Healthy Eating on a Tight Budget: What the Cheapest Good Food Costs
- UK food and non-alcoholic drink prices rose 1.3% in the year to August 2026, and the USDA expects US grocery prices to rise 2.5% across 2026.
- The NHS counts 80g of fresh, frozen or tinned fruit and vegetables as one 5 A Day portion, and beans and pulses count once a day.
- At Office for National Statistics average prices for August 2026, an 80g portion of carrots costs about 8p and an 80g portion of frozen mixed vegetables about 18p.
- Two eggs, 150g of tinned beans, a 90g cooked chicken breast and a tin of tuna all supply protein at roughly 38p to 43p per 10g at UK average prices.
- The USDA Thrifty Food Plan priced a week of food at $58.60 for a woman aged 20 to 50 in July 2026.
Most budget-eating advice is a list of tips with no prices attached. This guide does the sums instead, using official price series: the Office for National Statistics (ONS) average shop prices for the UK and Bureau of Labor Statistics (BLS) average prices for the US, both for August 2026.
The conclusion is unglamorous. The cheapest healthy food is the plain food in the middle aisles and the freezer, and none of it has a wellness label on the front.
What is happening to food prices?
Prices are still rising, but slowly. The ONS reported that UK food and non-alcoholic drink prices rose 1.3% in the 12 months to August 2026, the same rate as July. Overall inflation was 3.1%. Vegetables pushed up slightly, while chocolate and meat pulled down.
In the US, the USDA Economic Research Service said grocery prices in July 2026 were 2.7% higher than a year earlier. Its forecast for the whole of 2026 is a 2.5% rise for food bought to eat at home. Beef is forecast to rise 9.8% and eggs to fall 30.8%.
Slow inflation does not make food cheap. It means prices have settled at a higher level than a few years ago. The practical response is the same in both countries: know what the cheap staples cost per portion, and build around them.
What does a healthy diet need to include?
Less than the internet suggests. The NHS Eatwell Guide asks for at least five portions of fruit and vegetables a day, starchy foods as just over a third of what you eat (higher-fibre versions where possible), some beans, pulses, fish, eggs or meat, some dairy or alternatives, and six to eight drinks.
The current Dietary Guidelines for Americans, published in January 2026, use servings instead: three of vegetables and two of fruit a day, and two to four of whole grains. Their protein target of 1.2 to 1.6g per kilogram of body weight is higher than the UK figure.
The British Nutrition Foundation gives the UK reference intake as 0.75g per kilogram, which is 45g a day for an average woman and 55.5g for a man. On fibre, the NHS target is 30g a day, and most UK adults manage about 20g.
Nothing in either set of guidance requires a powder, a bar or a named superfood. If you have a medical condition, are pregnant, or take medicines that affect appetite, your needs may differ, and a GP, doctor or registered dietitian is the right person to ask.
What is the cheapest source of protein?
The table below prices one standard portion of each food. Portion sizes come from the British Dietetic Association, protein per 100g from the British Nutrition Foundation, UK prices from the ONS shopping prices tool and US prices from BLS average price data.
| Food and portion | Protein | UK cost | US cost |
|---|---|---|---|
| Two medium eggs (120g) | About 17g | 66p (free-range, £3.93 a dozen) | 38c ($2.27 a dozen) |
| Baked beans, 150g | About 7.5g | 31p (89p per 425g tin) | No BLS series |
| Tinned beans or chickpeas, 150g drained | About 11g | 42p (67p per 400g tin) | 22c as dried beans ($1.63 per lb) |
| Tinned tuna, one 150g tin | About 25g | £1.07 | No BLS series |
| Chicken breast, 90g cooked | About 29g | £1.09 (£9.10 per kg raw) | $1.10 ($4.17 per lb raw) |
| Cheddar, 30g | About 7.5g | 25p (£8.45 per kg) | Not priced here |
| Whole milk, 200ml glass | About 7g | 16p (£1.84 per 4 pints) | 22c ($4.23 per gallon) |
Three assumptions sit behind those figures. A 400g tin of beans drains to about 240g, a tin of tuna drains to about 100g, and 120g of raw chicken cooks down to 90g. Your tins and your oven will differ a little, so read the numbers as estimates.
