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 Elite Fitness Bodybuilding, Anabolics, Diet, Life Extension, Wellness, Supplements, and Training Boards
 Diet Discussion Board
 Long term low carb diets...can they screw up your thyroid?
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| Author | Topic: Long term low carb diets...can they screw up your thyroid? | ||
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Amateur Bodybuilder 
Posts: 179 |
This topic came up when I asked a board member about t3, and he said the best time to do it is after months of lo-carb diets because your natural T-3/thyroid levels are very low... Any one know anything about this...is it true...and how can us lo-carbers prevent this. THANX BROS ------------------ Flash� version--> http://www.geocities.com/richmaffei/index.html None Flash� version--> http://www.geocities.com/richmaffei/pages/home.html [This message has been edited by Buld0g (edited August 29, 2000).] [This message has been edited by Buld0g (edited August 29, 2000).]     | ||
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Elite Bodybuilder 
Posts: 764 |
Yes it's true. And it's a good thing, too, if you're not taking any AS. It seems to be your body's way of protecting it's muscle mass which would otherwise be cannabalized in a chronic low carb environment. The best things to try are either supplementing with T3 (preferably in the presence of AS) or to have occassional high-carb periods. The latter method is preferable because carbs are muscle-sparing at the same time they increase your natural thyroid output. | ||
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Amateur Bodybuilder
Posts: 72 |
Don't take T3. You can bring back your Thyroid by eating 2 weeks of hi carb 300 calories over your maintaince and then you cant start dieting again. T3 would be worse in the long run because once you get off of it you will gain the weight back rapidly If you return to your normal eating. It will take about a month or 2 to get your thyroid back in gear. | ||
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Pro Bodybuilder 
Posts: 504 |
MS, Does this also hold true on a CKD or do the carb-ups prevent the T3 downregulation? | ||
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Amateur Bodybuilder
Posts: 140 |
Long term low carb dieting will cause your thyroid to slow down, reducing your metabolic rate. Be careful if your using T3 because the possible rebound effect could be devistating. | ||
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Elite Bodybuilder
Posts: 764 |
Anabolicum, the weekend carb-ups are very good at keeping your Thyroid levels functioning normally. I assumed Buld0g was referring to an Atkins type of chronic low-carb diet. If he meant CKD, then I take it all back. But I would like to re-emphasize that T3 is not a good supplement for people who aren't on some sort of AS. A regular carb-up is safer and more effective. | ||
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Amateur Bodybuilder
Posts: 286 |
All diets that reduce calories cause a reduction in T3 formation, low carb or high carb. Low carb tends to be a little faster due to the rapid reduction in liver glycogen stores. I don't think the carb-up is sufficient to prevent this from occuring. One idea is to supplement with phosphate salts, which have been shown to prevent the reduction in metabolism during a diet. |
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Ultimate Bulletin Board 5.45c
posted August 29, 2000 04:27 PM
