Today's Nutrition Pulse

Calcium and Vitamin D Supplements Fail to Cut Fall or Fracture Risk in Seniors, Study Finds
A new meta‑review in The BMJ examined 69 randomized trials involving 153,902 adults aged 65 and older and concluded that calcium, vitamin D, or their combination do not reduce falls or fracture risk. The findings challenge long‑standing recommendations to use these supplements for bone health in older adults.

Supplements Need Better Evidence
The video centers on the growing supplement market and the glaring evidence gap, using the product Rejuvenate as a case study. The host questions the safety of taking multiple supplements without clinical validation, contrasting them with FDA‑regulated drugs. Key points include the sector’s multi‑billion‑dollar size, the absence of randomized trials, and emerging data suggesting that poly‑supplement regimens may actually increase mortality even among health‑conscious individuals. The discussion also highlights the potential for personalized medicine to isolate truly effective compounds, but stresses that current regulatory frameworks offer no oversight of supplement‑drug interactions. Notable remarks from the speaker include, “supplements are great for the economy,” and a warning that “multi‑supplements are probably increasing your chance of mortality.” He cites animal studies from Brian Kennedy’s lab showing health and longevity benefits for Rejuvenate, which sways his personal bias toward the product. The broader implication is a call for rigorous, human‑centric research before consumers adopt supplement stacks. Without such evidence, the market risks inflating demand for products that may be ineffective or harmful, while missing opportunities to develop targeted, evidence‑based nutraceuticals.

Why NAC May Help Ulcerative Colitis
The video explains that ulcerative colitis (UC) patients commonly exhibit depleted mucosal glutathione, the body’s primary intracellular antioxidant, and proposes N‑acetylcysteine (NAC) as a way to restore it. NAC is a direct precursor in the rate‑limiting step of glutathione synthesis, so...

Study Explores Potential of Hydrolyzed Whey Protein After Lactic Acid Modification
A 2026 study published in Food Production, Processing and Nutrition examined hydrolyzed whey protein further modified with lactic acid, termed lactylated hydrolyzed whey protein (WPel). In vitro tests showed a 20% boost in leucine content and faster digestion with reduced...

2g Amplifies Effects of Coffee on Fat Loss
The video explores how a handful of inexpensive compounds can turn a regular cup of coffee into a metabolic accelerator for fat loss, autophagy and sustained energy. By pairing coffee with targeted additives—carnitine, L‑theanine, medium‑chain triglycerides (MCTs), cinnamon and Manuka...

Scott Baptie Explains Nutrition Like You've Never Heard
Scott Baptie, a former gym‑obsessed blogger turned sports‑nutrition graduate, explains his no‑nonsense approach to eating. He frames nutrition as a hierarchy: at the base are nutrient‑dense whole foods, adequate calories, and balanced macronutrients; above that come timing considerations and, finally,...

If You’re Counting on Calcium and Vitamin D Supplements to Prevent Fractures, Think Again
A new meta‑review in The BMJ analyzed 69 randomized trials involving 153,902 adults and found that calcium, vitamin D, or their combination do not reduce falls or fracture risk in people aged 65 and older. The systematic review, led by Canadian...

Active Women Under‑Eat, Undermining Bone Health and Recovery
If you’re a woman who trains regularly, you’re probably under-eating relative to what your body needs. Sports science refers to this as low energy availability. Recent systematic reviews in female dancers show a consistent pattern. When energy intake is too low for...

Head‑to‑Head Trial Compares Omega‑3,
New in the Journal of Translational Medicine: a six-week RCT from Nottingham pitted omega-3, inulin fiber, and a kefir-plus-prebiotic-fiber synbiotic against each other. (1/4)

Probiotic-Fermented Yogurt Improves Glucose Control, Gut Microbiota: Meiji Study
Meiji Co., Ltd. completed an 84‑day single‑arm trial in 303 Japanese adults, having participants consume 200 g of probiotic‑fermented yogurt each morning. Continuous glucose monitoring showed mean blood glucose fell by 4.06 mg/dL, with significant reductions in variability and waveform smoothness. 16S...

Reimagining Neonatal Nutrition: Innovations to Optimize Early Life Outcomes
Speakers reviewed evidence that early enteral feeding with mother’s own milk is critical for intestinal development in very preterm infants, warning that prolonged NPO produces mucosal atrophy, inflammation and dysbiosis within days. They highlighted bioactive milk components—lactoferrin and diverse human...

