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If I eat only twice/day, will my body EAT MY MUSCLES ???

Commented on June 15, 2014
Created June 15, 2014 at 4:46 AM

Recently, I stopped eating breakfast, and only have black coffee. I'm able to only eat twice/ day (noon and 6pm) - no snacking. I estimate I'm eating 1,700 calories / day. I went from 195 to 187 over about 5 weeks.

When I told a friend of my recent success, he warned that my body will break down muscle since I only feeding 6 hours/day.

Is he right, and if he's not, do you have any links I can convince him with?

Even if I introduce breakfast, I would like to contain my carb-eating to 6 hours/day so 18 hours/day I'm in a fat burning mode, not an insulin based fat storage mode.

Thanks,

Mike

Cf08ad26759fdd206a2c9f9385080a57

(995)

on June 15, 2014
at 05:45 PM

Cf08ad26759fdd206a2c9f9385080a57

(995)

on June 15, 2014
at 05:31 PM

Relevant:

http://perfecthealthdiet.com/2011/03/protein-for-a...

At 148lb and 9% BF and 1.5g/kg to reach nitrogen balance, that's around 92 grams of protein, with muscle gains reaching up to 1.8g/kg at 110 grams of protein a day with toxicity beginning around 150g-200g a day. (At 148/9%, I do around 100g.)

"So, the 'plateau region' where all the benefits, and none of the toxicity, are achieved is between 150g/day and some protein intake not much above 150g/day."

The down side is cramming that into two meals and spiking insulin / glucose.

http://jn.nutrition.org/content/early/2014/01/28/j...

7fc82eebafd44badc73c520f44660150

(3275)

on June 15, 2014
at 02:57 PM

Thanks! That's a really great point. If I only have TWO 4oz servings of beef, that's only 50g of protein, which is probably not enough. I think I'll have protein/fat-only breakfast, and keep the carb-feeding window to 6 hours from a low-insulin, fat-burning perspective.

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2 Answers

0
7fc82eebafd44badc73c520f44660150

on June 15, 2014
at 03:19 PM

After re-reading the protein chapter in The Perfect Health Diet (one of my all-time favorite health books: http://www.amazon.com/Perfect-Health-Diet-Regain-Weight-ebook/dp/B007USA6MM/ref=sr_1_1_ha?s=books&ie=UTF8&qid=1402841102&sr=1-1&keywords=perfect+health+diet ) , I wanted to know how my new breakfast-skipping, coffee fueled morning routine fit with my over-all protein needs.

"The U.S. RDA for protein— 0.8 gram per kilogram of body weight per day— is designed to bring 97.5 percent of Americans into nitrogen balance. That seems a fair estimate to us of the minimum safe protein intake— the low end of our peak health range."

Being a 190 pound guy (86 kg), that 0.8 g/kg means 70g of protein. That equates to 11oz of beef chuck roast / day. So, with just 2 meals a day, that's two 5.5oz servings.

Cf08ad26759fdd206a2c9f9385080a57

(995)

on June 15, 2014
at 05:31 PM

Relevant:

http://perfecthealthdiet.com/2011/03/protein-for-a...

At 148lb and 9% BF and 1.5g/kg to reach nitrogen balance, that's around 92 grams of protein, with muscle gains reaching up to 1.8g/kg at 110 grams of protein a day with toxicity beginning around 150g-200g a day. (At 148/9%, I do around 100g.)

"So, the 'plateau region' where all the benefits, and none of the toxicity, are achieved is between 150g/day and some protein intake not much above 150g/day."

The down side is cramming that into two meals and spiking insulin / glucose.

http://jn.nutrition.org/content/early/2014/01/28/j...

0
Cf08ad26759fdd206a2c9f9385080a57

(995)

on June 15, 2014
at 05:26 AM

I don't think a small eating window is going to have your body eating into its muscles on its own. Hugh jackman was able to cultivate a pretty decent amount of mass with a 16hr fasting / 8hr eating window. But, he did it with lots of protein and thousands of calories. If you're restricting your caloric intake to 1700 and running fasted on coffee with inadequate protein intake against demanding exercise, I would certainly expect to lose some size. Ymmv.

Since I've been eating a couple large meals a day, I've been able to add on a few lbs, and it's not weight from fat.

7fc82eebafd44badc73c520f44660150

(3275)

on June 15, 2014
at 02:57 PM

Thanks! That's a really great point. If I only have TWO 4oz servings of beef, that's only 50g of protein, which is probably not enough. I think I'll have protein/fat-only breakfast, and keep the carb-feeding window to 6 hours from a low-insulin, fat-burning perspective.

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