Diet Risk Score Calculator
Rate how often you eat nine types of food and this tool calculates your Diet Risk Score out of 27 points. The score reflects mortality risk linked to eating patterns, based on published nutrition research. A lower total means a healthier diet. You get a breakdown by food group, your unhealthy and protective food sub-scores, a risk band, and targeted advice for improving the highest-scoring areas.
What is the Diet Risk Score?
The Diet Risk Score (DRS) is a brief, validated screening tool that uses nine food groups to estimate how closely a person's eating pattern aligns with mortality risk. Developed in the nutrition science literature to connect habitual food choices to outcomes like cardiovascular disease, type 2 diabetes and stroke, it scores five unhealthy food groups (where more frequent consumption raises the score) and four protective food groups (where less frequent consumption raises the score). A total of 0 means virtually no dietary risk from the assessed foods; 27 represents the worst possible pattern across all nine categories. Because the tool covers food groups rather than individual nutrients, it captures overall eating patterns more faithfully than a simple calorie or macronutrient count.
How the scoring works
Each of the nine food groups is scored on a 0-3 scale. For unhealthy foods - fast food, refined-grain bread, salty snacks and sweet drinks - daily consumption earns 3 points, eating 2-3 times a week earns 2, once a week earns 1, and never earns 0. Processed and cured meats are a special case: any consumption at all earns 3 points because of the strength of evidence linking them to colorectal cancer and cardiovascular mortality. For protective foods - nuts and seeds, fish, vegetables and fruit - the scoring is inverted. Eating vegetables or fruit every single day earns 0 points. Eating them less often than daily adds points (indicating a protective food deficit). Nuts earn 0 points when eaten daily or 2-3 times a week, 2 points when eaten just once a week, and 3 points when never consumed. Fish follows a similar pattern. The unhealthy sub-score (max 15) and the protective deficit sub-score (max 12) add together for a total out of 27.
Which food groups carry the most risk?
Research consistently finds that processed meats carry the greatest per-consumption risk for colorectal cancer and cardiovascular disease - which is why even occasional consumption scores the maximum 3 points in this tool. Sweet drinks (sodas and flavored beverages) are strongly linked to obesity, metabolic syndrome and type 2 diabetes. Fast food eaten frequently raises intake of sodium, saturated fat, refined carbohydrates and ultra-processed additives all at once. On the protective side, the biggest gains typically come from eating vegetables and fruit every day (each scores 0 when daily) and from adding oily fish at least once a week. Nuts and seeds consumed 2-3 times a week already reach the optimal score of 0 for that group, making them one of the easiest dietary upgrades.
Limitations and how to use this result
The Diet Risk Score is a population-level screening tool, not a diagnostic test. It cannot account for portion size (a small handful of chips scores the same as a large bag), preparation method (steamed versus deep-fried), or individual variation in metabolism, medication use or genetic risk. It does not cover all food groups - whole grains, legumes, dairy and red (unprocessed) meat are not explicitly assessed here. Use the score as a conversation starter with a registered dietitian or doctor rather than as a definitive verdict on your health. Someone with a high score can meaningfully reduce risk by making even two or three targeted changes, such as swapping sweet drinks for water and adding vegetables daily. Repeat the assessment after a few months of dietary changes to track progress.
Diet Risk Score bands and what they mean
| Score range | Risk level | What it means |
|---|---|---|
| 0-5 | Low risk | Diet strongly supports long-term health |
| 6-12 | Moderate risk | Some improvements would reduce disease risk |
| 13-19 | High risk | Diet pattern linked to elevated CVD and mortality risk |
| 20-27 | Very high risk | Significant dietary changes strongly recommended |
Score out of 27. Based on the Timmermann (2020) dietary risk framework. Lower scores indicate a more protective eating pattern.
Frequently asked questions
What does a score of 0 mean on the Diet Risk Score?
A score of 0 means you never eat any of the five unhealthy food groups (fast food, refined bread, salty snacks, processed meats or sweet drinks) AND you eat all four protective food groups (nuts, fish, vegetables and fruit) at the optimal frequency - vegetables and fruit every day, nuts and seeds 2-3 times a week, and fish at least 2-3 times a week. In practice very few people score 0, but any score below 6 is considered low risk.
Why do processed meats score 3 points regardless of frequency?
The World Health Organization classifies processed meats (hot dogs, bacon, salami, ham and similar products) as Group 1 carcinogens - meaning there is sufficient evidence that they cause cancer, specifically colorectal cancer. Large epidemiological studies also link any regular processed meat consumption to higher cardiovascular mortality. Because the evidence shows elevated risk even at low consumption levels, the scoring system treats any consumption the same as frequent consumption.
What is the difference between the unhealthy and protective sub-scores?
The unhealthy sub-score (out of 15) captures how often you eat foods that actively raise chronic disease risk. The protective sub-score (out of 12) captures how often you are missing foods that reduce risk. Both contribute to your total: you can have a low unhealthy score but still a high total if you rarely eat vegetables, fruit, fish or nuts. Ideally you want both sub-scores to be as low as possible.
How is the Diet Risk Score different from the DASH or Mediterranean diet score?
DASH and Mediterranean diet scores assess adherence to a specific prescribed diet pattern and typically include a wider set of food groups (whole grains, legumes, dairy, olive oil and others). The Diet Risk Score is a shorter, 9-item screening tool focused on the food groups with the strongest evidence for mortality risk. It is faster to complete and easier to interpret at a glance, but less comprehensive than a full dietary quality index.
Can I use this calculator to track dietary improvements over time?
Yes, this is one of its most practical uses. Score your diet now, make one or two targeted changes - for example, dropping sweet drinks entirely or adding daily vegetables - and then rescore after 4-6 weeks. A drop of even 3-4 points represents a meaningful improvement in dietary pattern. Because the tool is short and the inputs are simple, it is easy to repeat monthly or quarterly.
Does a low Diet Risk Score mean I am eating healthily overall?
A low score is a good sign, but the tool covers only nine food groups. It does not score whole grains, legumes, dairy, unprocessed red meat, olive oil, coffee, alcohol or many other foods that affect health. A person could score 0 here but still eat too few calories, too little protein or have other nutritional gaps. For a complete picture, use this alongside a full diet recall or a consultation with a registered dietitian.