SINGAPORE/JAKARTA - Global wheat consumption is headed for its biggest annual decline in decades as record inflation forces consumers and companies to use less and replace the grain with cheaper alternatives, amid growing food insecurity.

Consumers may face even higher wheat prices in the second half of 2022 as importers, who until now have supplied cargoes bought several months earlier at cheaper prices, pass on the costs from when wheat prices scaled decade highs in May.

Global wheat consumption in July-December could drop by 5%-8% from a year ago, analysts, traders and millers say, much faster than the U.S. Department of Agriculture's forecast 1% contraction.

"There is going to be a drop in wheat demand for animal feed in Europe and China. Wheat demand for human consumption has also slowed in key importing countries around the world," said Erin Collier, an economist at UN's Food and Agriculture Organisation.

"High prices have raised food security worries in parts of Asia and Africa where countries are not able to secure enough supplies from the international market."

Millions are facing mounting food costs and insecurity after Russia's invasion of Ukraine and adverse weather in key exporting countries drove cereal prices to all-time highs.

Benchmark wheat futures jumped 40% this year to a record high in March before retreating recently, though physical prices remain high.

Wheat shipments from the Black Sea region are quoted at around $400-$410 a tonne, including cost and freight for delivery to the Middle East and Asia. Prices are down from a peak of about $500 a tonne reached a few months ago, but remain well above last year's average of about $300.

"Wheat supplies are still super tight," said Ole Houe at brokerage IKON Commodities in Sydney. "We are not sure how much wheat is going to come out of the Black Sea and there is adverse weather in other exporting countries."

Countries likely to struggle with wheat imports include Yemen, South Sudan, Sudan, Syria, Ethiopia, Afghanistan and Sri Lanka, FAO's Collier told Reuters.

As rising costs strain household budgets, protests have erupted across the world with people taking to the streets from China and Malaysia to Italy, South Africa and Argentina.

In Indonesia, the world's second-largest wheat buyer, consumption already fell in the first five months of 2022 and a bigger decline is expected as higher costs feed through the supply chain.

Yan Aisa Allamanda, a 37-year-old baker in Jakarta, is paying around 10,000 rupiah ($0.6720) per kilogram for wheat flour, up from around 8,200 rupiah earlier this year.

"I had to increase my selling price...but I fear that higher prices will discourage consumers," she said.

SWITCHING OUT

As consumers cut purchases, bakers and noodle manufacturers are replacing wheat with rice.

"Wheat flour prices are almost at par with rice - automatically there will be shifting," said Franciscus Welirang, chairman of the Indonesian Flour Millers Association.

He noted the last time wheat flour prices rose significantly, Indonesia's consumption dropped by 4.5%.

While wheat prices have jumped, Vietnam's 5% broken rice was quoted around $404 per tonne, largely unchanged from late 2021.

Brazil, the biggest market for U.S. wheat, saw purchases decline more than 3% in January-June period, even though the country paid 20% more for the staple, data showed.

"In the northeast of Brazil, maybe consumers will replace wheat products with regional ones, like tapioca," said Roberto Sandoli, senior risk manager at HedgePoint Global Markets.

ANIMAL FEED

Red-hot wheat prices are also changing ingredients livestock farmers use for animal feed.

The French Farm Office FranceAgriMer forecasts demand for wheat feed is likely to drop 13% to 3.9 million tonnes in 2022/23 from 2021/22.

"The drop in EU wheat consumption is mainly the consequence of very cheap corn," said Helen Duflot, analyst with Strategie Grains. "Then of course, there is the economic issue."

In Vietnam, one of the world's fastest growing animal feed markets, rice is replacing wheat.

One purchasing manager at a mill in Ho Chi Minh City said they have been asked by the government to source alternatives amid supply chain disruption.

Thailand had earlier this year increased its corn import quota to 600,000 tonnes from 54,700 tonnes, and cut import duties to alleviate a tight feed market, Bangkok-based traders said.

In response to changing feed use, the USDA in July cut its global wheat consumption forecast for the 2022/23 marketing year to 784.22 million, down 1.77 million tonnes from its June estimate and 6.29 million tonnes below the prior year.

BLACK SEA HIT

Buyers in Africa and the Middle East have been impacted more than other consumers by Black Sea disruptions since Russia's invasion of Ukraine, and have been forced to switch to higher-priced suppliers such as Germany and France.

There are hopes of a resumption in Black Sea supplies after Russia, Ukraine, Turkey and the UN signed a deal last week to unlock Ukrainian grain. The first grain ship to leave Ukraine safely anchored off Turkey on Tuesday.

But the market remains sceptical about Black Sea trade making a more meaningful return.

"We are not hugely optimistic on Ukrainian wheat supplies," said one trader in Singapore. "It is not in Russia's interest to allow large volumes of grain exports from Ukraine with the ongoing war."

($1 = 14,880.0000 rupiah)

(Reporting by Naveen Thukral in Singapore and Bernadette Christina in Jakarta; additional reporting by Ana Mano in Sao Paulo, Mark Weinraub in Chicago, Gus Trompiz in Paris, Chayut Setboonsarng in Bangkok and Phuong Nguyen in Hanoi; editing by Gavin Maguire and Sam Holmes)