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Protein: Have You Ever Wondered How And Why It Fills You Up?

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Protein Really Does Help You Feel Full, But Why? 

According to the September 2012 Tufts University Health & Nutrition Letter,  French researchers published the findings of a study that confirms that dietary protein affects satiety – the feeling of being full and satisfied — something that a lot of people seem to know but that hadn’t previously been explained. The researchers found that there’s a chain reaction of signals between your brain and your digestive system that explains why this happens.

Why Does Protein Make You Feel Full?

When you eat and start digesting dietary protein, it stimulates activity of molecules called mu-opioid receptors, the same receptors that are responsible for your body’s reaction to morphine. As the protein is being digested, the receptors send signals to your brain, which then tells your intestines to release glucose. As your glucose (blood sugar) levels start to rise, both your hunger and your desire to eat starts to get suppressed.

How Much Protein?

The good news is that most of us, barring certain problems, usually meet or exceed our protein requirements. Protein is a very common part of a lot of the foods that we eat — especially if you’re eating a pretty varied diet. Most Americans get about 12-18% of their calories from protein sources.

Every cell in our bodies contains protein – with the exception of bile and urine. Our bodies need that protein to form new cells, repair old ones, and build and maintain muscles.  People with medical issues may have different protein needs and research is showing that protein intake in older adults may help with frailty.

What Are Good Sources Of Protein?

A gram of protein has four calories but the problem is that a lot of our dietary protein comes from large portions of animal sourced foods — like fatty meats and full fat dairy — and not from lean meat, fish, beans, and certain vegetables and whole grains.

The National Academy of Medicine says that most adults can meet their daily need for protein with two to three servings of protein rich food.

Recommended servings might be:

  • 1/2 cup of cooked dried beans
  • One ounce of cheese, two tablespoons of peanut butter, or one egg
  • Two to three ounces (about the size of a deck of cards) of cooked poultry, lean meat, or fish
  • Two to three ounces of soy protein (such as tofu or soybeans).
  • An egg is almost a perfect protein source. One large cooked egg has more than six grams of protein and about 70 calories.

Good vegetable protein sources are: black, pinto, garbanzo, and kidney beans; split peas; peanuts and peanut butter; sunflower seeds; nuts; and soy products.

Animal sources might be:  skinless poultry; bosom; lean cuts of beef and pork trimmed of visible fat; fish and shellfish; and low or non- fat dairy products.

 

 

Granola: Read The Label And Pull Out Your Measuring Cup

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Granola – I admit it, I love most kinds.  But, honestly, most granola can be considered a “health halo” food – a food that seems like it should be healthy (but isn’t) because of the way it’s labeled, or because of what it’s called, or because of some of its ingredients.

Granola always sounds so healthy, filled with oats, grains and maybe nuts or dried fruit – stuff that can be really good for you – except for when it’s cooked in lots of oil or butter and is sweetened with a whole lot of sugar or some other form of sweetener. It also does not have a lot of protein.

The real kicker can be the serving size.  If you haul out your cereal bowl and just dump in granola you can be in  caloric nightmare land. You really need to check serving sizes with granola – the serving size varies with the brand and can be as small as ¼ cup – which can look paltry even in a teacup. There are lower fat versions of granola – although some low fat versions are not necessarily low in calories.  Some examples of granola nutrition:

I have trouble keeping granola in my house — because I really like it.  I find myself shoveling handfuls of it into my mouth straight from the box when I open the cupboard and it’s there, calling my name.  It does make a great topping for ice cream – in measured amounts — if you’re so inclined.

But, if you love your granola and want it for your cereal, just check the ingredients and the serving size.  Know what you’re getting and what you’re eating.

You Probably Should Eat A Healthy Breakfast – Here’s Why . . .

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My Mom always made me eat a “good” breakfast – eggs, leftover hamburgers from the night before, some kind of hot cereal made with milk.  My Mom grew up on a working farm – and farmers had the right idea about the need to fuel themselves for the coming day (and to use whatever food was on hand). The habit of eating a healthy breakfast has stuck with me, but even though many of you know how important it is, you probably don’t always make it a priority or carve out enough time to do it.

