Biocracked
Approach: macro science with a conceptual twist. Palette: bold color field.

Extreme close-up, slightly high three-quarter angle, of a raw salmon fillet's translucent coral flesh, with a glass pipette releasing a single droplet of pale amber peptide solution onto the muscle fibers. Glistening myotome layers and fine white connective lines are sharp in the foreground, with shallow depth of field melting the rest. The salmon sits on a saturated teal backdrop, so the orange-pink flesh contrasts strongly with it. Soft, large-source studio light from upper left gives crisp specular highlights on the droplet and moist fibers, with gentle neutral shadows. A tiny electric green reflection glints inside the droplet. The mood is precise, fresh and curious, like a food-science lab photograph. Photorealistic, with no text.
Peptides

三文鱼肽 vs 乳清蛋白:8 周内铁蛋白提升 13%(14 人试点)

Nova Chen · · 1 min read

什么是三文鱼肽(亦称三文鱼蛋白水解物)?

鱼蛋白水解物是先取鱼类蛋白(本例中为大西洋三文鱼),再用酶把它切割成更小的碎片。这一过程叫酶解,产物包括自由氨基酸、短肽(通常 2‑20 个氨基酸)以及一些较大的片段。

活性肽的概念在于,某些片段除了提供氨基酸外,还可能与受体、酶或基因表达通路相互作用。研究已经在食物来源的肽中发现它们对血压、血糖、抗氧化以及免疫信号有影响。到底哪段肽起什么作用,取决于原始蛋白和使用的酶种,所以一种水解物的效果不能直接类推到另一种。

ProGo® 是挪威 Hofseth BioCare 的专利三文鱼水解物。早期研究提示它可能影响铁代谢、炎症以及代谢健康,而铁蛋白的提升被关联到 FTH1 基因(编码铁蛋白亚基)的上调。该成分还获得了加拿大卫生部关于铁蛋白和血红蛋白的健康声明。

研究概览:每日 12 g 对比乳清,历时 56 天

这项研究发表在《Biomedicines》(2026)上,由 Currie、Myklebust、Bjerknes 与 Framroze 等人完成,是一项 随机、双盲、主动对照的先导试验。受试者为 25‑65 岁的超重成年人,研究在挪威由 Hofseth BioCare 与 Møre og Romsdal 医院信托共同开展。

  • 受试者:14 名超重成人
  • 干预组:每日 12 g ProGo® 三文鱼蛋白水解物
  • 对照组:每日 12 g 乳清蛋白分离物(氮含量相同)
  • 持续时间:56 天(8 周)
  • 主要结局:血液学指标以及综合毛发、指甲、皮肤评分(采用 Holm‑Bonferroni 法校正多重比较)
  • 次要结局:体成分、炎症细胞因子以及血糖代谢

使用乳清蛋白作对照的意义在于,两组摄入的氮(即蛋白质)量相同,任何差异就不太可能单纯归因于“蛋白质更多”。

结果:出现了哪些变化?

血液指标

与乳清组相比,三文鱼组的血红蛋白提升约 4%,红细胞计数提升约 7%,铁蛋白提升约 13%。铁蛋白反映体内储存的铁,而血红蛋白和红细胞计数则体现携氧能力。这些是经过多重比较校正的主要终点,可信度相对最高。

毛发、皮肤与指甲

三文鱼组的综合皮肤/毛发/指甲评分有所提升。此类主观指标需要格外审慎解读,尽管它是预先设定的主要终点。

体成分

次要分析显示体脂率和 BMI 下降,瘦体质量保持不变。保持瘦体质量的同时降低体脂,对老年人防止肌肉流失尤为重要。

炎症与血糖

炎症性细胞因子下降,HbA1c 与空腹血糖也有所降低。乳清组在这些指标上几乎没有变化。

提示:血液和皮肤的结果属于主要终点;体成分、炎症以及血糖属于次要终点,更多是探索性发现。

为何肽可能超越基础营养?

作者认为结果“更符合生物活性而非单纯营养效应”。原因很直接:两组摄入相同氮,但只有三文鱼组的指标出现了显著变化。

可能的机制(仍属推测)包括:

  • 铁代谢:对 FTH1 基因的调控可能改变铁的储存或动员方式。
  • 炎症信号:炎症会提升 hepcidin,使铁吸收与释放受阻。炎症因子下降或许能改善铁的可用性,进而促进红细胞生成。
  • 代谢信号:小肽可能影响肠道激素和胰岛素敏感性通路。

