Yaneidi Guzman has lost a third of her weight over the past three years as Venezuela's economic collapse made food unaffordable and she now hopes the opposition will succeed in bringing urgently needed foreign aid to the South American country. Guzman's clothes hang limply off her gaunt frame. The 38-year-old is one of many Venezuelans suffering from malnutrition as the once-prosperous, oil-rich OPEC nation has seen its economy halve in size over the last five years under President Nicolas Maduro. Venezuelans' diets have become ever more deficient in vitamins and protein, as currency controls restrict food imports and salaries fail to keep apace with inflation that is now above 2 million percent annually. REUTERS/Carlos Garcia Rawlins SEARCH "RAWLINS GUZMAN" FOR THIS STORY. SEARCH "WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY. Matching text: VENEZUELA-POLITICS/MALNUTRITION TPX IMAGES OF THE DAY 

The fuel gauge of a car is lit, indicating that the fuel tank is almost empty, in Ciudad Juarez, Mexico October 4, 2017. Picture taken October 4, 2017. REUTERS/Jose Luis Gonzalez 

A oil pump is seen at sunset outside Scheibenhard, near Strasbourg, France, October 6, 2017 . REUTERS/Christian Hartmann 

A man rides a bicycle as he passes tanks of gasoline in Kasserine, Tunisia January 30, 2016. A litre of fuel is priced at 1.5 Tunisian dinars ($0.74). A dramatic drop in oil prices, driven down by a glut in supply, is translating into a mixed bag for motorists. All countries have access to the same oil prices on international markets, but retail prices vary wildly, largely because of taxes and subsidies. REUTERS/Zohra Bensemra SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

A sign showing the price of unleaded petrol at 101.9 pence ($1.46) a litre is seen in a raindrop on a car window at a Texaco gas station in central London, Britain January 26, 2016. A dramatic drop in oil prices, driven down by a glut in supply, is translating into a mixed bag for motorists. All countries have access to the same oil prices on international markets, but retail prices vary wildly, largely because of taxes and subsidies. Picture rotated 180 degrees. REUTERS/Stefan Wermuth SEARCH "THE WIDER IMAGE" FOR ALL STORIES. TPX IMAGES OF THE DAY 

BP gas station signage is seen as a passenger plane makes its final landing approach to Heathrow Airport in west London, Britain January 30, 2016. Unleaded petrol is priced at 101.9 pence ($1.44) per litre. A dramatic drop in oil prices, driven down by a glut in supply, is translating into a mixed bag for motorists. All countries have access to the same oil prices on international markets, but retail prices vary wildly, largely because of taxes and subsidies. REUTERS/Toby Melville SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

A dramatic drop in oil prices, driven down by a glut in supply, is translating into a mixed bag for motorists. All countries have access to the same oil prices on international markets, but retail prices vary wildly, largely because of taxes and subsidies. SEARCH "THE WIDER IMAGE" FOR ALL STORIES TPX IMAGES OF THE DAY 

Nepalese youths holding placards take part in a movement demanding the government to act against the ongoing fuel and cooking gas shortages in Kathmandu, Nepal, November 10, 2015. The middle hills and the capital Kathmandu have suffered fuel and cooking gas shortages after protesters in the south switched to blocking supplies from India, Nepal's largest trading partner, almost two months ago. REUTERS/Navesh Chitrakar 

Nepalese youths holding placards take part in a movement demanding the government to act against the ongoing fuel and cooking gas shortages in Kathmandu, Nepal, November 10, 2015. The middle hills and the capital Kathmandu have suffered fuel and cooking gas shortages after protesters in the south switched to blocking supplies from India, Nepal's largest trading partner, almost two months ago. REUTERS/Navesh Chitrakar 

Nepalese youths holding placards take part in the movement demanding the government to act against the ongoing fuel and cooking gas shortages in Kathmandu, Nepal, November 10, 2015. The middle hills and the capital Kathmandu have suffered fuel and cooking gas shortages after protesters in the south switched to blocking supplies from India, Nepal's largest trading partner, almost two months ago. REUTERS/Navesh Chitrakar 

People ride atop a car on a road linking Yemen's capital Sanaa with the northwestern city of Amran July 27, 2015. Fuel shortages in Yemen have caused hikes in taxi fees, forcing many to ride on overcrowded vehicles. REUTERS/Khaled Abdullah 

