Dr. Gymbro
Fitness General Nutrition Recovery Science & Research Trending: supplements sports nutrition creatine pre workout recovery
A clean, editorial still life shot from a slightly elevated angle on a pale oatmeal-colored stone countertop, lit by soft natural window light from the left that casts long, gentle shadows. In the center sits an open, unlabeled amber glass supplement bottle on its side, with a small scatter of cream and white capsules spilling toward the viewer. Beside it, a matte ceramic dish holds a few capsules and a pinch of coarse sea salt. To the right, a neatly arranged group of whole foods that are natural zinc and magnesium sources: halved oysters on a small slate board, a small bowl of pumpkin seeds, a handful of raw cashews, and a few dark green spinach leaves. In the left foreground, a worn leather gym notebook lies open with minimal handwritten tally marks and a simple hand-drawn flat line graph in dark ink, with a brass pen resting across it. A single chrome dumbbell handle edges into the frame at the far left, softly out of focus, and a folded charcoal gym towel sits at the top right corner. The palette is warm and muted: sand, cream, sage green, amber, and charcoal, with a subtle terracotta accent in the ceramic dish. The depth of field is shallow, with the capsules and bottle in crisp focus and the background gently blurred into a soft beige haze. The mood is calm, thoughtful, and skeptical, like a modern health and science magazine feature. The composition leaves generous negative space on the upper right for headline text. The texture is tactile and fine-grained, with a subtle film-like softness and natural contrast. Wide landscape 16:9 framing.
Science & Research

ZMA真的能提升睾酮吗？八周训练实验未见效果

Dr. Gymbro · · 1 min read
#testosterone #supplements #resistance training #sports nutrition #magnesium #zma #zinc

ZMA真的能提升睾酮吗？八周训练实验未见效果

ZMA 在营养补剂货架上拥有相当丰富的背景故事。它是一种睡前混合补剂，主要成分是锌、镁和维生素 B6。2000 年代初，ZMA 因大胆宣称能够提升睾酮和力量而走红，又因为其创始人 Victor Conte 与臭名昭著的 BALCO 事件有关联而被进一步推波助澜。早期的一项针对美式足球运动员的研究报告了惊人的增益，进一步点燃了市场热情。随后，一项针对阻力训练男性、控制更为严格的试验出现，结果几乎是“一无所获”。

这项由 Wilborn 等人完成的试验发表于 2004 年的 Journal of the International Society of Sports Nutrition，至今仍是希望只靠每晚一颗胶囊就能改变激素或肌肉增长的人的重要现实检验。

ZMA到底是什么

ZMA 是 zinc‑magnesium‑aspartate（锌镁天门冬氨酸）的缩写。它是一种商业配方，建议在睡前 30–60 分钟服用。其营销诉求很直接：锌和镁参与数百种酶反应，而高强度训练的运动员可能因出汗或饮食不均而出现缺失。理论上，夜间补足这两种矿物质可以帮助恢复，并营造有利于肌肉生长的激素环境，尤其是睾酮。

营销宣传依托的是早期在美国橄榄球运动员中的一项研究。当时的报告称，训练期间使用 ZMA 的运动员睾酮水平更高，力量提升更大。这一结果被大量补剂广告引用，但单一早期研究、特定人群的发现并不等同于可复制的结论。Wilborn 的试验正是为更直接检验这一说法而设计的。

研究设计细节

研究者招募了 42 名有阻力训练经验的男性。平均年龄 27 岁，身高约 178 cm，体重 85 kg，体脂约 18.6%。受试者首先按无脂体质量匹配，然后在双盲条件下随机分配到 ZMA 组或葡萄糖安慰剂组，睡前服用。两组在八周内遵循相同的标准化阻力训练计划。

测试分别在基线、第 4 周和第 8 周进行，项目包括：

  • 体成分：双能 X 线吸收法（DXA）
  • 力量：卧推与腿推的单次最大重量（1RM）
  • 肌肉耐力：上下肢的重复次数
  • 无氧功率：Wingate 骑车测试
  • 血液指标：血清锌、镁水平，合成代谢与分解代谢激素，以及一般健康标志物

