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You Ask, I Answer: Iodine

The only salt I have at home (and use for everything) is sea salt.

The packaging states that it is not a source of iodine.

Do I need to use regular table salt in order to get iodine in my diet?

How would I know if I had an iodine deficiency?

How much should I get each day?


-- Crystal Fales

Philadelphia, PA


Iodine has a very specific function in the body -- without it, our thyroid gland is unable to produce an important hormone called thyroxine.

Consequently, an iodine deficiency results in the enlargement of the thyroid gland (a condition known as goiter, pictured at left) as well as hypothyroidism (some of the main consequences of this include a slowed down metabolism and increased total blood cholesterol.)

Thyroxine is also crucial for brain growth and development in babies (both inside and outside the womb) and children.

Although table salt contains iodine (a direct result of fortification), so do many other foods.

Ironically, although iodine is not in sea salt, anything that lives in the sea (whether it's fish or plants) is a great source of the mineral.

Dairy and eggs are also fairly good sources of iodine, as a result of food processing techniques.

Vegetables are a little tricky because their iodine content varies on the amount of the mineral found in the specific soil in which they grow.

Adults should aim for approximately 150 micrograms a day. This figure is not too helpful, though, since most foods that contain iodine do not contain nutrition fact labels, and those that do do not list it.

A three-ounce serving of fish (the size of a human palm and as thick as the average adult's pinky finger) provides approximately 150 to 300 percent of a day's worth of iodine.

Vegans can sometimes be low in iodine (again, depending on the specific content of iodine in the vegetables they are eating,) so supplementation is always an option.

Be careful with over-supplementation, though. An excess of iodine results in hyperthyroidism, which can lead to insomnia, restlessness, and rapid heartbeat.

Lastly, allow me to point out that the sodium in processed foods is not fortified with iodine. So, a frozen meal containing sky-high levels of sodium provides absolutely no iodine.
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You Ask, I Answer: Bulimia Nervosa

I'm not sure if you can answer this, but why is it that people who have anorexia [nervosa] are usually easier to spot than people who have bulimia [nervosa]?

-- Karen (last name withheld)

Orlando, FL


I think what you are referring to, Karen, are some of the physical symptoms of these two particular eating disorders.

Anorexia nervosa is accompanied by extreme -- and sometimes rapid -- weight loss.

In turn, faces can become gaunt, hair can start thinning, and clavicles and ribs can become more visible. To the naked eye, anorexia nervosa is certainly more visible.

One reason why people living with bulimia nervosa can live with it for so long without physical manifestations is because purging -- whether through self-induced vomiting or excessive consumption of laxatives -- does not eliminate all consumed calories.

The latest studies emerging from the University of Pittsburgh -- conducted in a laboratory setting, where researchers first calculated the amount of calories in patients' binges and then analyzed what was regurgitated for caloric values -- have determined that approximately half the calories in a binge are retained by the body.

Keeping in mind that some binges can consist of 3,000 to 5,000 calories in one sitting, it is very feasible that, even after purging, someone can provide their body with a day's worth -- or more -- of calories.

This is very much in contrast with an anorexia nervosa picture where caloric intake is often in the low three digits.
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You Ask, I Answer: Food Cravings

Is it true that craving a certain food is a sign that you are low in the nutrients that food has?

-- (Name withheld)

Albany, NY

This is a much-believed myth.

Food cravings have more to do with rises and drops in specific brain chemicals (i.e.: serotonin) as well as emotional states than nutrition.

Many people find, for instance, that they are more likely to crave fatty and/or sugary foods when they are stressed, sad, anxious, or lonely.

It's also worth pointing out that most cravings are for particular tastes and textures, as opposed to specific vitamins and minerals.

A craving for ice cream, for instance, does not mean the body is in need of calcium. Nor does a craving for potato chips signify low potassium levels.