The advice to eat a good breakfast has been around for centuries.  It’s clear how it affects your body’s biology, but now it’s being documented that eating a healthy breakfast — especially one high in protein – can leave you feeling fuller and less hungry throughout the day.

 

A Breakfast Study

Research published in the journal Obesity studied teens who either skipped breakfast or ate a 500 calorie breakfast of cereal and milk (with normal amounts of protein) or higher protein meals like Belgium waffles with added protein, syrup, and yogurt for three weeks.

At the end of each week, the teens filled out appetite and satiety questionnaires, and had a brain scan before lunch that used functional magnetic resonance imaging (fMRI) to identify brain activation responses.

The researchers focused on teens because 60% of them skip breakfast and breakfast skipping is strongly associated with unhealthy snacking, overeating (especially at night), weight gain, and obesity.

 

What They Found

The results showed that eating breakfast led to increased fullness and less hunger throughout the morning.  The fMRI showed that before lunch there was also reduced brain activity in regions that control food motivation and reward.

Eating breakfast reduced brain signals that lead to reward driven eating behavior when they’re active.  The higher protein breakfast produced greater feelings of satiety and changes in reward driven eating behavior than the normal protein milk and cereal meal.

Since skipping breakfast is associated with more snacking and food cravings, breakfast — especially one that is rich in protein — could be an effective strategy in controlling appetite and preventing overeating.

 

 

Some Vegetables (some green) Have Protein, Too!

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Are you thinking about eating more vegetables and less meat but worry about getting enough protein?

Of course you can always get protein from excellent non-meat sources like eggs, fish, nuts and seeds, certain grains, and low or non fat dairy products.  But what about vegetables?

Beans and Legumes

Many people are aware that beans can be good protein sources.

For example, here’s the number of grams of protein in one cup of:

  • Cooked soybeans, 29 grams
  • Cooked lentils, 18 grams
  • Cooked black beans, 15 grams
  • Cooked kidney beans, 13, grams
  • Cooked chickpeas, 12 grams
  • Cooked pinto beans, 12 grams
  • Cooked black-eyed peas, 11 grams

What About Other Veggies?

Here’s the number of grams of protein for one cup of each of these vegetables:

  • Cooked lima beans, 10 grams
  • Cooked peas, 9 grams
  • Cooked spinach, 5 grams
  • Cooked broccoli, 4 grams
  • One medium potato, 4 grams

This Is Not A Complete List

There are other vegetable sources of protein, too.  These are just examples of some of the more common veggies that can serve as protein sources.  For a more complete list you can always check the USDA’s data base.

Spinach On Your Sandwich

For upping your protein – especially in a meatless meal – try adding some raw spinach instead of lettuce on your sandwich.  How about broccoli slaw instead of cole slaw, or peas mixed with your pasta?  Sounds good to me!

 

 

 

 

Does Clean Eating Mean Making Sure You Wash Your Veggies?

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What Is Clean Eating?

Clean eating is about wholesome and natural food – food that isn’t full of chemicals, preservatives, additives and isn’t processed and/or refined.

Clean eating is healthy eating. All of the whole, natural, unprocessed foods in a clean diet are chock full of vitamins, minerals, fiber, and other nutrition that will help you control your weight, blood pressure, blood sugar, and cholesterol, and other markers important for good health.

What To Do

To eat clean, the April 2011 edition of Environmental Nutrition lists seven basic behaviors:

  • Eat fresh, uncomplicated, whole food – and choose it in its natural state.
  • Eat smaller meals – perhaps three small meals and two snacks each day instead of behemoth portions.
  • Eat good carbs  — keep the healthy carbs like veggies, legumes, whole grains, and fruit in your life – and ditch the processed and refined ones like the “whites”  (sugar, flour, rice).
  • Incorporate healthy fats like the monounsaturated fat in olive oil and nuts and cut down on the saturated fats found in dairy and animal products and the trans fats in processed baked and fried foods.
  • Eat high quality lean protein like fish, chicken, turkey, lean meat, and low or non-fat dairy.
  • Make water your beverage of choice.
  • Move your body.

By the way, you do need to wash your vegetables – and fruit.  Wash them really well in plenty of plain water.  No need for detergents or fancy vegetable washes.