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Growth hormone peptides promise more than the evidence supports

Raising a hormone isn't the same as getting the result you want, and the gap between those two things is where most of the marketing lives.

GuideFitnessCal BrennanSep 22, 20265 min

Which peptides are approved for people, and which aren't

Insulin is a peptide. So is BPC-157. One is a regulated medicine and the other is sold in a vial that says "not for human consumption."

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GuideFitnessCal BrennanSep 22, 20265 min

What the evidence on BPC-157 and TB-500 actually shows

Two peptides sold as shortcuts for stubborn tendons, one thin human evidence base, and what to do with your elbow in the meantime.

CancerDefying.com — The research, protocols and reading in one place

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Fitness5 min read

Peptides, explained without the sales pitch

The word covers insulin, collagen powder and vials sold as research chemicals. Knowing which is which saves you money and possibly worse.

Poll

Where does your best time with your kids happen?

GuideFitnessCal BrennanSep 22, 20265 min

The recovery tool nobody can sell you

If your lifting has stalled and you're sleeping six hours, the problem isn't your program.

GuideFitnessCal BrennanSep 22, 20265 min

Testosterone after forty and the levers that come first

Before you pay a clinic for a prescription, spend six months on the four things that move the needle for most men in their forties.

Coconut.com — Tell us when. We find where the sun is.

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GuideFitnessCal BrennanSep 22, 20265 min

What a blood panel measures and which numbers to watch

A standard blood draw tells you more about your energy, sleep and training than any wearable will, if you know what you're looking at.

Quiz

Does your wardrobe actually fit you?

Five questions, honestly answered, and a plan for the next two weeks.

GuideFitnessCal BrennanSep 22, 20266 min

Why your pre-workout stopped working and how to reset it

The scoop got bigger, the sessions didn't get better, and the afternoon started falling apart. That's a tolerance problem, not a willpower problem.

GuideFitnessCal BrennanSep 22, 20265 min

What the certification on your protein tub actually promises

Four seals worth knowing, what each one does and doesn't cover, and the two-minute check that beats trusting the label.

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GuideFitnessCal BrennanSep 22, 20265 min

Vitamin D, magnesium and the ones worth testing first

Two supplements are worth most people's attention, one of them can't be usefully tested, and a blood draw beats guessing on the rest.

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GuideFitnessCal BrennanSep 22, 20265 min

What protein powder is for and how much you actually need

Skip the label claims. A tub of powder is a convenience food with one job, and most people are buying it for the wrong reasons.

Poll

What was your first ever job?

GuideFitnessCal BrennanSep 22, 20265 min

What creatine actually does, and what it doesn't

Five grams a day of the cheapest form, taken every day. Everything else you've been told about creatine is either detail or marketing.

GuideFitnessCal BrennanSep 22, 20266 min

What a proprietary blend on the label is actually hiding

Turn the tub around, spend ninety seconds on the back panel, and you'll know whether the thing in your hand is worth the money.

Dude.com — 16 AI advisers who listen, talk and are here with you

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GuideFitnessCal BrennanSep 22, 20266 min

The four supplements worth your money, and the dozen that aren't

Most of the tub on your kitchen counter is doing nothing. Four things have real evidence, and none of them cost much.

Quiz

Is your money actually in order?

Six questions. No email required, no sales pitch at the end.

Fitness6 min

What eight hours at a screen does to your neck, eyes and sleep

Fitness5 min

The protein problem is breakfast, not dinner

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GuideFitnessCal BrennanSep 22, 20266 min

Why eight hours in bed doesn't feel like eight hours of sleep

You were horizontal from ten till six and you still woke up flattened. The gap between time in bed and actual sleep is where the problem usually lives.

GermProof.com — An invisible germ barrier on your skin for hours

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Fitness6 min read

What ten years at a desk did to your posture, and how to undo it

Posture isn't a shape you hold. It's capacity you build. Eight minutes twice a day and two strength sessions a week will do more than any brace.

Poll

What was your first ever job?

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