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Bio·span /ˈbaɪ.əʊ.spæn/ · noun
1. from the ancient Greek bios, life: the span of a life; lifespan.
Biospan was founded in 2020 by Maximilian Burrell, at the height of the pandemic, a strange moment when we had more health science than ever, yet food quality was collapsing. Supermarkets, restaurants, even hospitals served ultra-processed food and aisles of sweets and fizzy drinks, but almost nothing real.
Most companies start from “how do we make this cheaper and easier?” We started from the opposite end:
We started with a question, how can you make maximised nutrition as easy as possible?
What’s actually possible when you refuse to compromise? That question led to BioCheffing: clean meals designed around your health and biology, cooked in your home. People from every walk of life wanted in: athletes, celebrities, business titans, people managing complex health conditions, singles, couples and families.
Maximised nutrition is a diet designed around your biology, cooked from clean, organic whole foods. Both must be true at once. A personalised plan cooked from poor ingredients fails, and perfect ingredients on a generic plan fail too.
No two bodies respond to food the same way. One person does well on a low-carb diet, another on a high-carb one. Your allergies, your intolerances, your gut health and how well you absorb nutrients, your genetics and any pre-existing condition all change what a clean, health-based diet should look like for you. Context matters just as much: when you are travelling, can you realistically get hold of the right food? Personalised nutrition means knowing what you should eat and being able to get it, so we personalise the access as well as the plan. A diet only maximises your health when it is designed around your goals, requirements and biology, tuned over time with biomarker testing, and available wherever you are. A generic plan, however healthy, is optimised for the average person, not for you.
Even a perfectly designed diet fails if the ingredients are poor. Organic is the start. The whole food matters as much: a whole food carries its fibre, fats and micronutrients together, the whole food matrix, and that changes what your body does with a meal. Ultra-processed food strips that matrix out and adds what was never food: industrial seed oils, refined sugar and additives. Nutrient density and pesticide load change the meal too. The plan is only as good as the food it is cooked from.
Read our full ingredient quality standards →
Currently there is no way to access food that is personalised for your body, made with clean organic whole foods, without cooking it yourself. And cooking to that standard takes significantly more time than normal cooking. It is often a part-time job.
Restaurants can't cater for you. Meal-prep services can't cater for you. Picking things up on the go always means compromising on both ingredient quality and personalised nutrition.
We wanted to make this easier. So we built the first BioCheffing service.



A self-built network of 14,000+ chefs, profiled by experience, cuisines, languages and nutrition background, so we can match one precisely to your household.
Practitioners registered with BANT, the CNHC and the ANP support your intake. Your personalised nutrition programme and your testing run with our nutrition partners, and we work alongside your own clinic or trainer where you have one. The result is a set of requirements your chef cooks to every week.
Your chef shops from your preferred suppliers or from our vetted supplier list (in BETA), held to Biospan’s sourcing standards. Behind the service we are building the tools that run it: chef profiles, menu planning and feedback from your chef, so the service improves week after week.
Founders, recruiters, engineering, and nutritionists registered with BANT, the CNHC and the ANP, all on one team.
Read testimonials →




Chefs are registered with Biospan based on their nutrition experience. We match them with you depending on your requirements and household fit.
Find My BioChef →
BSc Nutrition · MasterChef · Macro targets

Nutritionist · Sports science · Mediterranean

Naturopathic trained · Mediterranean · Seasonal

Michelin background · TV chef · 25+ years

Michelin trained · Classical French · 20+ years

Catalan & Spanish · Seasonal · Slow cooking

Clean food · 10+ years
Practitioners registered with BANT, the CNHC and the ANP are part of the Biospan team and support your intake. Your personalised nutrition plan and your testing run with Cellular Performance, our partner.




Our chefs cooked every one to a plan written for that client, in their kitchen or delivered to their door.
We built it chef by chef, profiling every chef by experience, cuisines, languages and nutrition background, so we can match one precisely to your household.
Food designed around your biology, cooked from clean organic whole foods, woven into your life rather than organised around it: at home, between cities, wherever life takes you.
Clean, organic food cooked to your nutrition, in your kitchen every week, without you having to think about it.
Find My BioChef