People ride on the back of a truck on a road linking Yemen's capital Sanaa with the northwestern city of Amran July 27, 2015. Fuel shortages in Yemen have caused hikes in taxi fees, forcing many to ride in overcrowded vehicles. REUTERS/Khaled Abdullah TPX IMAGES OF THE DAY 

India's Oil Minister Dharmendra Pradhan speaks during an interview with Reuters in New Delhi, India, June 12, 2015. India is trying to use its position as one of the world's biggest energy consumers to strike better bargains for its companies with oil exporting nations, in a marked change of approach under Prime Minister Narendra Modi. The oil ministry is moving beyond seeking additional barrels for import in talks with exporters. Now, the energy-deficient country wants to use its thirst for oil as a weapon to broker deals to help strengthen its economy and create jobs, Oil Minister Pradhan told Reuters in an interview. REUTERS/Anindito Mukherjee

India's Oil Minister Dharmendra Pradhan gestures as he sits in his office after an interview with Reuters in New Delhi, India, June 12, 2015. India is trying to use its position as one of the world's biggest energy consumers to strike better bargains for its companies with oil exporting nations, in a marked change of approach under Prime Minister Narendra Modi. The oil ministry is moving beyond seeking additional barrels for import in talks with exporters. Now, the energy-deficient country wants to use its thirst for oil as a weapon to broker deals to help strengthen its economy and create jobs, Oil Minister Pradhan told Reuters in an interview. REUTERS/Anindito Mukherjee

A man pushes his rickshaw to get fuel at a fuel station in Rawalpindi January 19, 2015. Pakistan's government facing public anger over severe petrol shortages, promised on Monday the crisis that has led to long queues outside petrol stations would be solved within a week. Already frustrated by crippling electricity and gas shortages, Pakistanis have accused the government of not acting fast enough to preempt a decrease in domestic fuel supplies at a time of falling global oil prices. REUTERS/Faisal Mahmood. (PAKISTAN - Tags: POLITICS TRANSPORT ENERGY BUSINESS COMMODITIES) 

A car fuel display is seen in Rome January 6, 2015. U.S. and European stocks rose on Tuesday, rebounding from heavy losses tied to anxiety about tumbling oil prices and Greece possibly leaving the euro zone, while nervous investors bought more gold, yen, low-risk government bonds and other safe-haven assets. REUTERS/Max Rossi (ITALY - Tags: BUSINESS POLITICS TRANSPORT ENERGY) 

Fuel prices are seen on a petrol station pump in Rome January 6, 2015. U.S. and European stocks rose on Tuesday, rebounding from heavy losses tied to anxiety about tumbling oil prices and Greece possibly leaving the euro zone, while nervous investors bought more gold, yen, low-risk government bonds and other safe-haven assets. REUTERS/Max Rossi (ITALY - Tags: BUSINESS TRANSPORT ENERGY) 

Drivers wait alongside their vehicles in long queues at a gas station during a fuel shortage in the country, in Alexandria June 24, 2013. REUTERS/Asmaa Waguih (EGYPT - Tags: BUSINESS ENERGY TRANSPORT) 

A boy pours water to cool the pipelines at a makeshift oil refinery site, in Aleppo's countryside April 2, 2013. Residents are refining crude oil, to extract gasoline and kerosene due to supply shortages. REUTERS/Giath Taha (SYRIA - Tags: POLITICS CIVIL UNREST ENERGY) 

A man working at a makeshift oil refinery site, pours oil into an improvised burner in Aleppo's countryside April 2, 2013. Residents are refining crude oil, to extract gasoline and kerosene due to supply shortages. REUTERS/Giath Taha (SYRIA - Tags: POLITICS CIVIL UNREST ENERGY) 

Jordanian riot police clash with protesters who tried to bypass a designated demonstration area after Friday prayers in Amman November 16, 2012. Protesters from the Islamic Action Front and other opposition parties demonstrated following an announcement that Jordan would raise fuel prices, including a hike on cooking gas. REUTERS/Muhammad Hamed (JORDAN - Tags: CIVIL UNREST POLITICS ENERGY) 