数据采用重复测量方差分析（repeated‑measures ANOVA）处理，适用于比较随时间的组间变化。

结果：各项指标皆未见优势

唯一稍微倾向 ZMA 的指标是血清锌——ZMA 组上升了约 11%‑17%，但差异未达统计学显著（p = 0.12），连最基本的预期效应都不够明确。

随后所有下游指标均呈平坦状态。作者报告在以下方面均无显著组间差异：

  • 合成代谢或分解代谢激素（包括睾酮）
  • 体成分（瘦体重、体脂）
  • 卧推和腿推的 1RM
  • 上肢和下肢的肌肉耐力
  • 自行车无氧能力

作者得出结论：在阻力训练人群中，训练期间补充 ZMA 并未显著提升训练适应性。两组都因训练本身有所进步，但 ZMA 并未在此基础上带来可测量的额外收益。

缺乏的情境（背景说明，并非研究发现）

把这项研究解读为“锌和镁根本不重要”是错误的。试验并未评估 缺乏状态，而是检验在已经摄入足量的训练男性中额外补 ZMA 是否能提升表现，答案是否定的。

从营养学角度看，真正缺乏锌或镁的人可能处于完全不同的情形。纠正真实缺口对健康有意义，且低锌水平常被关联到激素功能。本研究并未证明 ZMA 对缺乏者有帮助，也未设计相应的缺乏者亚组。合理的解读是：对已经足量摄入的营养素进行额外补充，几乎不可能成为表现的刺激剂。如果你因为严格节食、大量出汗或饮食单一而怀疑自己缺乏，第一步应审视饮食并考虑进行实验室检测。

需要牢记的局限性

  • 受试者仅为 42 名已有阻力训练经验的男性，实验持续 8 周。结果不一定适用于女性、老年人、初学者或长期热量赤字中的人群。
  • 只测试了一款商业化产品。
  • 虽然研究采用了双盲、安慰剂对照设计，并使用 DXA、Wingate 等客观测量手段，但仍是单一实验室的单一次实验，复制性仍需进一步验证。

实践要点

  • 不要把 ZMA 当作睾酮提升剂购买。本试验中它未改变睾酮或其他合成/分解代谢激素水平。
  • 别指望力量或体型会因此增长。1RM、耐力、无氧功率和瘦体重相对安慰剂均无差异。
  • 把钱花在基础上。系统的递进训练、足够的蛋白质和热量、以及规律的睡眠才有更可靠的证据支持。
  • 先从食物获取矿物质。肉类、贝类、豆类、坚果、种子、全谷物和绿叶蔬菜都是锌、镁的优质来源。若怀疑缺乏，建议先做饮食评估或实验室检测，而不是盲目补剂。
  • 对早期、夸张的结果保持警惕。单一正面研究（尤其是被用于营销的）需要被复制后才能值得信赖。

来源

Wilborn et al. (2004). Effects of Zinc Magnesium Aspartate (ZMA) Supplementation on Training Adaptations and Markers of Anabolism and Catabolism. Journal of the International Society of Sports Nutrition. DOI: 10.1186/1550-2783-1-2-12 | PubMed: 18500945

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.

Share XFacebookLinkedInRedditWhatsApp
DG

Written by

Dr. Gymbro

Dr. Gymbro writes for Dr. Gymbro: science-backed fitness, nutrition & performance.