Now divide cost by protein. In the UK, eggs come out near 39p per 10g of protein, chicken breast 38p, tinned pulses 39p, baked beans 41p and tuna 43p. Cheddar is about 33p and milk about 24p. The spread between "cheap" and "expensive" staples is far narrower than most budget articles imply.
The real savings are elsewhere. ONS puts beef mince at £10.96 a kilo and a whole chicken at £4.54. In the US, ground beef averaged $6.92 a pound against $2.01 for whole chicken. Swapping half the mince in a chilli or bolognese for a tin of beans cuts the cost and adds fibre in one move.
These are national averages across brands and shops. Supermarket own-brand lines usually sit below them, so treat the table as a ceiling for plain staples, not a floor.
Which fruit and vegetables cost least per portion?
The NHS defines a portion as 80g, which makes the arithmetic easy. At ONS average prices, five portions from the cheaper end of this list come to under 60p a day.
| Item | ONS average price | Per 80g portion |
|---|---|---|
| Carrots | 94p per kg | 8p |
| Onions | £1.15 per kg | 9p |
| Bananas | £1.14 per kg | 9p |
| Tinned tomatoes | 65p per 400g tin | 13p |
| Frozen mixed vegetables | £1.71 per 750g | 18p |
| Apples | £2.25 per kg | 18p |
| Frozen peas | £2.11 per 900g | 19p |
| Broccoli | £2.70 per kg | 22p |
| Fresh tomatoes | £3.73 per kg | 30p |
| Frozen fruit | £3.21 per 500g | 51p |
Two things stand out. Root vegetables and bananas cost a third of what salad vegetables do. And frozen berries, often recommended as a budget buy, are the dearest item here per portion. They are cheaper than fresh berries, which is a different claim.
The BLS publishes far fewer produce series, so there is no matching US table. For American readers, the unit price on the shelf label (price per ounce or pound) does the same job as this table.
Are frozen and tinned foods as good as fresh?
For counting purposes, yes. The NHS 5 A Day guidance says 80g of fresh, canned or frozen fruit and vegetables counts as one portion. Beans and pulses count once a day however many you eat. Potatoes do not count, because they are classed as a starchy food.
On nutrients, a University of California, Davis study measured four vitamins in eight fruits and vegetables, including peas, spinach, broccoli and carrots, kept either refrigerated or frozen. The vitamin content of the frozen produce was comparable to fresh and occasionally higher. Beta-carotene was the exception, falling sharply in some frozen items.
That is one laboratory study of eight foods, so it does not settle every case. It is enough to retire the idea that a bag of frozen peas is a nutritional compromise. For tinned vegetables, beans and fish, choose versions in water or tomato juice over brine where the price is the same, and rinse beans canned in salted water.
What does a low-cost day of food look like?
Here is one adult's day, costed item by item at the same ONS averages. It is a worked example, not a meal plan, and it ignores cooking oil, salt, tea and coffee.
| Meal | What is in it | Cost |
|---|---|---|
| Breakfast | Porridge made with 40g oats and 200ml milk, one banana | 40p |
| Lunch | Two eggs on two slices of wholemeal toast, 80g carrot sticks | 85p |
| Dinner | 75g dried pasta with half a tin of tomatoes, 150g tinned beans, an onion, 80g frozen mixed vegetables and 30g grated Cheddar | £1.42 |
| Snacks | An apple; one slice of wholemeal toast with 30g peanut butter | 49p |
| Total | Six portions of fruit, vegetables and pulses | £3.16 |
That is about £22 a week for one adult at average, not rock-bottom, prices. For a US reference point, the USDA Thrifty Food Plan for July 2026 allowed $58.60 a week for a woman aged 20 to 50, $73.70 for a man, and $236.50 for a family of four.
The day above repeats well. Swap the eggs for tinned fish or a jacket potato with baked beans, and the pasta for rice and lentils or a vegetable omelette, and you have a week without a recipe book.
Which shopping habits save the most?
A short list, in rough order of effect.
- Check the freezer, tins and fridge before you write the list, and plan two dinners around what is already there.
