UK shares fell on Tuesday, weighed down by concerns about a slowdown in global economic growth and a series of negative brokerage actions, while electrical engineering firm Spectris climbed after announcing unit sale and share buyback.

The blue-chip FTSE 100 edged 0.1% lower, with spirits maker Diageo, Dove soap maker Unilever and personal goods maker Reckitt Benckiser Group down between 1.2% and 3%.

However, gains in commodity stocks limited the losses. Oil majors BP and Shell rose 1.5% and 2.1%, respectively, after JP Morgan raised its price targets on the stocks.

Miners advanced 1.7% as metal prices rose on hopes of more stimulus by China and low inventory-led supply worries.

The domestically focused midcap FTSE 250 index declined 0.4%. SSP Group fell 4.7% to hit the bottom of the index after Deutsche Bank downgraded the Upper Crust owner's stock to "hold" from "buy".

The World Bank on Monday lowered its global growth forecast for 2022 to 3.2% from 4.1%, due to the impacts from Russia's invasion of Ukraine. The International Monetary Fund is expected to cut its outlook later in the day.

"The market is not only reacting to the downgrades that we've seen in terms of growth expectations yesterday, but also thinking that this is probably the first of many downgrades that we're going see to growth and earnings as we go through the remainder of the year," said Michael Brown, head of market intelligence at Caxton.

Among stocks, Spectris gained 4.7% after it announced the selling of specialist sensor maker Omega Engineering to private equity firm Arcline Investment Management for $525 million and a 300 million-pound stock buyback.

ITV fell 2.8% after Berenberg downgraded the broadcaster's stock to "sell" from "hold".

ASOS dipped 2.3% after Jefferies cut its price target on the online fashion retailer's stock, while low-cost carrier Wizz Air dropped 3.3% after Barclays lowered its price target.

(Reporting by Devik Jain in Bengaluru; Editing by Shounak Dasgupta and Subhranshu Sahu)