Some key facts:
1. In meat, milk, and eggs, the UK produces a roughly equivalent volume to what it consumes.
2. The UK is largely self-sufficient in production of grains, producing over 100% of domestic consumption of oats and barley and over 90% of wheat.
3. The UK produces a significant proportion of its other crop needs, including around 60% of sugar beet, 70% of potatoes and 80% of oilseeds.
4. The UK produces over 50% of vegetables consumed domestically, but only 16% of fruit.
5. The UK both produces and consumes fish and seafood, but is a net importer overall. UK consumer preference is for fish mainly caught outside UK waters, such as cod, haddock, tuna, and shrimp and prawns. This means that the UK exports much of what it catches and imports much of what it eats.
All extracted from
https://www.gov.uk/government/statistics/united-kingdom-food-security-report-2021/united-kingdom-food-security-report-2021-theme-2-uk-food-supply-sources