What type of dietary substances can be included in dietary supplements?

Dietary supplements can encompass a wide range of substances designed to enhance nutrition and health, and the correct choice highlights this diversity. Electrolytes, herbs, and probiotics are all common constituents of dietary supplements, contributing to various health benefits and supporting body functions.

Electrolytes, which include minerals like sodium, potassium, and magnesium, are essential for maintaining hydration and muscle function. Herbs often carry a long history of use for their potential therapeutic properties. Probiotics, which are live bacteria that provide health benefits, are included for their role in gut health. Thus, this choice reflects the broad scope of what dietary supplements can include, which extends beyond just vitamins and minerals or protein powders.

In contrast, the other options are limited in their scope. Some suggest a narrow focus either on specific categories or on various food products that do not reflect the broader range encountered in dietary supplements.