A vehicle drives past workers near power plant number 10 at Saudi Electricity Company's Central Operation Area, south of Riyadh, April 27, 2012. Saudi Arabia is likely to burn less crude in its power plants this summer thanks to rising output from dedicated gas fields and gas that would be associated with any increase in oil output to make up for lower Iranian production. Picture taken April 27, 2012. To match Analysis SAUDI-CRUDE/GAS REUTERS/Fahad Shadeed (SAUDI ARABIA - Tags: ENERGY BUSINESS) 

A woman pumps mustard oil in the right ear of a two-year old girl, who according to her mother is suffering from Mithua or Protein-Energy Malnutrition (PEM), along a roadside in Kaudihar town in the northern Indian state of Uttar Pradesh April 8, 2012. The woman claims she possesses divine powers, tries to cure PEM by pouring mustard oil in ears and pumps them with an aluminuim rod using her mouth. PEM is due to a deficiency of proteins, carbohydrates and fats in the diet. REUTERS/Jitendra Prakash (INDIA - Tags: SOCIETY HEALTH) 

A woman pumps mustard oil in the right ear of a two-year old girl, who according to her mother is suffering from Mithua or Protein-Energy Malnutrition (PEM), along a roadside in Kaudihar town in the northern Indian state of Uttar Pradesh April 8, 2012. The woman claims she possesses divine powers, tries to cure PEM by pouring mustard oil in ears and pumps them with an aluminuim rod using her mouth. PEM is due to a deficiency of proteins, carbohydrates and fats in the diet. REUTERS/Jitendra Prakash (INDIA - Tags: SOCIETY HEALTH) 

A woman pours mustard oil in the right ear of a two-year old girl, who according to her mother is suffering from Mithua or Protein-Energy Malnutrition (PEM), along a roadside in Kaudihar town in the northern Indian state of Uttar Pradesh April 8, 2012. The woman claims she possesses divine powers, tries to cure PEM by pouring mustard oil in ears and pumps them with an aluminuim rod using her mouth. PEM is due to a deficiency of proteins, carbohydrates and fats in the diet. REUTERS/Jitendra Prakash (INDIA - Tags: HEALTH SOCIETY) 

A 10-month old baby girl, who according to her mother is suffering from Mithua or Protein-Energy Malnutrition (PEM), cries after a woman pours mustard oil in her left ear along a roadside in Kaudihar town, in the northern Indian state of Uttar Pradesh, April 8, 2012. The woman who claims she possesses divine powers tried to cure the disease by pouring mustard oil in the ear and pumping it with an aluminium rod using her mouth. PEM is caused due to deficiency of proteins, carbohydrates and fats in the diet. REUTERS/Jitendra Prakash (INDIA)
- Tags: SOCIETY HEALTH) 

An attendant prepares to refuel a car at a petrol station in Rome January 4, 2012. Italians were hit with an increase in petrol prices last month, a first tangible sign of Prime Minister Mario Monti's 30-billion euro ($40.1 billion) austerity package. REUTERS/Max Rossi (ITALY - Tags: BUSINESS) 

A man claps as he sits on empty gas cylinders as he arrives at a rally to protest against the shortage of liquefied petroleum gas (LPG) including petrol and diesel in Kathmandu January 4, 2012. Major petroleum products, including petrol, diesel and liquefied petroleum gas (LPG), has been on short supply over the last week in Nepal mainly after the Nepal Oil Corporation (NOC) tightened supply amid low imports according to the local media. REUTERS/Navesh Chitrakar (NEPAL - Tags: CIVIL UNREST ENERGY BUSINESS) 

A worker collects crude oil sample at an oil well operated by Venezuela's state oil company PDVSA in Morichal July 28, 2011. PDVSA will invest $18 billion this year with $2 billion of that earmarked for new output from the OPEC nation's vast Orinoco heavy crude fields, officials said on Thursday. REUTERS/Carlos Garcia Rawlins (VENEZUELA - Tags: ENERGY POLITICS BUSINESS) 

A man waits to get oil in Ajdabiyah March 30, 2011. REUTERS/Youssef Boudlal (LIBYA - Tags: POLITICS CIVIL UNREST CONFLICT) 

LIBYA/OIL - **COLOUR GRAPHIC ONLY** Map of the world showing sites of proven oil reserves, trade routes and transit choke points. RNGS. (SIN04) 

