Monk fruit sweetener, also known as luo han guo sweetener, is generally considered safe for most people and can be a healthier alternative to sugar due to its zero-calorie content and lack of artificial ingredients. However, when it comes to toddlers, it's important to exercise caution with any new foods or sweeteners.

While there isn't specific guidance on the minimum age for consuming Monk Fruit Sweetener, it's typically recommended to introduce new foods gradually and to consult with a pediatrician before adding any sweeteners to a toddler's diet. Toddlers have sensitive digestive systems, and some might have reactions to certain substances.

Here are a few things to consider:

Consultation: Always consult with your child’s healthcare provider before introducing any new sweeteners into their diet.

Age Appropriate Foods: Focus on providing whole, unprocessed foods that are appropriate for a toddler’s age and nutritional needs.

Minimal Use: If you do use monk fruit sweetener, start with a very small amount to see if your child has any adverse reactions.

Keep in mind that while monk fruit sweetener may be a better choice than refined sugars or artificial sweeteners, it's still best to limit the overall intake of sweetened foods and drinks in a toddler’s diet to promote healthy eating habits.