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20th of October 2018

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The MATADOR Intermittent Diet | T Nation

The majority of diets don't work for long. Hunger pangs plague you, performance drops, and your metabolism fights back. The MATADOR study found greater long-term fat loss with intermittent energy restriction. You lose fat, maintain sanity, and get results that last. Restrict calories by 30% for two weeks. Then you eat maintenance calories for two weeks. Rinse and repeat as necessary. Intermittent Energy Restriction

Most dieters fail after a few short weeks. That's because they try to do too much, too soon. A better approach is an intermittent energy restriction diet.

In 2017, the groundbreaking MATADOR (Minimizing Adaptive Thermogenesis And Deactivating Obesity Rebound) study found greater long-term fat loss with intermittent energy restriction than with a consistent energy deficit. In geek-speak, "energy" means calories in this case.

The intermittent dieters used periods of a 30-35% deficit, followed by periods at maintenance calories. The protocol prevented the down-regulation of the hormones that control hunger, appetite, satiety, and caloric expenditure.

How It Works

You'll use two-week periods of aggressive dieting with a 30% deficit, followed by two weeks eating at maintenance calories. You'll continue this two-on, two-off approach until you're as lean as you want to be.

Weeks 1-2: Below-maintenance diet with 30% calorie deficit Weeks 3-4: Maintenance calories

Repeat as needed.

How to Set It Up

You first need to find out your calorie maintenance level, and the best way to do that is to get tested by a qualified professional. Every other number is an estimate, especially if you've been yo-yo dieting for a long time, which means your maintenance calories may be much lower.

However, finding a qualified pro is probably daunting. So let's use bodyweight (pounds) x 15 as a baseline. It won't be perfect, but it'll be close enough to the more complicated equations to provide a solid starting point.

Let's say you weigh 200 pounds:

200 pounds x 15 = 3000 maintenance calories per day

We want your caloric deficit to be 30%, so now we'll multiply your 3000 maintenance calories by .7:

3000 x .7 = 2100 calories Your Diet Would Look Like This Two-Week Diet Phase: 2100 calories per day Two-Week Maintenance Phase: 3000 calories per day

After the month, recalculate your maintenance calories based on your new bodyweight and do it again if you need to.

Diet Phase Macros

Using our 2100 calorie example, we want it to consist of:

35% Protein 2100 calories x .35 = 735 calories/4 calories/gram = 184 grams of protein per day 35% Carbs 2100 calories x .35 = 735 calories/4 calories/gram = 184 grams of carbs per day 30% Fats 2100 calories x .30 = 630 calories/9 calories/gram = 70 grams of fats per day

Note: It's more important to nail your calories and protein intake than to be perfect on your carbs and fats. If you prefer higher or lower carb intake, you can adjust accordingly.

That adds up to:

2100 calories per day 184 grams of protein per day 184 grams of carbs per day 70 grams of fat per day

After two weeks, you'd switch to the maintenance phase.

Maintenance Phase Macros

Using the 3000 calorie example during the maintenance phase, it should look like this:

30% Protein 3000 calories x .3 = 900 calories/4 calories/gram = 225 grams of protein 40% Carbs 3000 calories x .4 = 1200 calories/4 calories/gram = 300 grams of carbs 30% Fats 3000 calories x .30 = 900 calories/9 calories/gram = 100 grams of fats

That adds up to:

3000 calories per day 225 grams of protein per day 300 grams of carbs per day 100 grams of fat per day

After four weeks, recalculate your calories based on your new bodyweight and repeat until you're the lean, mean machine of your dreams.

Abs Here's Why It Works

By using a cyclical approach to fat loss, you're able to push your body to burn bodyfat over the course of two weeks. But your body naturally begins to fight back, slowing down your metabolism and thyroid function as a protective mechanism.

As such, the hormones that control hunger, appetite, and satiety (leptin, cholecystokinin, and peptide YY) decrease. But instead of battling further and continuing to eat like a bird, the MATADOR approach has you increase calories back to maintenance level. This boosts your hormone profile and metabolism back to full speed.

This may lead to slower short-term fat loss, but it protects your metabolism from down-regulation. This increases the odds that you'll achieve long-term, sustainable fat loss.

This approach works well with gym rats, too. Anyone who's followed an aggressive long-term fat loss diet can tell you that gym performance will eventually suffer. It's nearly inevitable that you'll lose some strength and muscle if you diet long and hard enough. However, cycling calories back up, as prescribed by intermittent dieting, should prevent losses in strength and muscle.

What's Wrong With Traditional Dieting?

Everything! The bland food bores you to tears. Hunger pangs become an unwelcome houseguest who refuses to leave. Worst of all, your workout performance falls off a cliff.

And when you extend the diet? Your metabolism fights back and you burn fewer calories at rest, thus bringing fat loss to a screeching halt.

Once the initial surge of motivation wears off, willpower drains away. You slip back into old habits and never truly get lean. You keep beating your fat head against the wall, often for years.

Isn't it time to try the science-driven method of intermittent dieting?

Related:  The 16:8 Fasting Diet Related:  The 5/2 Fat-Loss Diet for Lifters References Batterham, R. L., & Bloom, S. R. (2003). The Gut Hormone Peptide YY Regulates Appetite. Annals of the New York Academy of Sciences, 994(1), 162-168. Byrne, N. M., Sainsbury, A., King, N. A., Hills, A. P., & Wood, R. E. (2017). Intermittent energy restriction improves weight loss efficiency in obese men: The MATADOR study. International Journal of Obesity,42(2), 129-138. Liddle, R. A. (1997). Cholecystokinin cells. Annual Review of Physiology,(60), xii, 221-242. Read More




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