A man poses with a gasoline pump at a Budapest petrol station January 19, 2011. Gasoline prices just hit a new record high in the central European country. REUTERS/Bernadett Szabo (HUNGARY - Tags: TRANSPORT ENERGY BUSINESS) 

A worker holds a fuel nozzle at a petrol pump in Mumbai June 11, 2010. India's oil ministry wants free pricing of petrol and diesel to help state firms who are forced to sell fuel at low, state-set prices. India's cabinet did not discuss any proposal to raise fuel prices or reform the sector on Thursday, a government minister said, continuing the uncertainty over a move that faces strong political resistance.REUTERS/Danish Siddiqui (INDIA - Tags: ENERGY) 

Gasoline drips from a pump at a petrol station in Sanaa February 1, 2010. Yemen, trying to reduce subsidies, increased fuel prices up to 14.3 percent on Sunday, pumping station owners said. REUTERS/Khaled Abdullah (YEMEN - Tags: ENERGY SOCIETY) 

Students hold oil lamps beside a symbol of AIDS to mark the World AIDS Day in the southern Indian city of Chennai December 1, 2009. REUTERS/Babu (INDIA HEALTH SOCIETY IMAGES OF THE DAY) 

A view of empty gas pumps covered by bags in Charlotte, North Carolina, September 29, 2008. REUTERS/Chris Keane (UNITED STATES) 

An empty gas pump is shown in Charlotte, North Carolina September 29, 2008. REUTERS/Chris Keane (UNITED STATES) 

An empty pump is seen at a Shell fuel station due to gasoline shortages in the state in Stone Mountain, Georgia, September 29, 2008. REUTERS/Tami Chappell (UNITED STATES) 

Paraguay's President Fernando Lugo (R) talks to his Venezuelan counterpart Hugo Chavez as they attend Children's Day celebrations at the Mburuvicha Roga presidential residence in Asuncion August 16, 2008. Oil-producing Venezuela promised to provide fuel-deficient Paraguay with all the oil it needs, Chavez said on Saturday. Chavez, who has used his country's oil wealth to spread his influence in Latin America, was visiting San Pedro in the poorest area of Paraguay to sign agreements with president Lugo, who took office on Friday. REUTERS/Enrique Marcarian (PARAGUAY) 

Paraguay's President Fernando Lugo stands with a group of children during Children's Day at the Mburuvicha Roga presidential residence in Asuncion August 16, 2008. Oil-producing Venezuela promised to provide fuel-deficient Paraguay with all the oil it needs, Venezuelan President Hugo Chavez said on Saturday. Chavez, who has used his country's oil wealth to spread his influence in Latin America, was visiting San Pedro in the poorest area of Paraguay to sign agreements with President Lugo, who took office on Friday. REUTERS/Enrique Marcarian (PARAGUAY) 

Paraguay's President Fernando Lugo stands with a group of children during Children's Day at the Mburuvicha Roga presidential residence in Asuncion August 16, 2008. Oil-producing Venezuela promised to provide fuel-deficient Paraguay with all the oil it needs, Venezuelan President Hugo Chavez said on Saturday. Chavez, who has used his country's oil wealth to spread his influence in Latin America, was visiting San Pedro in the poorest area of Paraguay to sign agreements with President Lugo, who took office on Friday. REUTERS/Enrique Marcarian (PARAGUAY) 

Paraguay's President Fernando Lugo (R) sits next to his Venezuelan counterpart Hugo Chavez as they celebrate Children's Day at the Mburuvicha Roga presidential residence in Asuncion August 16, 2008. Oil-producing Venezuela promised to provide fuel-deficient Paraguay with all the oil it needs, Chavez said on Saturday. Chavez, who has used his country's oil wealth to spread his influence in Latin America, was visiting San Pedro in the poorest area of Paraguay to sign agreements with Lugo, who took office on Friday. REUTERS/Enrique Marcarian (PARAGUAY) 

A Kashmiri worker sits next to a "No Petrol" notice at a fuel station after the blockade of a major highway in Srinagar August 6, 2008. India's Muslim-majority Kashmir valley was running short of food, fuel and medical supplies after Hindu protesters blocked traffic on Tuesday on the main highway during protests that have killed two policemen. REUTERS/Fayaz Kabli (INDIAN-ADMINISTERED KASHMIR) 