Related Articles

A bright, minimalist editorial still life shot from a slightly elevated three-quarter angle on a pale oat-colored stone countertop, bathed in soft natural window light with gentle long shadows. In the center sit two matching matte white supplement scoops, side by side. One is heaped with fine white crystalline powder, the other holds an almost identical pile, so the viewer is invited to compare them. Beside them are two simple frosted glass tumblers of cloudy water, each with a small whisper of powder swirling at the bottom. A third glass of clear water sits slightly apart, as a quiet nod to the placebo. Scattered around the scene are fresh, sliced watermelon wedges with vivid coral-pink flesh and pale green rinds, and a few sliced green apples with crisp white interiors, hinting at the natural sources of citrulline and malic acid. A small brushed-brass measuring spoon and a minimalist matte sage-green shaker bottle rest at the edge of the frame. Off to one side, a clean ceramic dish holds a few loose grains of powder, and a slim linen notebook with a pencil lies open to a blank page, suggesting data and study notes without any legible text. The color palette is soft and modern: warm cream, blush coral, sage green, and touches of brass, with a faintly blurred background of a sunlit kitchen or studio with a pale plaster wall. Shallow depth of field keeps the scoops tack sharp while the background melts into a creamy bokeh. The composition leaves generous negative space on the left third of the frame for a title overlay. The overall mood is calm, trustworthy, and trendy, like a contemporary wellness and science journal cover, with crisp detail, subtle film-like grain, and a clean, airy, balanced feel.
science research

瓜氨酸苹果酸盐 vs L-瓜氨酸：苹果酸真的有作用吗？

BY DR. GYMBRO ·

瓜氨酸苹果酸盐和单纯的 L-瓜氨酸，哪一种更值得买？一项针对 43 名受训成年人的随机、双盲、安慰剂对照交叉试验发现，两者在力量、功率、跳跃表现、重复次数以及主观用力感受上均未超越安慰剂，且在柠檬酸含量相同的情况下，苹果酸并未带来额外收益。下面我们来看一下研究测量了哪些指标、使用的剂量是多少，以及有哪些限制因素需要注意。如果你正犹豫该把哪种粉末加入摇杯，这篇文章可以帮你先弄清楚。
A wide editorial still life on a pale, warm-gray stone surface lit by soft morning window light from the left. In the foreground, a rustic ceramic bowl in matte oatmeal glaze holds dried ashwagandha roots, pale tan and gnarled, with a few scattered beside it. A small wooden scoop dusted with fine golden-beige powder rests next to the bowl. Behind them, a few olive-green ashwagandha sprigs with small orange-red berries in papery husks arc across the frame, adding a quiet pop of color. Midground right: a matte black chalk-dusted dumbbell handle and a single brushed-steel weight plate lean casually against a linen-textured backdrop in muted sage. A folded cream cotton towel and a slim notebook with a pencil suggest a training log. The notebook is open to blank, softly lined pages with no legible text. The background fades into a gentle blur of neutral beige and soft terracotta tones, with a hint of a plant shadow cast across the wall in dappled light. Fine dust and powder particles float in the light beams, giving a tactile, organic feel. The composition follows the rule of thirds: botanical elements on the left and center, gym elements on the right, and negative space in the upper right for headline overlay. Shallow depth of field, crisp focus on the roots and powder, creamy bokeh behind. Color palette: sage green, warm sand, terracotta, charcoal black, and a touch of burnt orange. The mood is calm, modern, and trustworthy, like a premium wellness and science magazine. Photographed on a 50mm lens, natural grain, subtle film-like contrast, clean minimalist styling, high-end editorial photography.
nutrition

古老草药在8周增肌试验中胜过安慰剂：提升力量、肌肉体积及睾酮水平

BY DR. GYMBRO ·

一项为期8周、涉及57名男性初学者的随机对照试验显示，每日两次服用300 mg阿育吠陀根提取物，可在卧推力量、手臂和胸围以及血清睾酮水平上显著优于安慰剂，同时还能降低体脂。但该研究样本量小、周期短，仅针对男性新手，需审慎解读。
A wide, editorial-style flat lay photographed from above on a pale warm-gray linen surface in soft natural window light. At the center, a small open amber glass jar tips gently onto its side, spilling a few cream-colored capsules across the fabric. Next to the jar sits a loose arrangement of fresh mushrooms: a cluster of golden-tan reishi with glossy, lacquered caps, a few slender white enoki stems, a halved shiitake showing its pale gills, and a curl of turkey tail with concentric bands of rust, cream, and charcoal. A small wooden scoop holds a pile of fine beige mushroom powder. On the left third of the frame, a matte black sports watch with a minimal face lies beside a folded sage-green running shirt and a pair of lightweight off-white running shoes, hinting at athletic training without showing a person. A slim white notebook with a single pencil rests nearby, open to a blank page with a faint hand-drawn line graph trending upward, in thin graphite strokes. On the right side, a pair of clear glass beakers and a single small petri dish with a soft amber-tinted liquid add a subtle laboratory note, kept calm and organic. A single sprig of dried herbs and a few scattered oat-colored grains add texture. The palette is earthy and refined: oatmeal, soft sage, terracotta, warm amber, and charcoal accents against the muted neutral background. Shadows are soft and diffused, with a gentle highlight on the glass and the glossy reishi cap. The composition leaves generous negative space in the upper right for a headline overlay. Shallow depth of field blurs the edges slightly, while the central mushrooms and capsules stay crisp. The overall feel is modern, clean, and trendy, like a wellness and science magazine cover, with tactile natural textures, minimal styling, and a quiet sense of curiosity and skepticism.
science research

