Supplement INDEX | Research Digest

Evidence-based notes on supplements, nutrition, sleep & performance.

Educational only—Not medical advice.

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[Supplement INDEX | Research Digest @SupplementIndex]

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[Supplement INDEX | Research Digest @SupplementIndex]

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Persistent or severe symptoms deserve medical advice. Don't keep switching bottles as a substitute for checking what's going on.

Our guide explains the tolerance-versus-quality distinction:
https://t.co/WVyAJtzgMg

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No fishy burps? Nice. But that isn't a certificate of freshness.

Burps alone aren't a rancidity test either. Here's a better way to separate tolerance from quality questions. ↓ 1/3

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Check the label directions, serving size, storage and expiration. Note when symptoms happen and what you took.

Taste or burps alone don't identify the cause.

When should you stop guessing? ↓

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Our NOW Foods guide links the individual product analyses, including the label details and tradeoffs.

Useful if you're checking a specific bottle, not looking for an all-purpose brand rating:
https://t.co/w7CbQ7VI1v

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'Is NOW Foods good?' I'd start with 'Which product?'

A magnesium bottle, a fish oil and a probiotic aren't the same purchase.

Here's a checklist you can reuse instead of a blanket yes or no. ↓ 1/3

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For the bottle you're considering:
- Exact formula + serving
- Other ingredients
- Current product-level quality proof
- Cost per serving

Brand familiarity helps you recognize the name. It doesn't answer all four.

Here's where to dig into the specifics ↓

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Compare equivalent servings and confirm current seller price and stock. A brand-wide rating can't choose your specific formula.

Our NOW Foods guide links the individual analyses:
https://t.co/jSoxU3OUyP

[Supplement INDEX | Research Digest @SupplementIndex]

You saved a brand review months ago. The bottle you're buying today still needs its own label check.

A familiar name doesn't settle formula, serving or other-ingredient questions. Here's the short list. ↓ 1/3

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Check the exact product and size, current Supplement Facts, other ingredients and public product-level quality proof.

Don't borrow facts from a different bottle in the same brand.

One final value check ↓

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Certification doesn't prove better sleep. Price and quality checks don't guarantee a personal health benefit.

Our analysis covers ingredients, cost per serving and alternatives to compare:
https://t.co/nFLQMcRlQn

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Paying more for Thorne's magnesium powder? Know what the label and certification actually tell you.

Here's the scoop-size check, and what the badge doesn't prove. ↓ 1/3

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For this powder:
- 200 mg magnesium per scoop
- 60 servings
- An NSF Certified for Sport listing

Check the exact product, not a different Thorne formula. These are label and listing checks, not a hands-on test.

Now the important limit ↓

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Extra Strength 500 mg powder is a different product. Confirm the current label and exact version before using any comparison math.

Our format comparison:
https://t.co/8pDsSAr6OE

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A supplement that looks simple online can be a hassle every day.

One scoop and four capsules aren't the same routine, even when the magnesium amount matches. Here's what to check. ↓ 1/3

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The pictured Solaray label examples list 350 mg per rounded scoop or per four capsules.

Check mixing, swallowing, other ingredients and cost per serving. Neither format guarantees better sleep.

Don't mix up the variants ↓

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Keep the amount and your reason consistent when comparing forms. Neither is automatically best for everyone.

Our side-by-side guide explains the differences without treating a form name as a promise:
https://t.co/9ZRQ9jBjnw

[Supplement INDEX | Research Digest @SupplementIndex]

Glycinate or citrate? It's easy to turn this into a vote for the 'best' magnesium.

Your reason for taking it matters more than a popularity contest.

Here's a 3-step check before you pick a bottle. ↓ 1/3

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1. What are you trying to address?
2. How much actual magnesium is in a serving?
3. What about stomach tolerance and medicines?

The form name alone can't answer those. Magnesium supplements can cause GI side effects.

A useful comparison needs this too ↓

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Sudden unexplained swelling or other concerning symptoms? Get medical advice instead of writing it off as creatine.

Save the diary checklist; our guide covers forms and safety:
https://t.co/MyboaroNFQ

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One weigh-in after starting creatine tells you a number, not a diagnosis.

Food, training and water changes can complicate the story. Here's the tiny diary worth keeping. ↓ 1/3

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Record the start date, amount used, food or training changes and longer-term weight trend.

Creatine can increase water weight. That doesn't explain every new symptom or prove fat gain.

Don't skip this safety check ↓