Professor Bart Kay - Nutrition and Health Science

About Professor Bart Kay

Professor Bart Kay is a New Zealand-based health and education creator with 60,600 YouTube subscribers and 7,423,960 total views across 860 published videos. His channel focuses on nutrition science and health education, with a secondary emphasis on educational content delivery. Kay holds a background as a former university professor specializing in cardiovascular and respiratory physiology, exercise physiology, nutrition, research methods, and statistics. He has authored peer-reviewed research articles and book chapters in his field. Beyond content creation, Kay maintains active professional consultancies with high-profile organizations including the New Zealand All Blacks rugby team, the National Rugby League (NRL), and both New Zealand and Australian Defence Forces. This combination of academic credentials and elite-level advisory work positions his content within the evidence-based health education segment. Kay operates a primary YouTube channel (@bart-kay) alongside an alternative channel (@Prof-Kays-Carnivore-Cult) focused on carnivore diet content. He also maintains a Discord community for audience engagement and offers consulting services, merchandise, and a nutrition program (Adult Stem Cell Nutrition) through linked platforms.

Professor Bart Kay's estimated sponsorship rates

Professor Bart Kay's estimated sponsorship rate for integrated YouTube video placements ranges from $331 (low) to $827 (high), with a typical rate of $551 per video. This pricing reflects his subscriber base of 60,600 and the niche characteristics of health and nutrition education content. The estimate is calibrated as a metric-based calculation without direct community pricing data, placing him in the low audience-tier category relative to broader YouTube creator benchmarks. His rate positioning is influenced by several factors: subscriber count in the 60,000 range, which is comparable to peers like Médicos Ecuador (58,900 subs) and ものくろマスク (58,000 subs), and the specialized nature of health science content, which typically commands moderate CPM rates depending on advertiser demand and geographic audience composition. As a New Zealand-based creator with an English-language health and education focus, his audience likely skews toward developed-market demographics, which can support higher per-view rates than global average health content. The rate range reflects typical variation in sponsor budgets and campaign scope rather than performance-based fluctuation.

Who should partner with Professor Bart Kay?

Professor Bart Kay's audience comprises 60,600 subscribers accumulated across 860 videos, indicating a niche but established viewership in health science education. The audience composition aligns with evidence-based health and nutrition content consumers, likely including fitness enthusiasts, health-conscious individuals, nutrition students or professionals, and followers of specific dietary approaches (particularly given his alternative carnivore-focused channel). Brand categories suited to this audience include dietary supplement companies, fitness and wellness platforms, nutrition education services, health technology and tracking apps, sports nutrition brands, and professional development platforms for health practitioners. His consultancy background with elite sports organizations (All Blacks, NRL) and defense forces suggests credibility with performance-oriented audiences, which may extend his appeal to sports nutrition and athletic performance brands. Peer creators in comparable subscriber ranges—such as Dr Suhaib Azmi (71,500 subs) and Gynae ki Doctor (72,900 subs)—operate in similar health-education niches with comparable audience sizes, indicating a stable market segment for specialized medical and nutritional content. The presence of an active Discord community indicates engaged audience members willing to participate in deeper discussion, suggesting potential for community-focused sponsorships or ambassador programs.

Professor Bart Kay's growth and performance

Growth data is limited to a single snapshot. Professor Bart Kay was first tracked on 2026-05-12 at 60,600 subscribers, with the latest snapshot also recorded on 2026-05-12 at 60,600 subscribers, representing a span of 1 day with zero net change. This single-day window does not provide sufficient data to assess meaningful growth trends, seasonal patterns, or subscriber acquisition velocity. Average views over the last 30 days are not yet available in the tracking history. Longer-term growth analysis will require additional snapshot data collected over weeks or months to establish reliable patterns.

How our pricing estimate works for Professor Bart Kay

The algorithmic price estimate of $331–$827 (typical: $551) is calculated using a formula that multiplies subscriber count by niche-specific CPM (cost per thousand views), adjusted for platform and content format multipliers. The estimate is classified as metric-based calibration, meaning it derives from the creator's observable metrics (60,600 subscribers) rather than direct community pricing submissions. Because no community data points have been collected for this creator, the estimate relies on historical CPM benchmarks for health and education content on YouTube. For a detailed explanation of the CPM multipliers, platform adjustments, and niche classifications applied, see the /methodology page. Actual sponsorship rates may vary based on factors including campaign scope, audience geography, engagement metrics, and negotiated terms between creator and brand.