蘑菇胶囊提升 VO2max 14.8%——但其中有个大问题

BY DR. GYMBRO ·

一颗蘑菇胶囊、40 天、VO2max 提升了 14.8%，听起来几乎像是天方夜谭。最新发表在《Antioxidants》上的研究称，50 名年轻男性运动员每天摄入 320 mg 含 β‑葡聚糖的多菌种提取物，最大摄氧量从 46.26 mL/kg/min 上升至 53.12 mL/kg/min。值得注意的是，这项研究没有安慰剂组、也未采用随机化和双盲设计，受试者在实验期间仍保持常规训练。细胞实验虽在大鼠心肌细胞上展示了低氧相关的作用机制，但仅是单一成分的试验，并未直接对应胶囊的整体效果。下面我们来看看这项研究到底说明了什么、不能说明什么，以及哪些人应当持谨慎态度。
A wide, softly lit editorial still life on a pale warm-gray concrete surface, shot from a slightly elevated three-quarter angle. In the center-left, two matte ceramic scoops sit side by side. One holds fine ivory whey powder, the other holds slightly coarser, pale golden collagen peptide powder. A small, elegant dusting of both powders spills between them and blends into a soft swirl. Behind them, three minimalist cream and sage-green supplement tubs with no legible text stand in a staggered row, with a frosted glass shaker bottle of creamy liquid beside them. On the right, a brushed-steel barbell plate and a compact chalk-dusted kettlebell rest slightly out of focus, suggesting resistance training. Pale wisps of chalk hang in the air. A folded charcoal gym towel and a pair of worn leather lifting straps lie in the foreground. A single cross-section of a clean white bone model, a stylized vertebra, rests on a small oak block at the far right. It subtly signals the bone-density theme without looking clinical. Natural window light enters from the left, casting long, gentle shadows and a warm highlight on the powders. The palette is muted and modern: oatmeal, bone white, sage green, soft charcoal, and touches of warm amber. Shallow depth of field keeps the scoops tack-sharp and melts the background into creamy blur. Leave generous negative space in the upper right for headline overlay. The overall feel is a premium health and science journal cover: clean, tactile, minimalist, with fine film-like grain and a calm, editorial mood.
nutrition

乳清＋胶原在举重者中优于单独使用——但有一个陷阱

BY DR. GYMBRO ·

一项为期8周、针对阻力训练男性的随机对照试验显示，混合30克乳清蛋白和10克胶原蛋白的组合在所有测量指标上均优于单独使用乳清、胶原或安慰剂。该组合使受试者的肌肉质量（BIA）增加了2.66 kg，腰椎骨密度显著提升，深蹲、卧推成绩以及骨代谢标志物也都有所改善。单独的胶原仅对骨骼有作用，单独的乳清仅对肌肉有帮助。但由于样本仅40人、蛋白质摄入总量不等以及骨密度异常大幅提升等因素，这项研究仍存在不少局限。

This page is available in

English العربيةবাংলাČeštinaDeutschEspañolفارسیFrançaisHausaहिन्दीHrvatskiBahasa IndonesiaItaliano日本語Basa Jawa한국어NederlandsਪੰਜਾਬੀPolskiPortuguêsRomânăРусскийSrpskiTürkçeУкраїнськаTiếng Việt中文