• What to do After a Food Binge

    Wednesday, June 13, 2018

    You vowed to order stay away from your husbands Ben & Jerry’s ice cream but you couldn’t stop thinking about it after he went to bed. One teaspoon led to devouring the whole pint. Or maybe you spent the weekend…

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  • Does Collagen Protein Improve Skin, Joints and B...

    Monday, May 21, 2018

    Collagen supplements are a HOT topic. Proponents of collagen claim it’s the ideal “anti-aging” supplement and can improve skin, bones, joints and hair and as well as gut health. It’s consumed as supplements and is added to shakes, coffee and…

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  • Alzheimer’s Disease is the New Type 3 Diabetes...

    Tuesday, May 15, 2018

    We all know someone that has suffered from or has had a family member suffer from Alzheimer’s or Dementia. It’s often considered to be part of aging or due to bad genes, but what if some Alzheimer’s and Dementia can be…

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Why You Should Restrict the Hours You Eat

I don’t like to use the word restrict … but I’m going to in this post! We’ve come a long way from the old Food Pyramid when it comes to the field of nutrition. There are so many interesting areas to explore aside from protein, fat and carbs. Obviously the types of foods we eat, as well as the quantity, play an important role in health. But new research is showing that the time we eat as well as number of hours you eat in a day (called time restricted eating)  play a role in health – including your weight, risk of diabetes, heart disease and even cancer. And you probably guessed – most of us eat too many hours in a day. I find this research fascinating and believe that we are only at the tip of iceberg in what we know about it. I’m certainly going to give time restricted eating a try!  I’m going to break this down into 2 blog posts. Here is the first one:

What time you do you take your first bite of food in the morning and your last bite of food at night (yes – even that one bite of ice cream counts)? 50% of people eat within a 15 hr window. So that could mean breakfast at 8 am and your last snack at 11 pm. That’s a lot of eating time! But this isn’t the way our bodies were made to function. Think about how your ancestors ate – maybe within a 6 hour time frame at best. They woke up with the dawn light, searched for food, ate if they were lucky, then went to sleep when the sun set. No Skinny Pop or Halo Top at 10 pm. Studies are showing that our bodies need time without food to perform important functions.

First – a little background on circadian clocks
Time restricted eating research is based on circadian clocks so it helps to have a basic understanding of your clock.
Light and the clock

We all have an internal clock that regulates a wide variety of processes including sleep/wake cycle, metabolism, repair of tissues, secretion of hormones, activation of genes, how active we are and more. Early morning light starts the clock and darkness starts to shut it down. The master clock regulator is deep in the brain. But every organ (i.e. the liver, heart, brain, gastro-intestinal tract) has it’s own clock! Certain processes happen when the clock is turned off and others when it’s turned on. This clock goes haywire in night shift workers because they are up (and eating) with they are supposed to be sleeping. Numerous studies have shown that shift workers have increased rates of obesity, heart disease and cancer in part due to an unhealthy circadian clock.

Food and the clock
Until recently, it was believed light was the only regulator of the circadian clock. But food has also been shown to turn the clock on. The first bite of food in the morning or even cup of coffee with milk (black coffee is debatable!) starts this clock. So if you start eating or drinking at 8 am and have your last bite at 9 pm or later, your clock is running for a long time. This doesn’t give it the time it needs to perform various functions. For example, just the act of eating food and having to metabolize it causes damage in the body by secreting free radicals. The body repairs itself during fasting time – especially fasting at night when you are supposed to be sleeping! 


What is time restricted eating (TRE)
Just like what it sounds – you restrict your eating into a certain time period – usually 8-12 hours in a day. It only refers to the time you eat, not what or how much. So for example, having breakfast at 9 am, dinner at 7 pm (and lunch and snacks whenever you want) would be a 10 hr TRE.


Podcast on time-restricted eating (TRE)
One of my favorite podcasts is Found My Fitness by Rhonda Patrick, PhD. She is a scientist and researcher who talks about REALLY interesting topics and breaks it down for us non-scientist people to understand. To get a better understanding of TRE, I’d recommend that you listen to these 2 fascinating podcasts with her guest Dr. Sachin Panda. Dr. Sachin Panda is a professor at the Salk Institute for biological studies where he researches the circadian clock and does extensive research on TRE. Here are the links to these 2 podcasts as well as the show notes:

1. Time Restricted Feeding and It’s Effect on Obesity, Muscle Mass, Heart Health    

2. Practical Implementation of Time-Restricted Eating & Shift Work Strategies

 3. Show notes for the 2nd podcast.

Bottom line:
In order to function optimally, your body needs more time with its clock turned off.  Dr. Panda’s research has shown that animals that are restricted to eating within a 9 to 12-hour window have improved glucose metabolism, improved lipid profiles, improved cholesterol,  increased lean muscle mass, decreased fat mass, decreased fatty liver, and favorable gene expression patterns.


Stay tuned for my next blog post to learn more about time restricted eating, including studies, tips to get started and how to take part in a research project. 





9 Tricks to Tame Your Carb Cravings

 If bread, pasta or chocolate calls your name, you’re not alone. Carb cravings are one of most common complaints I hear from my patients.. There are many reasons for these cravings. Some studies are suggesting certain foods, often carbs, light up hedonic centers in your brain, causing more cravings. And there are a host of other potential causes. The good news is that there are ways to outsmart these cravings!


