How Much Calorie Deficit on Clen?

For those of you who have actually ran clen successfully, what kind of a calorie deficit we’re you on?

A smaller deficit or just under maintenance and let the clen do the work?
A much larger deficit and use the clen to keep the metabolism running and for anti catabolic effects?

I’m looking at running four weeks without breaks to lean out a little before my next blast. Correct me if I’m wrong, but I’m assuming that’s ok because the effects don’t subside until after 4-6 weeks

Take what I say with a grain of salt. I don’t know what I’m talking about or how any of this works.

I can only tell you about my own experience.

120mcg per day. 2weeks on 2weeks off. 1000 calorie daily deficit.
7/28 239, 8/4 235, 8/11 230, 8/18 230, 8/25 235, 9/2 224

Down 15lbs in 5 weeks.

Thanks, Jones, I value experience much more than research so this was very helpful!

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I only took clenbuterol the final weeks before a contest. I don’t recall the dosage or the time duration, but I did know that it down regulated pretty quick, like 3 weeks. All this was a long time ago.

I saw no need for it just to look cut.


This should be used for a specific goal like contest/paid photo shoot. Otherwise just put in the work.


I always do as big of a deficit as i possibly can, and only then add stuff.

clen wont do the work for you…

I think you should do a 500 calorie deficit and when you stall then add then to get pass the plateau that everyone hits. I wouldn’t touch clen until then. I have a feeling based on your post that you are not at the point to add clen. Just my 2 cents.

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I am way under -500 cals, close to my goal and getting close to a total standstill so your response is very fitting

Thanks fire

You want to get lean fast? 8 x Body weight for calories, set protein at 1g per lb of BW, carbs 100g, rest of the calories from fat. Add a cheat meal once a week with no limits, this is a short term strategy for most, got me in shape for my contest.


I’d say start out lower if you are hell bent on using clen. Titrate the dose up in 20 mcg steps EOD.

Disclaimer: I have never used clen and won’t. I’d advise substituting it for salbutamol.


That’s what I did. Not going past 120.

In the off weeks I’m using salbutamol 4mg daily

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I would advise against it since you are over stimulating the receptors for half the day with one dose and more than that if you split it up. Essentially negating the recovery period from Clen.

But hey, if it works for you. Just keep in mind that cardio toxicity is heightened then.

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Thanks. Didn’t consider any of that. The whole point of the 2-week break is to recover, I’m not allowing my body to do so by using something else.

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Yes, right. No problem. Specifically the beta2-adrenergic receptors to which clen binds down-regulate extremely fast. The two week break let’s them regulate back up so smaller doses of clen have the desired effect again.

If you have salbutamol at home anyways, you could consider taking 2 mg of that in the morning and 2 mg in the afternoon. Then your body can recover from the stimulation every night. You reduce cardio toxicity, reduce the feeling you have after weeks of clen and your body is free of adrenergic stimulation at night which should produce better sleep, rest and recovery. The calorie burning effect is then only working by day, but that’s when you are active anyways. I see only benefits over Clen.

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