If this were the case, people would be just as likely to crave a glass of milk or some baked tofu in place of ice cream, or an avocado or bananas rather than potato chips.

I find that frequent cravings often signify eating patterns that are too strict or limited.

Liberalizing food selection usually leads to less cravings, and, consequently, less chances of losing control once that craving is fulfilled.

Another important factor worth keeping in mind with cravings is to truly identify what is being sought.

A lot of people fall into the trap of attempting to satisfy a craving by eating anything BUT the very thing they want.

If you are craving chocolate, fruit isn't going to cut it. Neither are whole wheat crackers or peanut butter. Coincidentally, sometimes the avoidal of a craving results in a higher caloric intake than the craving itself!

The key, particularly with fatty and sugary cravings, is to find a small amount that is truly satisfying.

For instance, when I crave chocolate, I have a few squares of an intensely dark chocolate that I love.

Those two squares are less than 100 calories but, thanks to the rich and decadent flavor, fulfill my craving much better than, say, 250 calories of a regular milk chocolate bar.
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Out With The Old, In With The New

Many moms and dads all over the United States know what the start of the school year means -- packing a lunch for their children!

So how do you pack an interesting and tasty lunch (which, for this posting's sake, I will assume can not be heated in school)? Here are a few ideas.

INSTEAD OF: Cutting a sandwich into two triangular pieces
TRY: Shaped sandwiches

Next time you make a sandwich, get your cookie cutter out. Forget the traditional diagonal slice and instead turn that square slice of bread into a star, a cat, or even a gingerbread man.

PS: If your kids don't dig whole wheat "brown" sandwiches, try a "halfie."

A sandwich made with one slice of 100% whole wheat bread and another of white bread still packs in 3 to 4 grams of fiber.

INSTEAD OF: Packaged chips
TRY: Making your own pita chips

Here's a kid-friendly way to boost a bagged lunch's fiber content.

Buy 100% whole wheat pitas and cut each one into eight small triangles. Brush a thin coating of extra virgin olive oil on them, sprinkle a little salt (and, for an extra kick, either some paprika, rosemary, or oregano), and toss them in the oven (350 Fahrenheit) for approximately 20 minutes.

For a sweet twist, sprinkle cinnamon, nutmeg, and 1 teaspoon of sugar (a mere 16 calories) over them.

Make a big batch on Sunday afternoon for the rest of the week.

INSTEAD OF: Sugary puddings
TRY: A Super Smoothie

In a blender, mix two of your child's favorite fruits with 2% milk. Add a tablespoon of flaxseed, another of oat bran, mix, and pour into a thermos!

These two ingredients add nutrition and texture to the smoothie but don't affect the taste one bit.

INSTEAD OF: Chocolate brownies or cookies
TRY: A homemade choco-mix

Mix a low-sugar, whole grain cereal (like Cheerios), a handful of mixed nuts, and a few chocolate chips or M&M candies into a small zip bag. This way, little bursts of chocolate are surrounded by fiber, protein, vitamins, and minerals (as opposed to white flour, sugar, and unhealthy fats.)
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Survey Results: Hunger & Satiety

The latest Small Bites survey dealt with the issues of physical vs. emotional hunger as well as recognizing satiety (a healthy feeling of fullness.)

The results were pretty evenly spread out:

Very well, always: 5%
Very well, most of the time: 35%
Somewhat well: 34%
Not well at all: 24%

I find this to usually be the most difficult hurdle for many people to jump over in their quest to achieve their healthy eating goals.

After all, you can have the healthiest diet in the world (meaning, full of nutritious foods) but if your hunger and satiety recognition mechanisms are off, you can still end up overconsuming calories and gaining weight.

These behaviors -- and, in many cases, patterns -- can be very frustrating to change largely because they stem from years of conditioning.

I think a variety of factors can make it challenging for people to recognize their hunger level.

For one, too many people assign themselves strict eating times.

