Carbon Performance warns against relying on AI for health advice

Carbon Performance says generative AI chatbots are becoming a common source of fitness and nutrition guidance, but that advice can be incomplete, inaccurate or unsafe without a certified professional’s review. The company is urging users to treat AI as a basic helper, not a substitute for personalized coaching or medical care.

Why it matters: - Hundreds of millions of people are now using generative AI tools for health, weight loss and fitness advice. - Carbon Performance says that shift raises the risk of bad nutrition and exercise guidance being treated as personalized care. - The company says the stakes include overtraining, overly aggressive dieting, obsessive macro tracking and missed warning signs that a trained professional would catch. - Carbon Performance says AI can be useful for simple tasks, but not for decisions that affect safety, recovery or long-term results.

What happened: - Carbon Performance nutrition and exercise experts issued a warning about using AI chatbots for workout and meal-planning advice. - The caution applies to tools such as ChatGPT, Claude, Gemini and Google AI Mode. - Logan Harsson, Carbon Performance Nations Personal Training Manager, said AI does not know whether an answer fits the person asking. - Harsson said AI may give a technically correct protein target, but that range may still be unsafe or ineffective for an individual.

The details: - Carbon Performance points to several limits in generative AI: hallucinations, bias, lack of context, agreeability and no hands-on human oversight. - AI tools can generate false information with confidence and may lean on unreliable sources. - AI systems learn patterns from human-created data, which can include prejudice, incomplete information and opinions. - Harsson said AI can amplify myths and dangerous advice, including excessive calorie deficits and a no-days-off mentality that can lead to overtraining and poor recovery. - Carbon Performance says a qualified trainer uses science-backed education and hands-on experience rather than influencer content or search rankings as a source of truth. - AI only knows what a user types, but a safe plan may also depend on medical history, body composition, metabolism, hormones, sleep, stress, food behavior, injuries, mobility and movement patterns. - Harsson said two people with the same age, height and weight can need very different approaches. - Carbon Performance says AI can miss signs of disordered eating or normalize extreme restriction. - Harsson said that is especially risky in calorie counting and macro tracking, where AI may not set guardrails to prevent obsession. - Carbon Performance said it teaches clients to use ranges instead of exact targets, pre-plan meals to reduce app-checking and include tracking-free days to support intuitive eating. - AI also tends to be agreeable, which can reinforce bad ideas instead of challenging them. - Harsson said AI may encourage an overly aggressive diet and excessive cardio if a user asks for fast weight loss. - Harsson said a chatbot is more likely to accept claims of progress problems at face value instead of asking follow-up questions about food tracking, workout intensity, consistency, sleep, stress or recovery. - Carbon Performance says a human coach should ask follow-up questions, challenge excuses and make decisions based on what is best for the individual. - Harsson said safe advice requires knowing the difference between a reason, an excuse and a red flag. - AI also cannot provide in-person accountability, real-time corrections or the social support that can keep people consistent. - Harsson said a trainer can spot form issues during the workout, while an AI review may come after the reps are already done. - Carbon Performance says regular check-ins help identify what is limiting progress before someone gives up. - Harsson said an AI chatbot will not ask about sleep, honesty in food tracking, skipped sessions or workout effort. - Carbon Performance also argues that depending on AI for training can add to social isolation, which is already a public health concern.

Between the lines: - Carbon Performance is not arguing that AI has no place in fitness. - The company says AI can help explain basic terms, organize grocery lists and generate recipe ideas. - The broader message is that convenience can blur the line between general information and individualized coaching. - In a field where small inputs can change outcomes, the company is framing human judgment as a safety feature, not a luxury.

What's next: - Carbon Performance is urging people to treat AI-generated diet and exercise guidance with extreme caution. - The company says users should not accept AI advice as true without a qualified professional reviewing it. - Harsson said even simple questions like what to eat before and after a workout do not always have a universal answer. - Carbon Performance says the rise of AI has increased the need for awareness around who is giving health advice. - The company directs readers to more information on its website.

The bottom line: - AI can be a starting point for fitness and nutrition questions, but Carbon Performance says it should not be the final authority on how people eat, train or recover.