Spoiler alert: Science doesn’t back the numerous health claims

Could your feet serve as a gateway to release toxins from your body? That’s the theory behind foot detox bath systems — but making that magic happen comes at a price.

Buying one of these units for at-home treatment could cost upwards of $2,000. If you’re more of a visit-the-spa person, a half-hour foot detox session typically starts around $30 and can go much higher.

But before you plop down any cash, let’s dip our toes into the scientific waters and review the published research with functional medicine specialist Melissa Young, MD.

What is a foot detox?

A foot detox is a therapy that claims to remove your body’s negative toxins through your feet and five little piggies.

The setup typically looks like a basic foot wash, with a plain tub filled with warm water. The twist? An ionizing machine sends out a low-voltage electric current to charge atoms in the water molecules.

It’s said that these charged atoms attract and neutralize negative toxins in your body. Basically, the impurities gumming up your system get removed through your feet as if drawn out by a magnet.

Want proof it’s working? Advocates say to just look at the water, which slowly gets discolored during the detoxing process. Some gunky crud may also float to the top of the tub.

“It’s a great show,” says Dr. Young. “That’s part of the reason why it’s so convincing.”

Is there scientific proof that foot detoxes work?

Research on ionic footbaths is scarce and not very complimentary, notes Dr. Young. One of the more widely cited studies was published more than a decade ago and offers a rather blunt assessment of their health claims.

“We found no evidence to suggest that ionic footbaths help promote the elimination of toxic elements from the body,” researchers wrote.

It’s also important to note the disclaimers that usually accompany foot detox systems — primarily, that these units are NOT considered a medical device to treat or prevent health ailments.

The evidence points to one conclusion when it comes to whether foot detoxes are legit: “From a scientific perspective, there is no legitimate research to support the claims,” states Dr. Young.

But why does the water change color?

The explanation is rather simple, according to researchers. Impurities in the water (think tap water) often react to the ionization process and add a tint. Corroded metal in the unit also may contribute.

Numerous videos posted online show the water in a foot detox tub changing colors even without feet being soaked.

Claimed foot detox benefits

Foot detox believers say the ionically charged water provides a … well, supercharge to help them power through daily life. Anecdotal accounts of ionic foot baths working wonders aren’t hard to find.

Breathless testimonials flood websites and message boards, with supporters sharing their life-changing experiences. Touted benefits include:

  • Increased energy
  • Clearer thinking
  • A boosted immune system
  • Improved sleep
  • Fewer aches and pains

“There are a lot of people who love ionic foot baths and believe they see benefits,” shares Dr. Young. “But we don’t have valid scientific evidence to support these claims. There’s no research behind it.”

Are there risks with doing a foot detox?

Other than damage to your bank account, there’s no harm in trying a foot detox for most people, says Dr. Young. But there are some exceptions. You should avoid a foot detox bath if you have:

  • Open sores on your feet, due to the increased risk of infection
  • A pacemaker or other implanted electrical devices, due to concerns that the low-voltage electric current may disrupt the equipment
  • Diabetes-related neuropathy, given the possibility of open sores or wounds, plus decreased sensitivity in your feet, which can make it difficult to gauge whether the water is too hot

Many foot detox systems also advise against use by children and pregnant women.

Other types of foot baths

Soaking your feet in warm water can do some good. Research shows that a foot bath may improve sleep quality, for instance. And adding magnesium salts to a foot bath can help reduce skin inflammation.

Epsom salt baths are also pretty popular, though scientific research isn’t quite as bullish as user testimonials.

“There’s no denying that a foot bath can be soothing and leave you feeling pretty relaxed after a long, tough day,” recognizes Dr. Young. “Plus, feet take a beating in daily life. They deserve a little TLC, right?”

So, why are foot detoxes looked at differently than foot baths? “It comes down to the health claims,” she clarifies. “Foot detoxes are high on promises and low on scientific proof that they can deliver on them.”

Addressing toxins in your body

If worries about toxins lured you to a foot bath detox, there are better ways to help your body naturally cleanse its system, notes Dr. Young. She offers these four simple tips to help minimize and shed toxins.

“Living healthier often comes down to lifestyle,” emphasizes Dr. Young. “Changing that isn’t as easy as putting your feet in a tub, but you’re going to get better results.”