If you’ve spent any time recently perusing the grocery shelves, it’s likely that you noticed that high-protein claims are penetrating more diverse food and beverage categories. In addition to the ubiquitous protein bars, protein powders, and protein shakes...you can now buy items such as protein pasta, protein bagels, protein waffles, protein chips, protein coffee, and even protein-boosted versions of dairy items like milk and yogurt. Consumers can’t seem to get enough protein. In fact, Google Trends showed that online search interest for the term “high protein” reached a 20-year high in early 2024 and has remained high since. Furthermore, among shoppers seeking healthier items, 42% said they’re interested in seeing more high-protein grocery products. Protein has become a kind of "holy water" that instantly anoints any food or beverage with a health halo. While the focus on high protein diets started in those shadowy niches of sports nutrition and weight management, there’s now increasingly diverse consumer cohorts that possess a heightened awareness around the value of this essential nutrient. And it’s that demographic diversity, being interested for different reasons, that's making protein a battleground category as it proliferates across the entire grocery store. But does this mean the protein bar category, that has been around for more than 70 years, needs to evolve if it hopes to stay relevant in the protein-ified grocery world? Once a niche product targeting athletes and bodybuilders, the supplement industry intelligently recognized that protein-based snack consumption had become a key component to a healthy active lifestyle. Protein bars are now marketed as “wellness” products targeting mainstream consumers that are quite different than the previous stereotypical, “curls for the girls” consumers of the past. But while that market expansion can be great…it also means the “one-size-fits-all” targeted consumer strategic marketing (and product) approach has become obsolete. So, then what’s next for protein bars? While I believe protein will remain a nutritional evergreen for many decades to come (and the protein category is still being below its “peak consumption” point), I also think there’s an emerging arbitrage…as consumers move closer towards this four-way intersection of taste, convenience, nutrition, and functionality. It seems every multi-billion-dollar functional CPG category is in the early innings of a remarkable transformation, as consumers have started to evolve further into seeking multifunctional benefits that contribute to overall wellbeing. Just like “protein” seems to be popping up more in unexpected food and beverage CPG products, different adaptogens, herbal extracts, and other nutraceutical ingredients will start being included in more protein bars. And while there’s infinite opportunities to leverage a sequence of dimensions that are shaping the future of the supplement industry (e.g. benefits, ingredients, use occasions, and consumer preferences), my latest first principles thinking content will focus on three of the most viable "protein bar plus" need states; cognitive health, gut health, and mood support. But while it seems obvious that more functional ingredients will find their way into protein bars, it also doesn’t mean there isn’t ample growth prospects for plain ole protein bars that further evolve because of food science advancements, innovative production capabilities, and food technology.