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FEATURED · GUIDES
Magnesium Glycinate vs. Citrate: Which Is Right For You?
Both are common forms of magnesium, but they work very differently. Here's how to pick the right one for sleep, stress, or digestion.
suppdoc Editorial · 5 min read
— THE JOURNAL —
Read before you supplement.
Plain-language guides to what works, what doesn't, and how to spend your supplement budget where it matters most.
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SLEEP
The 5 Best Supplements for Better Sleep (Backed by Science)
Forget melatonin. These five evidence-led supplements address the actual root causes of poor sleep — stress, low magnesium, and circadian disruption.
6 min · Apr 18, 2026
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ENERGY
Vitamin D Deficiency: 7 Hidden Signs You Might Have It
Vitamin D deficiency affects an estimated 1 billion people worldwide. The symptoms are subtle — until they're not.
5 min · Apr 12, 2026
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NUTRITION
Omega-3 Fish Oil vs. Algae: A Complete Comparison
Algae omega-3 isn't just for vegans anymore. Here's how plant-based omega-3 compares to fish oil on absorption, sustainability, and cost.
5 min · Apr 5, 2026
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STRESS
Ashwagandha: How This Adaptogen Lowers Cortisol
Ashwagandha is one of the most-studied herbal supplements on earth. Here's the science of how it calms cortisol — and when not to take it.
6 min · Mar 28, 2026
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RECOVERY
Creatine for Women: Why It's the Most Underrated Supplement
Creatine isn't just for bodybuilders. For women, it supports strength, cognition, recovery, and even bone density — at less than $0.50 per day.
5 min · Mar 20, 2026
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STRESS
Adaptogens: What They Are, How They Work, Which to Pick
Ashwagandha, rhodiola, reishi, eleuthero — the adaptogen category is exploding. Here's how to make sense of it and pick what actually works for you.
7 min · Mar 14, 2026
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NUTRITION
The Complete Guide to Vegan Supplementation
A plant-based diet is one of the healthiest ways to eat — but it leaves a few specific nutrient gaps. Here's exactly what to supplement.
7 min · Mar 8, 2026
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NUTRITION
Probiotics 101: How to Pick One That Actually Works
The probiotic aisle is chaos. Strain numbers, CFU counts, prebiotics, postbiotics… here's a no-nonsense guide to picking the right one.
6 min · Feb 28, 2026
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WOMEN'S HEALTH
Iron for Women: When You Need It (And When You Don't)
Roughly 1 in 5 women of menstruating age has low iron — yet most don't know. Here's how to know, how to test, and how to fix it safely.
5 min · Feb 20, 2026