#randomized controlled trial

2 articles

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.

Whey + kolagen nadmašio oba samostalna suplementa kod dizača — jednim udarcem

BY DR. GYMBRO · 28. lis 2026.

Miješanjem 30 g whey proteina i 10 g kolagena u jednoj grupi postignuti su veći dobitci u mišićnoj masi, gustoći koštane mase lumbalnog dijela i snazi u čučnju i bench pressu, nego kada su se ti suplementi uzimali zasebno ili kada je korišten placebo. Kombinacija je donijela dodatnih 2,66 kg mišićne mase (prema BIA‑analizi), povećala BMD lumbala i poboljšala markerima kostnog metabolizma. Unatoč malom uzorku (40 sudionika) i nekim metodološkim nedostacima, rezultati sugeriraju sinergijski učinak whey‑a i kolagena kod treninga snage.

A bright, airy editorial flat-lay shot from slightly above, on a soft warm-white linen surface with gentle natural window light and long, soft shadows. Two small ceramic dishes sit side by side at the center. The left dish holds a single small capsule in muted terracotta. The right dish holds one small capsule in the same color, with a noticeable empty space beside it to suggest rhythm and spacing. Between them lies a minimalist wooden calendar block or a row of seven small round ceramic discs in alternating tones, dusty rose and cream, evoking an every-other-day pattern. Around the dishes are fresh, iron-rich foods arranged with restraint: a halved blood orange, a few deep green spinach leaves, a small scattering of pumpkin seeds, and a sprig of parsley. A folded sage-green athletic towel and a slim, modern water bottle sit at the upper edge, hinting at women who train. A matte ceramic mug of herbal tea sits at the right with a faint curl of steam. A small notebook with a pen lies open at the lower left, its pages blank, suggesting lab results and tracking without any legible text. The palette is soft and cohesive: warm cream, dusty rose, terracotta, sage green, with small accents of deep coral. The mood is calm, clean, and wellness-oriented, like a contemporary health and science journal feature. Shallow depth of field keeps the capsules sharp and softly blurs the edges of the frame. The composition leaves generous negative space on the left third for title overlay. The look is a high-end lifestyle photograph with subtle film grain, natural textures, and refined minimalism, with no people, no text, and no futuristic or laboratory elements.

nutrition

Manje željeza, svaki drugi dan: isti porast ferritina kod žena

BY DR. GYMBRO · 26. lis 2026.

Hepcidin može smanjiti apsorpciju željeza nakon jedne doze, što bi mogao biti razlog zašto oralno željezo često razočara i izaziva probleme sa želucem. Randomizirano istraživanje iz 2026. na 66 žena s nedostatkom željeza uspoređivalo 21 mg željeza svakih 48 h s 30 mg dnevno tijekom 42 dana. Ferritin je značajno porastao u obje skupine, a razlika među njima nije bila statistički značajna, dok je hemoglobin ostao stabilan, a gastrointestinalni učinci bili blagi. Studija je bila aktivno kontrolirana, ali bez placeba, a korišteni su različiti oblici željeza, pa je rezultat usporediv, a ne superiorniji. Evo što to znači za žene koje treniraju i zašto je potrebno provjeriti ferritin prije suplementacije.

#randomized controlled trial

Whey + kolagen nadmašio oba samostalna suplementa kod dizača — jednim udarcem

Manje željeza, svaki drugi dan: isti porast ferritina kod žena

Whey + kolagen nadmašio oba samostalna suplementa kod dizača — jednim udarcem