They may be hungry at 11 AM (say, two and a half hours after breakfast) but if they are meeting a friend for lunch at noon, they think, "Ah, might as well hold out. Don't want to ruin my appetite!"

WRONG! Part of being an active participant the hunger game is listening to your body's cues.

If your body is demanding a few nibbles at 11 AM, go ahead and provide them.

This is not to say you now have a pass to eat two Entenmann’s donuts or half a stack of Pringles.

However, if your next meal is in an hour, keep hunger at bay by snacking on an ounce of nuts (remember, an ounce is approximately 24 almonds – quite a bit!)

Those 140 calories will keep you satisfied until lunch, making it easier to have one roll, rather than three, from the bread basket.

What if the snack fills you up more than you think, and by the time you meet your friend you are only hungry enough for an appetizer? Then simply order an appetizer.

Don't order an entree just because your friend does and, well, you don't want to "make her look bad" or "insult him."

Sharing lunch with a friend is about communication, catching up, and enjoying yourself. THAT should be your focus. Not second guessing yourself or putting your needs aside just to "look" good.

The worst thing you can do is ignore your hunger. The trick is to feed your body foods that are filling and satisfying without breaking the caloric bank.

A srerving of whole grain crackers, for instance, is a great way to give your body a little something in a 120 calorie package.

Similarly, a piece of fruit or some baby carrots with hummus can help keep hunger at bay so you don't have that insatiable need to devour something -- ANYTHING! -- on your way home from work later that afternoon.

It is quite a simple formula. The more you ignore your hunger, the more likely you are to overeat and go past your satiety point.

You can't expect yourself to recognize a healthy feeling of fullness if you are absolutely starving!

Another trap for many people? The idea that in certain locations -- and situations -- you must eat.

Answer the following:

How many of you eat a slice of cake at someone's birthday party at your place of work simply because cake slices are being passed around, regardless of your hunger level?

I know I have done it before. I distinctly remember a time when I had just finished a very filling lunch and stopped by a co-worker's going away party.

Whoever organized the food had gone all out. Cake, cookies, brownies, chips and salsa... it was all there.

Sure enough, about five minutes after I arrived, the cake was cut, someone handed me a piece, and I dug right in.

It was actually a little dry, and the frosting tasted like chemicals. After the third or fourth bite, I felt uncomfortably full -- and dissatisfied!

It suddenly hit me. I wasn't having cake because I truly wanted some, or because I enjoyed the taste. I was having it because somewhere in my mind I thought I was "supposed" to.

I still remember that event pretty vividly to this day because it truly gave me a different perspective on my relationship with food.

Now, in social situations, I don't think about what I "should" be doing or even what everyone else is doing. I simply ask myself: would I be eating RIGHT NOW if I wasn't in this situation?

Sometimes the answer is "yes," but a lot of other times it's "no." And if someone asks why I'm not having a slice of cake or one of the catered sandwiches, I reply with the truth, "I'm not hungry right now, thank you."

And then there's the movie theater. Sometimes I'll snack on some whole wheat crackers and some trail mix (yes, I sneak food in -- so sue me!). Other times, though, all I need is a beverage to quench my thirst.

A few years ago, though, my mind always equated movie watching with popcorn, pretzels, malt balls, and soda.

This is not to say you can't enjoy some popcorn or share a chocolate bar with your movie companion next time you hit the multiplex, but the key is in doing that out of actual physical hunger, rather than some ingrained mandate that advertisers have lodged into our minds.

These check-ins with yourself might initially seem odd and different. In a society so obsessed with consumption, we generally don't hear the "Ask yourself -- why am I craving this right now?" message.

Once you develop it into a daily habit, though, you have quite a powerful tool in your hand.

PS: I'll discuss emotional eating in a future post (later this week.)
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Numbers Game: Answer

Au Bon Pain's "sausage, egg, and cheddar on an asiago bagel" breakfast menu item contains 810 calories and 115 percent of a day's worth of saturated fat (for a 2,000 calorie diet).

