What you eat affects nearly every system in your body. The Global Burden of Disease study found that dietary risks are the leading risk factor for death worldwide – responsible for roughly 11 million deaths per year, more than tobacco or high blood pressure.

The biggest dietary risks are not exotic deficiencies. They are low intake of whole grains, fruit, and vegetables, combined with high intake of sodium and processed meat. The average American scores just 59 out of 100 on the Healthy Eating Index, and only about 10 – 12% of adults meet basic fruit and vegetable recommendations.

Diet also shapes how you feel day to day. Higher diet quality is consistently associated with lower rates of depression, and a randomised trial found that young adults who increased their fruit and vegetable intake for two weeks reported improvements in motivation and vitality. Beyond personal health, the food system accounts for roughly 26% of global greenhouse gas emissions, making what you eat one of the most significant daily environmental choices you make.

People care about food for different reasons. This site scores every nutrition intervention across three core values. Later, you'll set your own weighting across these three values, and the site will rank interventions by how well they deliver on the things you actually care about.

Health & Longevity

Diet quality that supports bodily health and function – nutrient adequacy, disease prevention, energy provision, digestive health, and metabolic balance. People who lean towards this value focus on food choices that deliver optimal nutrition for immediate function and long-term health, with particular attention to nutrient density and physiological effects.

Enjoyment & Culture

The sensory pleasure and social dimensions of eating – taste satisfaction, dietary variety, cultural food traditions, and the role of meals in relationships and community. People who lean towards this value emphasise building a diet they genuinely enjoy, maintaining food traditions that connect them to others, and treating meals as experiences.

Ethical & Environmental Impact

The broader consequences of dietary choices on the planet and other beings – sustainability, carbon footprint, animal welfare, biodiversity, and fair labour practices. People who lean towards this value focus on what they choose to eat and where it comes from, favouring diets with lower environmental impact and greater alignment with their moral commitments.

The Top 0.1% band represents roughly 1 in 1,000 people. To give you a sense of what that looks like for each nutrition value:

Awareness means knowing your starting point. Answer each question below – some you might know off the top of your head, others might take a few minutes to look up or test.

You now understand why nutrition matters, what different people get out of it, what's achievable, and where you currently stand. The final step is to set your personal value weightings and see which interventions are the best fit for you.

On the interventions page, adjust the sliders to reflect how much you care about health and longevity, enjoyment and culture, and ethical and environmental impact. The table will re-rank interventions to match your priorities.

Go to Nutrition Interventions →