该研究未直接验证这些机制,且三文鱼水解物中可能还含有微量矿物质或其他成分,无法确定究竟是哪段肽发挥了作用。

实用要点

  • 使用剂量:每天 12 g,持续 56 天。这是唯一有数据支撑的剂量,更多并不一定更好。
  • 可能受益的人群:
    • 铁蛋白偏低或接近下限者(本试验未挑选缺铁者,效果是否同样适用于缺铁人群仍未知)。
    • 关注贫血、炎症和肌肉保养的中老年人(研究上限为 65 岁,未覆盖更年长人群)。
    • 吃海鲜的素食者或希望摄入海洋来源蛋白的人。
  • 与胶原肽的区别:胶原肽来源于富含胶原的组织(牛皮、鱼皮、鱼鳞),主要研究方向是皮肤弹性、关节和骨骼。三文鱼肽是整体蛋白水解物,成分和证据侧重点在铁、炎症和代谢上,两者不可互换。
  • 注意事项:对鱼或海鲜过敏者应避免。患有血色沉着症(铁超载)、正在使用抗凝药物或管理糖尿病的患者应先咨询医生,因为铁和血糖指标可能受到影响。

研究局限:购买前请先了解这些

  1. 样本极小:仅 14 人分为两组,难以排除偶然性,尤其是次要结局。
  2. 行业赞助:由原料厂商资助,虽不等同于造假,但独立复现仍是关键。
  3. 时长短:八周无法说明长期安全性、效果持久性或对贫血、骨折等临床结局的影响。
  4. 替代指标:铁蛋白、细胞因子和 HbA1c 并不等同于真正的健康改善。
  5. 受试人群局限:仅针对超重成人,不能直接推广到瘦体、老年或缺铁人群。
  6. 主观终点:毛发、皮肤、指甲评分易受偏差影响,即便盲法进行也如此。
  7. 机制未证实:所谓“生物活性”仍是推测,缺乏直接的机制实验。

研究作者也把结果描述为“产生假设的”并呼吁更大规模的确认性研究。

结论

三文鱼蛋白水解物在生物活性肽领域是一个有趣的候选品,且采用乳清对照的设计让信号比单纯安慰剂更具说服力。但仅凭 14 名受试者和行业支持,这项试验更像是大规模研究的启动枪,而非已经证明能提升铁蛋白或延缓衰老的可靠依据。若你担心铁或血液健康,请先进行专业实验室检查,并等待更大、独立的临床试验给出答案。

Original study

Read the original research on pubmed.ncbi.nlm.nih.gov →

This article summarizes published research for general information. It is not medical advice.

NC

Written by

Nova Chen

Nova Chen writes for Biocracked: biohacking science, longevity & human performance.

Related Articles

Approach: conceptual metaphor. Palette: bold color field.

A single AA-style cylindrical battery, shown as a real object with a bare metal cap and a plain unlabeled matte sleeve, stands upright on a glossy surface. It is photographed from a low three-quarter angle against a saturated tomato-red seamless backdrop. The battery is half-filled with a translucent amber liquid that visibly rises inside a clear glass cutaway section. A thin ribbon of electric green light (#00e676) wraps around its base like a charging band. Soft large-softbox light comes from the upper left and produces crisp highlights on the metal and a clean, slightly blurred red reflection beneath it. A second, shorter battery sits out of focus behind, nearly drained and empty, to suggest contrast. The mood is energetic, optimistic and precise, with a tactile product-photography look and shallow depth of field.
supplements

NR 与白藜芦醇衍生物(Pterostilbene)联用在人类试验中提升 NAD+ 约 40%–90%

BY NOVA CHEN ·

每日一次服用烟酰胺核糖苷(NR)和白藜芦醇衍生物(Pterostilbene)的组合,是否能提升老年人的 NAD+?在首次针对人群的 NRPT(Basis)试验中,120 名年龄在 60‑80 岁的受试者连续服用八周后发现,推荐剂量可使血液 NAD+ 水平提升约 40%,双倍剂量可提升约 90%,且提升效果在整个研究期间保持稳定,未出现严重不良事件。下面我们一起解析这些数据的意义、剂量要点以及本研究未能解答的问题。

A wide, minimalist editorial still life on a soft, warm-gray linen surface lit by gentle diffused morning window light. At center sit two identical small amber glass supplement bottles, one slightly in front of the other, with plain matte cream labels and no readable text. In front of them, two matching shallow ceramic dishes in muted sage green hold identical small ivory capsules. The capsules are nearly indistinguishable, which quietly suggests placebo versus active. Beside the dishes, a few wheat germ grains, a small cluster of aged cheddar-toned cheese shards, and a halved ripe mushroom hint at natural spermidine food sources. They are arranged with careful negative space.

On the left, a delicate balance scale in brushed brass sits perfectly level, its two small pans empty and even, as a subtle visual metaphor for "no difference." On the right, a neat open notebook with soft blurred pencil lines and a single sprig of dried eucalyptus lies beside a pair of thin round tortoiseshell reading glasses, suggesting older adults and memory without showing any people.

