How To Read A Supplement Facts Panel, Step By Step

Why the panel is worth two minutes

The Supplement Facts panel is the boxed section on the back or side of a bottle. It is a standard format in the United States, which means that once you learn how to read one, you can read almost every supplement you pick up. It is a small skill with a very long shelf life.

People sometimes skip the panel and trust the front label, which is full of friendly colors and big words. The front is designed to stand out. The panel is designed to inform. Spending two minutes with the second is a calm, practical habit, and this guide breaks it into steps. There are six of them, and they run from the top of the box to the bottom, so you can follow along with a bottle in your hand.

We will use the SaltPeak bottle as the running example, since its Supplement Facts are printed on the bottle for you to compare.

Step one: the serving size

At the top of the panel you will find the serving size. This tells you what one serving of the product is, in units the brand picks, such as one gummy, two capsules or one scoop.

Everything below it is measured per serving, so this line is the key that unlocks the rest of the panel. If the serving size says two gummies and you plan to take one, the rest of the numbers will not match what you are doing. Always check it first. It is also worth noticing the unit. A serving of one gummy and a serving of two gummies can look similar on a quick glance, but the difference changes how long a bottle lasts.

For SaltPeak, the brand's suggested use is to chew one gummy daily as the label directs, and the panel on the bottle states the serving size in the standard format.

Step two: servings per container

Right below the serving size, you will see servings per container. This is the number of servings in the whole bottle, and it is how you work out how long a bottle lasts.

The math is simple. If a bottle has 30 servings and you use one serving a day, the bottle covers 30 days. A SaltPeak bottle holds 30 gummies, which is a 30-day supply, and the brand offers packs of 2, 3 and 6 bottles for 60, 90 and 180 days.

Step three: the ingredient rows

The main body of the panel lists the ingredients, one per row, usually with an amount and a percent daily value column. Here is how to approach it:

• Look at the name of each ingredient and notice whether it is a vitamin, mineral, amino acid or plant
• For plants, look for the Latin name and the plant part, such as root, bark or leaf
• Look at the form: powder, extract or a named compound
• Check whether an amount is shown, or whether the ingredient is inside a blend

Step four: percent daily value

The percent daily value column compares the amount in a serving to a reference amount that has been set for nutrients such as vitamins and minerals. It is a useful guide when you are looking at those nutrients.

Many ingredients have no reference amount, particularly plant-based ones. When that happens, the column shows a symbol, often an asterisk or dagger, which links to a short line at the bottom of the panel explaining that no daily value has been established. This is entirely routine and not a sign of anything unusual.

Step five: proprietary blends

Some panels group several ingredients under a single heading with a combined amount. This is called a proprietary blend. The ingredients inside are listed from the largest portion to the smallest, but separate amounts are not shown for each.

SaltPeak uses this format. Its blend names muira puama, maca, catuaba, green tea extract, ashwagandha, L-arginine and tribulus terrestris, along with two more listed on the bottle. For a full walk-through of how to read a blend, see our guide on what a proprietary blend means on a label.

Step six: other ingredients

Beneath the main panel there is usually a line called Other Ingredients. This lists everything in the product that is not in the rows above, such as the materials that give a gummy its shape, texture, color and flavor.

It is easy to overlook, and it is a good thing to read in full. It shows you what the product is made from beyond the headline ingredients, and it is where allergen information often appears too. Read the whole line, top to bottom, every time you start a new product.

Finally, glance at the bottom of the label for the manufacturer details, the lot number and the best-by date, which are useful to have on hand if you ever have a question about your bottle. Many people photograph the panel with their phone when they start a new bottle, which makes it easy to refer back to it later without digging through a cupboard.