The body can also use protein as a source of energy. The protein found in KIND bars largely comes from the significant amount of nuts included in each recipe. As is the case with fiber, the amount of protein found in KIND bars varies significantly depending on variety.

The short answer is yes, Kind Bars are gluten-free. Of course, ingredients and claims can change anytime, so the latest and best information will always be on the label itself. (Read: Formerly Gluten-Free Products that Now Contain Gluten.)

Their "healthy" label is misbranding, says the FDA. Sad news: Kind bars, the "healthy" snack packed with nuts and fruits, aren't actually that great for you, according to the Food and Drug Administration.

While protein bars can be enjoyed regularly, consuming them as meal replacements or as your primary protein source isn't recommended. Pay close attention to nutrition labels, as many protein bars contain added sugars, saturated fats and other low-nutrient ingredients.

Kind bars may look natural but, in addition to sugar, some contain a variety of artificial sweeteners, flavors and preservatives, which according to Dr. Mark Hyman, “can disrupt our gut microbiome and lead to inflammation and weight gain.” Not exactly the kind of gut feelings we're looking for in a snack.

No, a protein bar is not the same as an energy bar. While both are convenient snacks, protein bars are typically high in protein and used for muscle recovery and as a protein supplement. In contrast, energy bars are high in carbohydrates and intended to provide quick, sustained energy.

These bars are made with almonds and peanuts, two foods that have been particularly impactful for people trying to maintain healthy blood pressure. A meta-analysis evaluating 16 studies shows that almond intake can reduce diastolic blood pressure (which is the bottom number in a blood pressure reading).

For what it's worth, Kind bars also include honey, sugar, and glucose, which are all forms of sugar, but they contain about 5 grams compared to about 20 grams in a Clif Bar. If you have a long run planned and need quick fuel either before or during your workout, then grab a Clif Bar.

Palm oils, soy protein isolate and so-called natural flavors are also red flags. Instead, reach for a bar with fewer ingredients and make sure you recognize them and can pronounce them. Think: nuts, raisins, seeds, honey or even dark chocolate.

Protein Bars Help You Get Those Grams Michelle Hawksworth, R.D., registered dietitian for Muscle and Brawn, agrees. “The best brands of protein bars can cater to the health needs of older adults while allowing them to enjoy the journey as well,” she says. Not all bars are created equal, however.

Kind bars may look natural but, in addition to sugar, some contain a variety of artificial sweeteners, flavors and preservatives, which according to Dr. Mark Hyman, “can disrupt our gut microbiome and lead to inflammation and weight gain.” Not exactly the kind of gut feelings we're looking for in a snack.

KIND: KIND healthy grain bars are high in nutrients, and while they do contain a little added sugar, it's typically low, says Ayoob. For example, a KIND cinnamon oat bar contains just 5 grams of added sugar.