The background is a softly blurred pale oat-colored wall with a long gentle shadow cast diagonally across the scene from a window. The color palette is muted and modern: warm cream, sage green, amber, soft brass, and dusty terracotta accents. Shallow depth of field keeps the bottles and scale crisp while the edges melt into a creamy blur. The mood is calm, thoughtful, and quietly skeptical, like a trendy health and science journal feature. Fine film grain, a subtle matte finish, and a balanced asymmetrical composition leave open space in the upper right for headline overlay. Photographed from a slightly elevated three-quarter angle, high-end editorial photography style.
supplements

精胺能提升记忆吗?对 100 名老年人的 12 个月试验未显示优于安慰剂

BY DR. SYNAPSE ·

精胺因自噬研究和动物实验被吹捧为大脑保护补剂。SmartAge 试验在 100 名主观认知下降的老年人中进行,每日约 0.9 毫克,持续 12 个月。主要记忆指标未能胜过安慰剂(差值 -0.03;P = .47),次要指标同样未见效。探索性分析提示炎症和言语记忆可能受益,但尚未得到确认。以下是该结果对考虑使用精胺补剂者的意义以及研究局限性的分析。

A bright, minimalist editorial still life on a pale warm-white stone surface, shot from a slightly elevated three-quarter angle in soft natural window light. At center, a small amber glass supplement bottle with a matte cream label, unbranded, sits beside a few loose white capsules. A pair of weathered hands in a light oatmeal linen sleeve, belonging to an older adult, rests gently near the bottle, with a ceramic mug of tea just out of focus. To the right, a clean glass vial and a delicate glass beaker filled with clear liquid catch the light, hinting at laboratory research without any futuristic touch. A small paper notebook with a handwritten simple line graph rising in a gentle curve lies open nearby, along with a sharpened pencil. Scattered at the edges are soft sprigs of dried eucalyptus and a few pale sage-green leaves, adding an organic note. A faint, abstract molecular diagram printed in muted teal ink on a card leans against the bottle, subtle and graphic. The palette is calm and modern: warm ivory, sage green, soft teal, muted amber, and touches of dusty peach. Long, gentle shadows fall across the surface, and the shallow depth of field blurs the background into creamy neutral tones. The composition leaves generous negative space on the left third for headline text. The overall feel is a trendy health and science journal: clean, airy, trustworthy, and quietly sophisticated, with fine film-like grain and true-to-life color. Ultra-detailed, 16:9 landscape.
supplements

每日摄入 1,000 毫克烟酰胺核苷可提升老年人血细胞 NAD+约 60%——随机对照试验发现

BY DR. SYNAPSE ·

2018 年《自然·通讯》进行的一项交叉试验让健康的中老年人每天服用 500 毫克烟酰胺核苷两次(共 1,000 毫克)为期六周。结果显示,补剂耐受良好,使血液免疫细胞中的 NAD+ 水平比安慰剂高出约 60%。研究者还观察到血压和动脉僵硬度的轻微下降趋势,但将其视为后续大规模研究的线索,而非已证实的益处。本文将解释 NAD+ 为何随年龄下降、该研究的设计以及它无法说明的疾病或寿命方面的结论。

A wide, softly lit editorial still life on a pale travertine surface. In the center-left, a halved ruby-red pomegranate sits open, its glossy arils spilling in a loose cluster onto the stone. Beside it are a few cracked walnut halves and a small matte ceramic dish holding a pinch of fine cream-colored powder. A single aril catches a bright highlight near the foreground. In the soft-focus background, a sheer linen curtain filters warm morning sunlight, which casts long, gentle shadows across the scene.

On the right side, an elegant older woman's hand, seen only from the wrist down, rests lightly on the surface next to a minimalist glass of water. Her skin shows natural texture and warmth. A slim sprig of dried olive branch and a folded sage-green napkin add quiet, organic accents.

The palette is restrained and modern: deep garnet red, warm walnut brown, oat beige, soft sage, and creamy off-white. The composition leaves generous negative space on the upper right for title text. The depth of field is shallow, with crisp focus on the pomegranate and a creamy bokeh falloff. The lighting is natural, diffused, and slightly golden, in the style of a high-end wellness magazine or a contemporary science and nutrition journal. The mood is calm, clean, and quietly authoritative. The finish is photographic, with fine grain, subtle matte tones, and a premium editorial feel.
supplements

Urolithin A:石榴后生元在老年人中激活线粒体自噬特征

BY DR. SYNAPSE ·

Urolithin A 是一种由肠道细菌将石榴、核桃等食物中的鞣酸酯转化后产生的代谢物,长期以来被发现能够提升老龄动物的肌肉活力。首次在老年人中的临床试验显示,每日 500‑1000 毫克的剂量安全可耐受、能够被吸收,并能改变与线粒体功能相关的生物标志物。该研究由开发 Mitopure 的公司资助,结果显示肌肉中的分子特征提示线粒体健康得到改善。但研究规模小、周期短,仅测量了生物标志物而非实际的力量或寿命。以下将介绍研究数据、适用人群以及证据的局限。

This page is available in