25 Years of Fitness Advice in 60 Seconds
The video distills a quarter‑century of gym wisdom into a rapid‑fire 60‑second briefing, targeting anyone from casual lifters to seasoned athletes. It frames injuries as temporary roadblocks, urging viewers to reroute their training rather than halt altogether, and stresses that...

Low‑Carb and Keto Diets Yield Mixed Peak Power Results
The effects of low carb / ketogenic diets on anaerobic performance in athletes 💥 This new meta-analysis compiled data from 13 studies (273 participants) to establish the effects of… 1️⃣ Low-carb diets (≤130 g/day) 2️⃣ Ketogenic diets (≤50 g/day or ≤10% total energy...

More Cardio, Less Food, Still Gaining: Your Midlife Fitness Do-Over with Natalie Jill
The episode of "Better with Dr. Stephanie" features fitness expert Natalie Jill discussing how midlife women can redesign their health strategy. Jill emphasizes that resistance training, especially weighted lifts, is essential for building lower‑body muscle, while cardio alone cannot replace...

Diet and Healthspan - Uncertain but High Value
A new analysis of UK Biobank data by University of Bergen researchers finds that adopting a plant‑forward, whole‑food diet can add roughly a decade to life expectancy for middle‑aged adults. The study quantifies gains of 10.8 years for 40‑year‑old men...

A Mediterranean Diet Rich in Vegetables, Fish, and Olive Oil Reduces Dementia Risk Even in People Carrying Two Copies of...
A 2025 Harvard‑led study published in Nature Medicine found that strict adherence to a Mediterranean diet—rich in vegetables, fish, nuts, whole grains, legumes and olive oil—cut dementia risk by at least 35% among individuals who carry two copies of the...
The Herbal Pair of Smilax Glabra Roxb. And Ficus Hirta Vahl. Improves Exercise Performance by Regulating Mitochondrial Function via the...
The Frontiers in Nutrition study shows that the herbal pair Smilax glabra and Ficus hirta (FSP) markedly improves exercise performance in mice. Daily FSP dosing accelerated lactate clearance, boosted hepatic and muscular glycogen stores, and reduced oxidative stress and systemic...
Impact of Antioxidant and Micronutrient Intake on Varicocele-Associated Infertility: A Retrospective Analysis
A retrospective analysis of 380 men with varicocele‑related infertility found that higher dietary intake of antioxidants and micronutrients was linked to significant improvements in semen quality. Men in the highest intake tertile showed greater sperm concentration (38.79 vs. 33.70 million/ml), total...
A Systematic Review and Meta-Analysis of Vitamin D Status and Clinical Outcomes in Critically Ill Neonates
Researchers performed a systematic review and meta‑analysis of 18 studies involving 1,981 critically ill neonates to assess how vitamin D deficiency (VDD) influences NICU outcomes. The analysis found that VDD is associated with a 2.3‑fold higher risk of sepsis, a mean...

Millions Take Calcium and Vitamin D for Stronger Bones. A Major Review Finds Little Benefit
A new BMJ review of 69 randomized trials involving 153,902 older adults found that calcium, vitamin D, or their combination provides little to no clinically meaningful reduction in fractures or falls. The analysis, which included moderate to high‑certainty evidence, showed...

Blackcurrant May Boost Strength and Focus, but Not Sprint Power
A seven‑day trial with 20 resistance‑trained adults found that both low (250 mg) and high (600 mg) doses of New Zealand blackcurrant (NZBC) supplementation improved bench‑press and leg‑press strength compared with placebo and control. The low dose yielded the largest gains in total...

NMN Boosts NAD+, Reviving Cellular Repair in Humans
NAD+ is the currency your cells spend to repair themselves. When NAD+ drops, your cells stop fixing damage. You age faster. Newer human trials prove what I've been testing for years. NMN raises NAD+ levels in real people. Not mice, not...

Taurine Boosts Heat‑stress Endurance and Sprint Performance
Taurine enhances endurance and sprint performance in the heat 🌡️ This new study recruited 16 college students to complete four experimental conditions… 1️⃣ High dose taurine (6g) 2️⃣ Medium dose taurine (4g) 3️⃣ Low dose taurine (2g) 4️⃣ Placebo Supplements were ingested 50-mins prior to a...