An attendant holds a petrol nozzle at a petrol pump in the northeastern Indian city of Siliguri August 5, 2008. The government sharply raised prices of petrol, diesel and cooking gas in early June, a move which pushed inflation into double digits. REUTERS/Rupak De Chowdhuri (INDIA) 

A Thai farmer ploughs his field with his water buffalo at a paddy field in Hinkone village, 450 km northeast of Bangkok, July 19, 2008. Struggling to cope with soaring food and fuel prices, Thai rice farmers are swapping diesel-fuelled tractors for water buffalo, the beasts used for ploughing the paddy fields for centuries. Picture taken July 19, 2008. REUTERS/Sukree Sukplang (THAILAND) 

A worker transfers used vegetable cooking oil, an alternative fuel, into a storage container in Manila's Makati financial district July 30, 2008. The Philippines has been trying to find ways to cut its dependence on imported fuel, which reached record prices this month in the global market. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A worker carries a container of used vegetable cooking oil, an alternative fuel, as a jeepney fills its tank in Manila's Makati financial district July 30, 2008. The Philippines has been trying to find ways to cut its dependence on imported fuel, which reached record prices this month in the global market. REUTERS/Cheryl Ravelo (PHILIPPINES) 

A protestor throws blue paint at the building of Shell Oil company during a protest against another round of oil price increases, in the financial district of Makati city, metro Manila July 14, 2008. Protesters on Monday appealed to President Gloria Macapagal Arroyo's government to scrap the 12 percent value added tax on oil and petroleum products as well as abolish the oil deregulation law. REUTERS/Romeo Ranoco (PHILIPPINES) 

A protester in national costume stands by a horse mockingly pulling a bus as they take part in a protest in Russia's Siberian city of Krasnoyarsk, July 10, 2008. Car owners and drivers gathered to protest against the increase in petrol prices. REUTERS/Ilya Naymushin (RUSSIA) 

Taxi drivers gather for a protest against fuel price increases in Berlin July 8, 2008. Several hundred cars took part in a protest route through the city. REUTERS/Fabrizio Bensch (GERMANY) 

A motorist prepares to put fuel into her car at a petrol station in Melbourne July 3, 2008. Oil jumped about $1 to fresh records on Thursday, as the dollar fell on gloomy U.S. jobs data and a broad equity sell-off, while a higher-than-expected fall in U.S. crude stocks raised supply concerns. REUTERS/Mick Tsikas (AUSTRALIA) 

A motorist prepares to put fuel into her car at a petrol station in Melbourne July 3, 2008. Oil jumped about $1 to fresh records on Thursday, as the dollar fell on gloomy U.S. jobs data and a broad equity sell-off, while a higher-than-expected fall in U.S. crude stocks raised supply concerns. REUTERS/Mick Tsikas (AUSTRALIA) 

A man flashes a victory sign as more than 150 truck and bus drivers take part in a protest against the rising price of fuel in Vilnius July 2, 2008. REUTERS/Ints Kalnins (LITHUANIA) 

A man stands near petrol barrels placed at the entrance of Belgium's Petroleum Federation during a demonstration in central Brussels June 30, 2008. Several hundred people demonstrated against soaring fuel prices. REUTERS/Yves Herman (BELGIUM) 

Truckers in France block traffic in a protest against rising fuel prices on the ring-road around Bordeaux, southwestern France, June 30, 2008. French truckers began blocking roads across France on Monday as they continued a protest against high fuel prices and urged the government to help the industry. REUTERS/Olivier Pon (FRANCE) 

A student protester throws stones outside the parliament building in Jakarta June 24, 2008. Indonesian police used water cannons to disperse about 500 protesters who threw rocks and bamboo sticks at police and broke a parliament building fence on Tuesday to protest against a hike in fuel prices. REUTERS/Dadang Tri (INDONESIA) 

A student protester jumps over burning tyres outside the parliament building in Jakarta June 24, 2008. About 500 protesters threw the rocks and bamboo sticks at police protested against a hike fuel prices on Tuesday. REUTERS/Dadang Tri (INDONESIA) 

Police carry riot shields to disperse student protesters outside the parliament building in Jakarta June 24, 2008. Indonesian police used water cannons to disperse about 500 protesters who threw rocks and bamboo sticks at police and broke a parliament building fence on Tuesday to protest against a hike in fuel prices. REUTERS/Dadang Tri (INDONESIA)