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Child & Teen Health

Do toddler formulas deliver on nutrition claims?

Formula companies claim that toddler formulas, also known as "follow-up formulas," "transition formulas," or "growing-up milks" offer nutritional benefits to toddlers. But are these products necessary and healthy?

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A teal green square with the words 500,000 gut infections caused by C. diff and Stat of the week; upper left has chart graphic, bottom right has Harvard Health Publishing logo

Every year, nearly 500,000 people in the US suffer from a gut infection caused by a bacteria known as Clostridioides difficile, or C. diff. It can trigger severe diarrhea that lasts for weeks, months, or even longer. Some cases are life-threatening.

All of us carry C. diff bacteria on our skin and in our stool. Yet the spores only sicken people whose gut microbiome becomes imbalanced, sometimes after taking antibiotics or due to a weakened immune system. How can we prevent or treat C. diff?

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