The survey, conducted by the Food Standards Agency (FSA), a government agency tasked with protecting public health in relation to food, found that 8 percent of respondents are facing low or very low food security.
This means that roughly 4 million British adults regularly struggle to eat the sufficient amount of food.
Although the FSA did not elaborate on why some households are more at risk than others, independent studies found a positive link between the suspension of welfare benefits and growing food prices with the rising levels of food insecurity.
This is tacitly confirmed by the FSA survey, which finds a particularly high concentration of food-insecure households amongst the unemployed.
Over a third of all unemployed respondents had reduced their daily food intake or failed to eat altogether because of lack of money. Some 47 percent said they often worry their food supplies will run out before they receive more money.
A number of nutrition experts have called on the government to review the negative impact of austerity measures on the poorest members of society.
Rachel Loopstra, a senior nutrition lecturer at King’s College London, quoted by the Guardian, said: “These robust survey data confirm how serious the scale of the problem of people not having enough money for food to eat is in the UK, and are consistent with reports of increasing food bank usage.