Food prices have already been soaring, and the outbreak of a war between Russia and Ukraine -- which together make up 28% of global wheat exports and 16% of corn, according to UBS Global Wealth Management -- only adds to risks, the same article revealed. ETFs in Focus iShares MSCI Global Gold Miners ETF RING If global growth slows down, the demand for the safe-haven asset gold will likely to go up. Vanguard Consumer Staples ETF VDC The consumer staples sector is known for its non-cyclical nature and acts as a safe haven during unstable market conditions.