Grace Holloway
Heart Health & Nutrition Writer
The Health News
Credentials
- 8+ years reporting on cardiovascular nutrition and supplement labelling
- Member, Association of Health Care Journalists
- Certified Health Content Specialist
About
Grace has covered cardiovascular nutrition for most of the past decade, a beat she fell into after sitting through her mother's cardiac rehab classes and noticing how little of what was said there ever made it into the supplement aisle. She spends most of her working week reading trial write-ups and comparing what a label promises against what the research it borrows from actually measured.
Her standing rule for this category is that a nutrient is only as good as the dose behind it, which is why her reviews spend as much time on what a brand refuses to publish as on what it advertises. She writes for readers who already have a cardiologist and want to know whether anything on the shelf is worth mentioning at their next appointment.
Areas of Expertise
Articles (3)
Best Supplements for Circulation and Blood Flow in 2026
Cold hands, tired legs and stairs that register are three different circulation complaints with three different answers. Here is which ingredient maps onto which problem, at what dose, and when the answer is a doctor rather than a supplement.
Do Nitric Oxide Supplements Actually Work? What the Meta-Analyses Found
Three meta-analyses, three modest but real effects, and one reason most people who try these products feel nothing: the dose on the label is almost never the dose in the research.
Nitric Oxide Supplements for Heart Health: What the Research Actually Shows
Nitric oxide is the molecule your blood vessels use to relax. Production falls with age, and four nutrients have randomised trials behind them for supporting it. Here is what each one measured, at what dose, and why almost no product tells you how much it contains.
