Are you wondering why your baby's feet smell like vinegar and whether it's normal? The most common reason for vinegar-like foot odor in babies is excessive sweating.

Infants are born with fully functional sweat glands on their feet, and some babies naturally produce more sweat than others—a condition called hyperhidrosis.

I recommend barefoot walking whenever possible so that toddler feet can stay dry, which helps prevent the moisture buildup that leads to odor-causing bacteria growth.

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What Causes the Vinegar Smell in Baby Feet

When your baby's feet are sweaty for extended periods, normal skin bacteria break down sweat components, producing that distinctive vinegar-like odor. This process is completely natural but can be managed effectively.

However, in rare cases, persistent vinegar odors may indicate metabolic disorders like isovaleric acidemia, where the body cannot properly process certain proteins. One in 2,500 infants is born with an inborn error of metabolism, though most babies are screened for these conditions at birth [1].

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How to Prevent and Treat Vinegar-Smelling Feet

The key to preventing toddler feet from smelling like vinegar is keeping feet dry:

• Keep your baby barefoot whenever possible indoors
• Choose 100% cotton socks when footwear is necessary
• Remove shoes and socks immediately when coming indoors
• Give daily baths with mild antibacterial soap
• Avoid synthetic materials that trap moisture
• Temporarily avoid foods like garlic, onions, and curry that can cause malodorous sweat

For outdoor protection, choose breathable shoes that allow air circulation. These are the best shoes for active play. Anti-perspirants and deodorants are not appropriate for infant use.

When to Consult Your Pediatrician

Most vinegar-like foot odors resolve with proper hygiene and keeping feet dry. However, contact your healthcare provider if:

• The odor persists despite preventive measures
• You notice skin peeling or redness between toes (possible fungal infection)
• The smell becomes stronger over time
• Other symptoms accompany the foot odor
• You notice "cheesy" odors with skin changes

» Try orthopaedic shoes to prevent moisture build-up

Will Proper Footwear Helps Prevent Foot Odor

The type of shoes every child needs should prioritize breathability over style. Poorly fitted shoes trap sweat and create the perfect breeding ground for odor-causing bacteria.

How your toddler's shoes fit plays a huge role in preventing vinegar-smelling feet. Tight or non-breathable shoes cause sweat buildup, leading to that distinctive vinegar smell. Focus on proper fit and breathable materials when footwear is needed to keep little feet dry and odor-free.

Looking For Breathable Shoes

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