Study Explores Why Diets Affect People Differently
Research from Dr. Max Petersen at Washington University School of Medicine is exploring why diets like keto can be effective for some individuals but pose cardiovascular risks for others, according to the university's Department of Medicine. The work emphasizes the need for personalized nutrition science to optimize health and longevity. It suggests that genetic and metabolic differences are key to dietary outcomes.
- A 2023 study presented at the American College of Cardiology's Annual Scientific Session found that a "keto-like" diet was associated with a more than two-times higher risk of major cardiovascular events, such as heart attacks and strokes. The study followed 305 individuals on a low-carbohydrate, high-fat diet and compared them to approximately 1,200 people on a standard diet over a decade. After an average of 11.8 years, 9.8% of those on the keto-like diet experienced a significant cardiac event, compared to 4.3% in the standard diet group. - The global personalized nutrition market was valued at approximately $15.97 billion in 2025 and is projected to experience significant growth, with some estimates suggesting it could reach $48.57 billion by 2033, growing at a CAGR of 15.03%. Another forecast projects the market to reach $66.95 billion by 2034, with a CAGR of 18.11%. This growth is driven by increasing consumer health awareness and advancements in technology that enable tailored dietary solutions. - AI-powered personalized nutrition startups are attracting venture capital by leveraging machine learning to create customized meal plans based on user data from wearable devices and clinical lab tests. In 2025, U.S. digital health startups secured $14.2 billion in funding, a 35% increase from 2024, with AI-enabled companies capturing 54% of that funding and commanding a 19% premium on average deal size. - For consumer health apps, HIPAA compliance is critical when handling Protected Health Information (PHI). However, HIPAA regulations generally do not apply when a health app collects information directly from consumers for their own use, such as in wellness or nutrition tracking apps, unless the app is provided by a "covered entity" like a healthcare provider. - Successful consumer health apps like Headspace have utilized App Store Optimization (ASO) to increase visibility and attract new users. Other effective user acquisition strategies include focusing on retention to reduce costs, building trust by offering free, expert-driven content, and leveraging social media with channel-appropriate organic content. - The "biohacking" community utilizes self-experimentation with tools like wearable devices and blood tests to optimize nutrition and extend healthspan. This can involve dietary interventions such as intermittent fasting and ketogenic diets, which have been shown to influence cellular pathways related to longevity. - Dr. Max Petersen's research at Washington University focuses on insulin resistance, obesity, and diabetes. His work involves using isotope tracer studies to understand metabolic diseases in humans, including the mechanisms of lipid-induced hepatic insulin resistance. - Venture capital funding for digital health in the U.S. reached $14.2 billion in 2025, a significant increase from $10.5 billion in 2024. However, the number of deals decreased, indicating a concentration of capital into larger rounds for more established or high-potential startups, particularly those utilizing AI.
