A multivitamin is a dietary supplement that contains a combination of vitamins and minerals. It is designed to provide a convenient way to supplement your diet with essential nutrients that may be lacking in your regular food intake. Multivitamins typically come in the form of tablets, capsules, or chewable gummies.

The specific nutrients included in a multivitamin can vary depending on the brand and formulation. However, most multivitamins contain a range of vitamins such as A, C, D, E, K, and B-complex vitamins (including B1, B2, B3, B6, B12, biotin, folic acid, and pantothenic acid). They also usually include essential minerals like calcium, magnesium, zinc, selenium, and iron.

While multivitamins can be beneficial for individuals who have nutrient deficiencies or inadequate diets, it's important to note that they are not a substitute for a healthy and balanced diet. They are intended to supplement the nutrients you obtain from your food, rather than replacing them entirely.

Here are some popular and well-regarded multivitamin brands in the USA:

Garden of Life: This brand offers a range of multivitamins made from whole food ingredients and certified organic sources.

Rainbow Light: Rainbow Light is known for its multivitamins that are targeted towards specific populations, such as men, women, prenatal, and 50+ adults.

MegaFood: MegaFood produces multivitamins that are made from real food sources and are often available in formulations tailored to different life stages and needs.

Thorne Research: Thorne Research is a reputable brand that provides a variety of multivitamins, including options formulated for athletes, prenatal support, and general wellness.

NOW Foods: NOW Foods offers a wide selection of multivitamins at different price points, focusing on quality and effectiveness.

Nature Made: Nature Made is a well-known brand with a range of multivitamins targeting various demographics and nutritional needs.

These are just a few examples, and there are many other quality multivitamin brands available in the USA. It's important to read product labels, consider any specific dietary restrictions or preferences, and consult with a healthcare professional to determine the best multivitamin for you. Additionally, conducting your own research and reading customer reviews can help you make an informed decision.