH slightly.
- There is no scientific evidence that this combo removes toxins.
So while the drink may make you feel refreshed, it’s not a magical detox solution.
3. For Skin Brightening or Acne
Some apply lemon juice and baking soda as a face mask to brighten the skin or reduce acne.
What experts say:
- Lemon juice can be harsh and irritating, especially when applied directly to the skin.
- Baking soda can disrupt the skin’s natural pH barrier, leading to dryness, redness, or sensitivity.
- Dermatologists generally don’t recommend this combination for skin care, especially if you have sensitive or dry skin.
Instead, opt for gentle, pH-balanced skincare products approved by dermatologists.
Potential Risks to Know
While baking soda and lemon are safe in small amounts, using the mix regularly may pose risks:
1. Stomach and Digestive Issues
Too much baking soda can:
- Cause gas or bloating from the carbon dioxide produced
- Lead to alkalosis, a serious condition that throws off your body’s pH (especially if you have kidney issues)
- Interact with certain medications, such as blood pressure drugs or antibiotics
2. Dental Enamel Erosion
Lemon juice is highly acidic, and frequent exposure may wear down your tooth enamel. Adding baking soda doesn’t completely cancel out this effect.
To reduce risk:
- Use a straw if drinking this mixture
- Rinse your mouth with plain water afterward
- Avoid brushing your teeth immediately after drinking acidic beverages
3. Skin Sensitivity
As mentioned earlier, applying lemon juice and baking soda to the skin can lead to:
- Irritation
- Dryness
- Possible discoloration when exposed to sunlight
Always patch-test new skincare ingredients and consult with a dermatologist before applying anything homemade to your face.
When (and How) It Might Be Okay to Use
If you still want to try baking soda and lemon together, use moderation and follow safe practices:
Occasional Uses Might Include:
- A mild rinse for a sore throat (once in a while)
- Refreshing drink after a heavy meal (1–2 times per week max)
- Natural cleaner for your sink or kitchen—not your body
How to Prepare a Safer Version:
If you’re drinking it:
- Use ½ teaspoon of baking soda
- Add the juice of ¼ fresh lemon
- Mix into 1 full glass (8 oz) of water
- Drink it slowly, and not on an empty stomach
Limit to no more than 2–3 times per week, and monitor how your body feels.
Healthier Alternatives to Try Instead
Looking for ways to feel energized or improve digestion without possible side effects?
Here are a few evidence-backed options:
- Warm lemon water alone: A gentle morning drink to support hydration
- Ginger or peppermint tea: Soothing for the stomach and great for digestion
- Apple cider vinegar diluted in water: May support blood sugar balance and appetite (1 tsp in 8 oz water)
- Probiotic-rich foods: Yogurt, kefir, or sauerkraut to support gut health naturally
Final Thoughts
The buzz around mixing baking soda and lemon isn’t entirely unfounded—there’s a real chemical reaction, and some people do find short-term relief. But that doesn’t mean it’s a fix-all. In fact, overusing this remedy may do more harm than good, especially for your stomach, teeth, or skin.
If you enjoy experimenting with home remedies, just remember: simple doesn’t always mean safe or effective. Start small, listen to your body, and always check with a healthcare professional if you have ongoing health concerns.
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Comment below: Have you ever tried baking soda and lemon? How did it go?
*Disclaimer: This article is for informational purposes only and does not substitute professional medical advice. Consult your doctor before making health changes.