I find those numbers quite shocking.

That caloric value represents half of what some people should be eating in an entire day!

It is precisely when I see these kinds of figures that I don't understand how anyone can perceive mandatory calorie posting on menu boards as a "bad" or unnecessary idea.

By the way, if you're an Au Bon Pain breakfast person who loves a bagel in the morning, you still have options.

One of your best? Eggs on a honey 9 grain bagel.

Not only do you cut calories significantly (down to 360), you also get 4 grams of fiber (the 9 grain bagel offers the most fiber, although I don't believe it is 100% whole grain) and only FIVE percent of your daily saturated fat limit.


Additionally, the 21 grams of protein will do their part in helping you feel full well into the late morning.
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You Ask, I Answer: Wheatgrass

I really liked your video on supplements. So many of them are just empty hype. I completely agree with you.

What are your thoughts on wheatgrass? One of my cousins swears by it.

He says it's the easiest way to get a bunch of vitamins and minerals.


-- Name withheld

New York, NY

Wheatgrass juice, the end result of pulping the young shoots of sprouted wheatberries, sure sounds like a magic green potion.

Depending on who you listen to, it clears acne, helps detoxify the colon, has "living enzymes" (ugh!), and even cures cancer and heart disease.

Before I go on, allow me to say "shame on you!" to anyone who advertises a food, beverage, or supplement as a cure for any disease, much less cancer.

It's absolutely despicable to toy with people's emotions and hopes like that.

Anyhow, I'm sure someone, somewhere, also claims wheatgrass gives you a foot massage after a long day at the office.


Wheatgrass advocates point out its high chlorophyll content as a major "plus" in the nutrition department.

Since chlorophyll resembles hemoglobin, so the wheatgrass PR goes, this juice is a great way to "rebalance the blood."

I have no clue what rebalancing the blood means, or why we even need that, but chlorophyll has absolutely no effect on human health. If we were plants, a nice chlorophyll shake would certainly work wonders!

Chlorophyll may share some molecular similarities with hemoglobin
(a protein in red blood cells that transports oxygen from the lungs to other tissues), but it does NOT transform into it, nor does it have any effect -- positve or negative -- on our blood.

And the ridiculous claim keep on coming, folks!

"Wheatgrass has what is called the grass-juice factor, which has been shown to keep herbivorous animals alive indefinitely."

The grass-juice factor? What PR intern came up with that "catch phrase"?

And as for keeping herbivorous animals alive indefinitely -- can someone tell me where I can find one of these timeless creatures subsisting on grass juice?

"Wheatgrass juice is great for constipation and keeping the bowels open. It is high in magnesium."

Apart from the fact that keeping the bowels open doesn't sound very pleasant, wheatgrass is not high in magnesium. It contains absolutely negligible amounts.

If you seek magnesium, reach for nuts, seeds, fish, and whole grains.

The only nutrients wheatgrass offers are protein (at a practically nonexistent 0.5 grams for a 1 ounce serving), some vitamin C (7% of the Daily Value in a 1 ounce shot), and iron (10% in that same shot).

I have absolutely no ideae where some of these wheatgrass companies get their statistics about their product offering vitamins A, B2 (riboflavin), C, D, and K, along with potassium and calcium.


"Wheatgrass helps the body rid itself of toxins."

No. The liver and kidneys take care of that.


Simply put, there is nothing about wheatgrass that can't be found in other fruits and vegetables.

While there is no harm in having it, perceiving it as some kind of miracle beverage is completely inaccurate.


Spinach, broccoli, Swiss chard, and Granny Smith apples are much more nutritious green foods. In fact, the actual wheatberries are much more nutritious than the shoots.


Remember, no one food or beverage meets all nutrition requirements or holds the powerful secret to longevity and agelessness.


Anyone who tells you otherwise is a big old fraud.
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