The Best Stool Softeners for Kids: What Parents Need to Know

Constipation is a common concern for kids, especially toddlers. Whether it’s due to picky eating, low fiber, or changes in routine, many parents end up reaching for a stool softener at some point. But with so many options, how do you choose what’s safe and effective?

The best stool softeners for kids are gentle, promote long-term digestive health, and work with—not against—the gut’s natural rhythms. Here are three approaches backed by research and widely recommended by pediatric dietitians.

1. Prebiotic Supplements

Best for: Daily digestive support and long-term regularity

Prebiotics are non-digestible fibers that feed the good bacteria in the gut. Two of the most effective prebiotics for kids arechicory root inulin and2’-fucosyllactose (2’-FL HMO), which support gut health by increasing stool bulk and helping soften poops naturally.

In one randomized clinical trial, toddlers who consumed inulin daily experienced improved stool frequency and consistency within just six weeks.¹ Prebiotics are not laxatives—they help build a stronger gut ecosystem over time, reducing the need for short-term fixes.

Begin Health Expert Tip:
Growing Up Prebiotics from Begin Health is a kid-friendly prebiotic fiber powder with both chicory root inulin and 2’-FL HMO. It’s tasteless, dissolves easily in food or drink, and is designed to be used daily for kids ages 1 and up.

2. Magnesium (Citrate or Glycinate)

Best for: Gentle, occasional relief from constipation

Magnesium supports gut motility by relaxing intestinal muscles and pulling water into the colon. The citrate form has a mild laxative effect, while glycinate is easier on sensitive stomachs. Both can be useful for kids with infrequent or hard stools, but the key is dosing appropriately.

For toddlers and young kids, doses in the40–60 mg per day range have shown stool-softening benefits without the risks of high-dose supplements.² It’s a great mineral to use periodically or as part of a hydration-focused digestive routine.

Begin Health Expert Tip:
Opt for Magnesium drink supplements made specifically for kids. These often include magnesium at the right forms and dosage.

3. Fiber-Focused Foods + Routine

Best for: Preventing constipation and maintaining gut health

No supplement can outdo a well-balanced diet and healthy habits. Increasing fiber intake, offering regular hydration, and creating a consistent potty routine are often the most overlooked (but powerful) ways to reduce constipation in kids.

Aim for:

• Fruits with skin (pears, apples, berries)

• Whole grains (oats, brown rice, seeded bread)

• Beans, lentils, and chia seeds

• Daily movement or play

• Routine potty time, ideally after meals when the body’s natural reflex kicks in

Fiber works best when paired with fluids. Without enough water, fiber can make constipation worse instead of better.

Summary

The best stool softeners for kids are the ones that work gently, consistently, and in sync with a growing digestive system. Prebiotic supplements likeGrowing Up Prebiotics, magnesium in the right form and dose, and simple daily routines rooted in fiber and hydration are the safest places to start. If your kiddo’s constipation is persistent or painful, always check in with your pediatrician for a personalized plan.