U.S. Protein Supplements Market To Reach 20.4 Billion By 2033

U.S. Protein Supplements Market Growth & Trends

The U.S. protein supplements market size is estimated to reach USD 20.4 billion by 2033, expanding at a CAGR of 9.4% from 2026 to 2033, according to a new report by Grand View Research, Inc. The market is experiencing steady growth driven by several factors, including the increasing demand for sports nutrition supplements and the rising number of health-conscious consumers.

The growing awareness among individuals in the U.S. about maintaining their health and well-being, along with the proliferation of gyms, health clubs, and fitness centers, is expected to drive the demand for sports nutrition products. The rise in obesity cases in the country is another factor contributing to the increased demand for sports nutrition products, as consumers engage in sports and physical activities to combat obesity. Additionally, the participation of U.S. athletes in national and international sporting events is anticipated to fuel the demand for sports nutritional supplements.

Whey protein, derived from milk, is a commonly used ingredient in protein powders and beverages. Its inclusion allows manufacturers to reduce the use of synthetic ingredients, making their products more natural. With consumers from the U.S. becoming increasingly concerned about the ingredients in the products they consume, the use of organic ingredients in sports nutritional products is gaining traction. The market is also benefiting from the growing demand for sports nutrition products among consumers who engage in occasional physically demanding activities.

Certain protein supplement manufacturers are incorporating organic and natural ingredients into their product lines, driving market growth in the country. The use of appealing and informative packaging has led consumers to spend more on premium supplements, including protein supplements. Factors such as nutritional value, brand reputation, and safety play a role in consumers' purchasing decisions. Increasing consumer awareness about the benefits of dietary supplements through various channels, such as electronic and print media, is expected to further influence their buying behavior in the future.

The trend of proactively preventing chronic health issues has increased the demand for nutritional supplements in the U.S., as they contain essential ingredients that improve overall health. Moreover, personalized nutrition is gaining popularity in the U.S., which is expected to drive the demand for dietary supplements and contribute to the growth of the protein supplements industry in the country.

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U.S. Protein Supplements Market Report Highlights

• Animal-based protein supplements led the U.S. protein supplements industry, accounting for a share of 58.6% in 2025, owing to rising consumer focus on high-quality, complete protein sources that support muscle recovery, weight management, and overall wellness.

• Protein powder dominated the U.S. protein supplements market, accounting for a revenue share of 48.7% in 2025. Protein powder demand in the U.S. is rising due to a combination of evolving health priorities, lifestyle changes, and broader consumer awareness around nutrition.

• Protein supplements used for functional foods dominated the U.S. protein supplements industry, holding a revenue share of 50.7% in 2025, driven by increased awareness of the role of protein in muscle maintenance, weight management, and metabolic health.

• Sales of U.S. protein supplements through online stores held the largest revenue share of 40.8% in 2025. Consumers increasingly prioritize convenience, personalization, and seamless purchase experiences, factors that online platforms are uniquely positioned to deliver through extensive product assortments, subscription options, and targeted recommendations.

U.S. Protein Supplements Market Segmentation

Grand View Research has segmented the U.S. protein supplements market on the basis of type, application, and region:

U.S. Protein Supplements Source Outlook (Revenue, USD Million/Billion, 2021 - 2033)

• Animal-based

  • Whey

  • Casein

  • Egg

  • Fish

  • Others

• Plant-based

  • Soy

  • Spirulina

  • Pumpkin Seed

  • Wheat

  • Hemp

  • Rice

  • Pea

  • Others

U.S. Protein Supplements Product Outlook (Revenue, USD Million/Billion, 2021 - 2033)

• Protein Powder

• Protein Bars

• RTD

• Others

U.S. Protein Supplements Application Outlook (Revenue, USD Million/Billion, 2021 - 2033)

• Sports Nutrition

• Functional Foods

U.S. Protein Supplements Distribution Channel Outlook (Revenue, USD Million/Billion, 2021 - 2033)

• Supermarkets

• Online Stores

• DTC

• Others

List of Key Players of U.S. Protein Supplements Market

• Glanbia Plc

• MusclePharm

• Abbott

• CytoSport Inc.

• QuestNutrition LLC

• BPI Sports

• The Bountiful Company

• AMCO Proteins

• Now Foods

• Transparent Labs