Here are some common scenarios that may lead to carb cravings and tips to control them:  

1. Having sweets in your environment can give you “sugar brain”. I call foods that set off more cravings  “trigger” foods.  It’s been shown that in certain people, high sugar, high fat foods activate a center in your brain what will cause you to want more of them. Trying to fight this by “being more disciplined” often doesn’t work. You’ll only end up beating yourself up … which can lead to even more eating.    Reference
Tip: Rather than trying to “improve your self-control”,  focus more on “reengineering your food environment.” Avoid keeping these tempting foods in your home or office.  Ask your family or significant(s) other to keep them out of the house or buy a flavor you don’t like. If they must be in the house, at least hide them. Avoid the candy on your co-workers desk …. don’t even start!

2. Going too long without eating.
This will lead to low blood sugar which will increase the urge to
 eat carbs. I doubt many of you crave broccoli when you haven’t eaten for 8 hours! My guess is that you would be looking for something starchy or sugary.
Tip: Eat meals at regular intervals. Plan a healthy snack for in between meals. Carry this snack with you if you’ll be on the road.


3. Consuming too many processed low fiber carbs. Foods such as white rice, white bread, sweets and other sugary food are low in fiber and have a high glycemic index. Eating high glycemic foods (especially larger portions) can cause a quick spike in blood sugar, followed by a quick drop. This stimulates  a spike of insulin, followed by increased hunger and can cause the urge to eat more carbohydrates.
Tip: Stick to whole grains and high fiber foods as much as possible


4. Not eating adequate protein at meals. Eating meals that contain only carbohydrate (i.e. a jumbo bagel, big bowl of pasta or frozen yogurt with granola) will cause a rapid rise of blood sugar, followed by a spike of insulin, then a crash of blood sugar. This can exacerbate cravings. Protein helps to slow digestion a bit and keep you feeling full long.
Tip: Try to include a protein source at meals and snacks. Protein sources include: meat, fish, poultry,  eggs, nut and nut butters, and dairy products. Note: not all women  with PCOS choose to consume dairy – but if you do, the best choices would be organic and fermented like yogurt – especially plain Greek yogurt).

5. Not eating adequate fat at meals.
Many of my clients are still fat phobic (maybe leftover from the Food Pyramid?) and will go out of their way to avoid eating fat. But this isn’t a great idea as following a diet too low in fat can exacerbate cravings.
Fat takes a long time to digest, helps to prevent rapid peaks and drops of blood sugar and helps keep you full longer. Of course, the key is not to overindulge in fat as loaded with calories if you 

Tip: Add a little olive oil to your salad, peanut butter to your morning toast and avocado to your salad.


6. Taking your caloric intake too low. When your consume too few calories, your hypothalmus produces extra NPY (neuropeptide Y),  a chemical messenger that encourages you to eat more carbohydrates. In addition, the hypothalmus secretes another chemical called galanin which increases cravings for foods rich in fat and carbs. Take home message: eating too few calories = cravings for high carb foods.
Tip: Don’t go below 1200 calories (and even higher for most people).


7. Getting inadequate sleep. Sleep affects hormones that regulate satiety, hunger and how efficiently you burn calories. Too little sleep can lower levels of leptin and raise levels of ghrelin, which can increase
hunger for sweet and/or starchy foods.
Tip: Get adequate sleep! Turn off the computer and tv at least an hour before bed. Ideally try to read before going to sleep. This helps to “shut you down”. Stay tuned for more sleep tips in an upcoming post.


8. Consuming inadequate carbs, especially if you are an active person. Low carb diets are mainstream these days. While they may work for some people, others  feel exhausted. Exercising on a regular basis and not consuming adequate carbs can cause you to have powerful carb cravings as well as low energy levels. This is because carbs are the major fuel used by exercising muscles. Your body likes to keep your energy stores full of energy (called glycogen). If you exercise on a regular basis and don’t eat enough carbs, your body may go into “carb seeking mode” as it tries to replete its glycogen stores. In addition, you will likely find your energy levels plummet.
Tip: My carb recommendations very widely depending on the person, however aim for at least 4 servings of carb rich foods a day (includes fruit and grains). Very active people may need significantly more than this.


9. Having high stress levels. High levels of stress can cause chemical imbalances in your body.
Cortisol is produced by the adrenal glands in your body when you are under stress. Cortisol will increase production of a neurotransmitter called neuropeptide Y, which as I previously discussed, can increase cravings for sweet or starchy foods.
Tip: Find an activity to do that relaxes you or at least takes your mind off stressful thoughts. Try getting a massage, taking a bath, reading a book, taking a walk or going to the gym, taking a yoga class, practicing meditation – or any other pleasurable activity that doesn’t have anything to do with food.


Bottom line
If you experience frequent carb cravings, I’d recommend you play detective! Keep a food journal for at least a week. Record what you eat, the time, how much sleep you got, what you did for exercise along with any emotion you felt before you had the craving. You’ll likely be able to figure out what caused the craving and come up with a solution!

Read my previous posts on Eating Triggers and How to Control Them 


I’d love to hear about your carb cravings and help you brainstorm ways to beat them!

City Girl Bites: Healthy Bites

5 Nutrition Pitfalls of Women with Quick Fixes

Wednesday, May 9, 2018
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Friday, February 16, 2018
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Why I’m Obsessed with Poke Bowls

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Why You Need Prebiotics for Health and What Foods Contain Them

Thursday, August 24, 2017
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