Logan

I buy supplements off the shelf, test them at third-party labs, and publish the full results.

YouTube:

[Logan @Logan_talks]

By its own label, Nutrition Geeks' ashwagandha should have 12.5 mg of withanolides per serving. The lab found 0.154 mg. I asked the lab's CEO if they were sure. I also tested a second batch: 0.118 mg. Full video: https://t.co/31lf3fIxiq #ashwagandha

[Logan @Logan_talks]

Why does your wee smell after a mixed grill? Dr Paul Morgan explains what happens when amino acids are used for energy. #Protein #AminoAcids #NutritionScience #LoganTalksHealth

[Logan @Logan_talks]

Howard & James vitamin D3 K2: apparently 1,000 bottles a month on Amazon UK, a residential address, no website, and about 2,800 IU in a tablet labelled 4,000. Basically the same result at two labs, one batch. Full video: https://t.co/KHqVe3BdHO #vitaminD

[Logan @Logan_talks]

Nutrition Geeks magnesium — 60% magnesium oxide?

I sent a sample for powder X-ray diffraction testing. The results indicated that around 60% of its magnesium came from magnesium oxide, although the label lists glycinate, malate and citrate. Here’s what the testing found.

Comment “mag” for the pure magnesium glycinate brand I recommend.

#NutritionGeeks #Magnesium #SupplementTesting #LoganTalksHealth

[Logan @Logan_talks]

You absorb roughly a third of the magnesium you take. The rest stays in the gut and binds water. That, says a magnesium professor, is why he would try magnesium first for constipation. Full video: https://t.co/76O4upUiTT #magnesium

[Logan @Logan_talks]

Is muscle only built while you sleep? Dr Paul Morgan tackles a gym myth and explains how muscles respond to protein. #MuscleBuilding #Protein #NutritionScience #LoganTalksHealth

[Logan @Logan_talks]

Free Soul Protein — 25%+ underdosed?

In the samples I tested, amino acid results from two labs were 26% and 29% below the label claim. Here’s why I checked amino acids as well as nitrogen.

For the full comparison, search “Logan Talks Health protein” on YouTube.

#FreeSoul #Protein #ProteinTesting #LoganTalksHealth

[Logan @Logan_talks]

What makes a “perfect” protein? Dr Paul Morgan discusses amino acid profiles and why the source matters. #Protein #AminoAcids #NutritionScience #LoganTalksHealth

[Logan @Logan_talks]

I third-party tested Nutrition Geeks' supplements. Label: 80 mg. Lab: 40-45 mg. Their reply was a threat to sue, and a test report for a different batch. Full video: https://t.co/k8nJV8Q7iE #supplements

[Logan @Logan_talks]

Two ways a supplement brand can game a lab test: send the same sample round several labs and pick the result you like, or use your own test method and refuse to share it. Blake Ebersole, on the industry in general. Full video: https://t.co/k8nJV8Q7iE #supplements

[Logan @Logan_talks]

I asked WeightWorld for the third-party test for my batch of vitamin D. First: out of stock. Then: said it was attached (it wasn't). Then: a heavy metals test from 2024. Two labs, same batch, both under the label. Full video: https://t.co/KHqVe3AFSg #vitaminD

[Logan @Logan_talks]

@ojeleye_john Full video https://t.co/31lf3fJ57Y

[Logan @Logan_talks]

I 3rd Party Tested The Top Vitamin D3 and K2 Brands In The UK

[Logan @Logan_talks]

I 3rd-Party Tested 7 Of The Top UK Vitamin D Brands. Full video https://t.co/KHqVe3BdHO

[Senator Rand Paul @SenRandPaul]

“On at least five occasions during his final two decades in government, Dr. Anthony Fauci asked recipients of emails to delete the contents after reading them…”
https://t.co/TwDlhR3ssO

[Logan @Logan_talks]

See the my response to their public statement.

[Logan @Logan_talks]

Nutrition Geeks is one of the fastest-growing supplement brands in the UK. Millions of pouches a month, very low prices.

So I bought their products and sent two separate batches to accredited labs, to see if what's on the label is actually in the capsule.

Here's what came back 🧵

[Logan @Logan_talks]

Both reports they published are what the industry calls black box: a number, with no peaks shown.

You can't see what was measured to arrive at it.

Mine show the peaks. You can see exactly which withanolides and which silymarin compounds are there.

[Logan @Logan_talks]

Suppliers developing in-house methods is normal. Keeping them unpublished is the problem.

We asked on 16 July to see the method so we could rerun the test. As far as we can tell it's only shared with labs under NDA.

As of 22 August, no reply.

[Logan @Logan_talks]

Ashwagandha. Here they did provide a report for the same batch I tested — with a very different result.

Then KSM-66, their ashwagandha supplier, issued a statement: they don't claim compliance with the USP method, and they validate withanolides using their own in-house method.