内容摘要：Free sugars occur when fruit is pureed, as is the case with the pouches. Unlike eating fresh fruit - which is much better for a child - pureeing releases sugar from inside fruit cell walls and can be absorbed much more quickly.

Free sugars occur when fruit is pureed, as is the case with the pouches. Unlike eating fresh fruit - which is much better for a child - pureeing releases sugar from inside fruit cell walls and can be absorbed much more quickly.

We visited the tiny Bulgarian mountain village of Shtit, a sleepy place with dirt roads and rusting farm machinery - a place that doesn’t seem to hold much geopolitical significance, but that’s right at the border, which is marked by a 4m high fence and razor wire.“It’s very sharp and it’s almost impossible to climb with bare hands,” says Hamid, the Iranian refugee who crossed it in 2019. “Usually they’re using ladders, but there’s some places [along the fence] that they’ve already cut.”

Our conversation is interrupted by a passing patrol car. Two uniformed officers warn us not to take photographs of the border; presumably, if shared on social media they can help migrants make the crossing.Nikolai, a chef in a local restaurant, tells us he has seen a marked increase in security in the area - many of the guards are from Germany and Poland, and are working in Bulgaria as part of the EU’s border force, Frontex.Certainly, the Bulgarians have made strides in policing their side of the border. In recent years they have installed cameras, drones, and ramped up the number of security staff.

This ring-of-steel-style system has had some success: the number of migrants crossing here has fallen in the last two years, says Atanas Rusev, director of the Security Programme at the Centre for Study of Democracy. But there are gaps.The porousness of the border is apparent about 32km down the road, at the Kapitan Andreevo crossing, uniting Greece, Bulgaria, and Turkey - the busiest such border in Europe. The terrain is mountainous, with parts covered by thick forests making it easy for migrants to go undetected.

“In order to police you need thousands of people on the ground,” Mr Rusev explains. “You cannot put a man every five metres - so you have these patrols that are moving across certain sections of the border. Then you have the fence, but the fence is not a big obstacle because you need a simple wooden ladder.”

The smuggling gangs are clever and “know the terrain very well”, he explains. “If you think that you can stop these irregular flows just with policing and prosecution and securitising, it’s a road to nowhere.”They included about 180 pupils from Oxford's Summer Fields School who completed the 3k (1.8 miles) and Red Watch from the city's Rewley Road fire station who completed the 10k (6.2 miles) in full kit.

The firefighters, who also carried a 50kg casualty training mannequin on a stretcher, raised over £1,100 for Muscular Dystrophy UK and the Fire Fighters Charity., 28, who has limb girdle muscular dystrophy (LGMD) and completed it last year. He completed Sunday's course in about two and a half hours, accompanied by family and friends.

"This is a true community event, and we're delighted that it continues to grow, selling out in advance for a second year running," Jessie Keighley, Muscular Dystrophy UK's events manager, said."The money raised will make a huge difference, helping us to continue funding ground-breaking research and supporting those living with muscle wasting and weakening conditions."