- Pick two breakfasts, three lunches and three dinners, and repeat them for a fortnight. Repetition cuts waste more than variety cuts boredom.
- Compare the unit price on the shelf edge (per 100g or per ounce), not the pack price.
- Buy the supermarket's own-brand version of any single-ingredient food: oats, pasta, rice, tinned tomatoes, frozen peas.
- Freeze bread, and freeze leftovers in single portions on the day you cook them.
For more on using what you have, see our guide to using up a glut in the kitchen.
A sceptical note on "healthy" snack products. ONS prices a 40g cereal or protein bar at 48p on average. The same money buys two eggs, or a banana and a glass of milk with change. A bar is a convenience purchase, and that is fine, but it is rarely the budget option.
Where can you get help with food costs?
If the budget does not stretch to enough food
In England, Wales and Northern Ireland, NHS Healthy Start pays £4.65 a week from the tenth week of pregnancy and for children aged one to four, and £9.30 a week for babies under one, towards milk, fruit, vegetables and infant formula.
Scotland has Best Start Foods. Trussell food banks work by referral: a local agency issues a voucher that is exchanged for a parcel.
In the US, SNAP provides monthly food benefits through your state agency, and WIC covers pregnant and breastfeeding women, babies and children under five. If you are eating less than you need, or losing weight without meaning to, tell a GP or doctor as well.
Using these schemes is what they are for. Eligibility rules change, so check the official page for your nation or state before assuming you do not qualify.
Questions readers ask
Is it cheaper to cook from scratch or buy ready meals?
Usually cheaper to cook, by a wide margin. ONS puts the average 400g meat ready meal at £3.40 in August 2026, which is more than the whole sample day above. A ready meal still beats a takeaway on price: the ONS average for takeaway fish and chips was £11.51. On a tired evening, the ready meal is the budget choice.
Are dried beans cheaper than tinned?
Per portion, yes. At the BLS average of $1.63 a pound, a 150g cooked portion of dried beans costs roughly 22 cents, assuming about 60g dry weight. They need soaking and up to an hour of simmering, which costs time and fuel. Tinned beans at around 42p a portion are a fair trade if that is what gets them eaten.
Do I need more protein than the guidelines say?
The two countries now disagree. The UK reference intake is 0.75g per kilogram of body weight, and the US guidelines published in 2026 suggest 1.2 to 1.6g. Older adults and people eating much less than usual may need advice from a dietitian. For most adults, protein at each meal from ordinary food covers either figure without supplements.
Are eggs still expensive in the US?
Not by the latest figures. The BLS average for a dozen large grade A eggs was $2.27 in August 2026, and the USDA forecasts egg prices to fall 30.8% across 2026. At that price, two eggs cost about 38 cents, which puts them among the cheapest protein per gram of the US items checked here, close to dried beans.
Sources
- Office for National Statistics. Consumer price inflation, UK: August 2026. 16 September 2026; Shopping prices comparison tool, average prices for August 2026.
- USDA Economic Research Service. Food Price Outlook: summary findings. Updated 25 August 2026.
- US Department of Agriculture. USDA Food Plans: monthly cost of food reports, Thrifty Food Plan, July 2026.
- US Bureau of Labor Statistics, via FRED, Federal Reserve Bank of St. Louis. Average price data, US city average, August 2026: eggs; boneless chicken breast; whole chicken; ground beef; dried beans; whole milk.
- NHS. The Eatwell Guide; 5 A Day: what counts? (reviewed 9 June 2026); How to get more fibre into your diet (reviewed 2 March 2026).
- US Departments of Agriculture and Health and Human Services. Dietary Guidelines for Americans, 2025–2030. January 2026.
- British Nutrition Foundation. Protein; British Dietetic Association. Food fact sheet: portion sizes.
- Bouzari A, Holstege D, Barrett DM. Vitamin retention in eight fruits and vegetables: a comparison of refrigerated and frozen storage. Journal of Agricultural and Food Chemistry. 2015.
- Help with food costs: NHS Healthy Start; Best Start Foods (mygov.scot); Trussell: emergency food; USDA SNAP; USDA WIC.
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