A | 专题：精准营养产业大会 精准蛋白营养 赋能全生命周期健康 2026年8月21-23日，第二届精准营养产业大会在黑龙江哈尔滨举行，大会主题为“精准蛋白营养，赋能全生命周期健康”。 WASHINGTON -- Saddled with a dysfunctional Congress, President Joe Biden has the task of assuring European Union leaders on Friday that the United States can nonetheless deliver on promises to send tens of billions of dollars' worth of aid to wartime Ukraine and Israel.The Oval Office sit-down comes at a moment when domestic U.S. political chaos could further destabilize an increasingly chaotic world. Many of Biden's shared priorities with the EU depend on getting a budget through Congress — a tough task given that the House lacks an elected speaker and differences with some Republican lawmakers over aid for Ukraine could force a federal government shutdown in November.Along with addressing Ukraine's efforts to repel Russia and the fallout from Hamas' attack on Israel, the U.S. and EU leaders are also figuring out how to manage climate change, economic competition with China and trade and tax issues. One day ahead of his meeting with Biden, European Council President Charles Michel expressed optimism that Biden can deliver on his promises to help arm and financially support Ukraine.“I’m really confident and also I’m grateful for Joe Biden’s personal leadership,” Michel said. “He will do everything to ensure this support will be confirmed.”The U.S. president has cultivated a personal relationship with Michel and European Commission President Ursula von der Leyen, who calls Biden “dear Joe.” Both the EU and U.S. pride themselves for being devoted to democratic principles, a source of unity as they navigate Russia's war in Ukraine and the war between Israel and Hamas. They have framed their support for Israel as a reflection of shared democratic values and stressed the importance of following international law in military operations.But the reality of democracies is that foreign policy agreements can change with elections and competing interests at home can overshadow diplomacy. The two partners still have differences to reconcile on trade, economic matters and the incentives for shifting to renewable energy sources. The U.S. and EU still need to finalize an agreement on environmentally sustainable steel and aluminum production in order to avoid the tariffs imposed during Donald Trump's presidency.Biden's own incentives on moving away from fossil fuels have left Europe “a little bit uncomfortable,” said Federico Steinberg, a visiting fellow at the Center for Strategic and International Studies, a Washington-based think tank.While the EU welcomes U.S. efforts to “accelerate the green transition,” Steinberg said, some elements of Biden's programs are protectionist in nature, discriminate against trade partners and undermine the World Trade Organization system that the EU would like to revive.But for now, the U.S. and E.U. are focused on the big challenges of war and solidarity in their words and policy choices. Von der Leyen said Thursday that the “core” of the Oval Office conversation will be about Ukraine and Israel.“The winds are not just blowing today — today they are gale force,” she said in remarks at the conservative Hudson Institute. “Our democracies are under sustained and systemic attack by those who abhor freedom.”In addition to sanctioning Russia, EU countries have provided close to $90 billion in assistance to Ukraine, including $27 billion in military aid, von der Leyen said. But there are open questions as to whether the U.S. commitment could waver after having provided four rounds of aid to Ukraine that total $113 billion, a sum that includes replacing U.S. military equipment sent to Kyiv.“Now is the time to double down,” von der Leyen said Thursday.In a separate interview with The Associated Press, Michel said the U.S. and E.U. would still need to make progress on addressing the steel tariffs and defending the interests of European businesses. But Michel said both parties are aligned on Ukraine, and Europe is “doing what’s needed and we are preparing the next decisions to mobilize more and more funding, more military equipment for Ukraine and for the Ukrainians.”Biden is expected to ask for $105 billion in additional funding Friday, including $60 billion for Ukraine, much of which would replenish U.S. weapons stockpiles provided earlier. There’s also $14 billion for Israel, $10 billion for unspecified humanitarian efforts, $14 billion for managing the U.S.-Mexico border and fighting fentanyl trafficking and $7 billion for the Indo-Pacific region, which includes Taiwan. The proposal was described by three people familiar with the details who insisted on anonymity before the official announcement.But some House Republicans have questioned the value of aid to Ukraine at the levels sought by Biden. The GOP ousted Rep. Kevin McCarthy, R-Calif., after a deal to temporarily keep the government open through November 17. Republican lawmakers have failed to find a successor, leading to concerns that Biden's commitments with the EU could be in jeopardy.The U.S. president offered his challenge to Congress in a Thursday evening speech by outlining the core idea behind his spending proposal:"American values are what make us a partner that nations want to work with. We put all that at risk if we walk away from Ukraine, if we turn our backs on Israel."__AP writer Raf Casert contributed to this report from Brussels.。 中国营养学会理事长杨月欣在圆桌讨论中表示，我国居民整体蛋白质摄入总量充足，维持在合理的能量占比区间，但存在动植物蛋白配比失衡、摄入结构不科学的突出问题。 “城市人口普遍肉类摄入偏多，动物蛋白占比过高，需要适度减量，增加豆类等优质植物蛋白摄入；而农村居民恰恰相反，多依赖植物蛋白，亟需补足优质动物蛋白，实现动植物蛋白均衡搭配。”杨月欣强调，蛋白质营养的核心是质量适配，不同区域、不同人群的膳食优化不能一概而论，精准调整蛋白结构、提升蛋白摄入质量，才是改善国民蛋白营养现状的关键。 在科研创新层面，杨月欣指出当前蛋白营养研究存在维度单一、深度不足的短板，明确了未来科研攻坚方向。她表示，过往研究多聚焦总蛋白含量、基础氨基酸组成，忽视了不同来源蛋白的差异化功能，以及蛋白质与脂肪、小分子物质的结合效应，精细化、深层次研究较为匮乏。 “无论是动物蛋白、植物蛋白还是乳源蛋白，不同品类的小分子结构、功能特性、互补机制都值得深挖。”杨月欣说道，行业需深耕蛋白质结构与功能的关联性研究，依托蛋白互补理论、结构功能理论，探索不同蛋白的协同利用、适配补充机制，让基础科研成果更好赋能人体营养吸收与健康养护。
B | 针对全生命周期营养研究短板，杨月欣重点聚焦老年营养领域，提出针对性发展建议。
C | 她表示，长期以来，国内营养学研究重点聚焦婴幼儿生长发育，对婴幼儿必需氨基酸、特殊营养需求的研究体系完善、成果丰富，但针对老年人群的营养研究长期滞后，相关方法学、机制研究、应用落地存在明显空白。 “随着人口老龄化加剧，如何通过精准蛋白营养助力老年人健康长寿、减少慢病发生，是当下营养领域最迫切的研究课题。” 新浪声明：所有会议实录均为现场速记整理，未经演讲者审阅，新浪网登载此文出于传递更多信息之目的，并不意味着赞同其观点或证实其描述。
D | 责任编辑：李思阳。
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