Showing posts with label lycopene. Show all posts
Showing posts with label lycopene. Show all posts

Friday, May 30, 2014

Slave to the Rind: The War with Watermelon


When one has tasted watermelon he knows what the angels eat.”
-
Mark Twain

As a Registered Dietitian (RD), I discuss food preferences with individuals regularly. Food favorites and aversions can be extremely personal to people, as they are rooted in childhood memories, family tradition, and cultural heritage. These exchanges ideally should be handled delicately and with finesse. And during these exchanges, we may unexpectedly uncover our own long-dormant biases. 

Yesterday, I discovered one of mine. 

I now publicly admit to loathing one of the healthiest foods on the planet: watermelon.  There is no choking incident, childhood seed-spitting torture, or other random trauma with this nutrient-packed fruit in my past, but I have avoided it for decades nonetheless. I will not eat it in its natural state, or in the form of candy, margaritas, juice, gum, or a carved out punchbowl. With all due respect to Mr. Twain’s quote above, I simply do not get it.

When counseling a client recently, this watermelon disdain apparently showed on my face. I blamed it on a fictional toothache, but mentally noted my bias. So, in order to get a grip on this problem of mine, I decided to investigate the benefits of watermelon in terms of dietary intake. 
 
One cup of watermelon provides less than 50 calories and no fat, so clearly we have a weight loss winner with this fruit. Watermelon consists of over 90% water, is low in cholesterol and sodium, and is a good source of vitamins A, B6, and C, as well as lycopene. Vitamin A boosts immunity and maximizes eye health. Vitamin B6 assists with immunity, nerve functioning, and red blood cell formation. Vitamin C is an antioxidant that assists the body in tissue growth and maintenance. The watermelon’s red flesh indicates the presence of lycopene, which may lower the risk of heart disease, macular degeneration, and several types of cancer.
 
There are hundreds of watermelon cultivars, which vary in taste, texture, and color. Not surprisingly, there are recipes for watermelon salads, smoothies, juices, cocktails, sorbets, soups, and salsas, and it can certainly be eaten on its own, or even grilled as “watermelon steak,” though I don’t know from personal experience. 
 
Watermelon is classified as both a fruit and a vegetable. The watermelon is cousin to the pumpkin, squash, and cucumber. (By the way, I adore those three foods to an embarrassing degree.) This relation is evident in elaborate displays of watermelon carving, but even here I admit to preferring the knife artistry involving pumpkins and autumnal gourds over these summer favorites.
 
Recommendations from this Registered Dietitian (RD):
1)    Watermelon has minimal calories, no fat, no cholesterol, and low sodium. With its high water content, it provides hydration along with a stomach-filling effect to promote weight loss. Watermelon is therefore a high-volume food (filling with few calories) and a dieter’s friend.
2)    As with other foods of the same family, watermelon may provoke symptoms of oral allergy syndrome, which is connected to ragweed pollen and can potentially lead to anaphylaxis if left untreated. Contact a healthcare professional if you detect similar symptoms after ingesting watermelon, or other associated foods, such as honeydew or cucumber.
3)    A watermelon’s bitter rind is often tossed away quickly. As one summer option, consider using a pickled watermelon rind (from an organic melon) to serve with grilled hamburgers. Watermelon seeds are also edible, but one cup contains 602 calories, most of which come from fat! (Unlike the flesh of the watermelon, its seeds are not weight loss-friendly.)
4)    Food Safety first! Despite the presence of the outer rind, as with all fruits and vegetables, wash your watermelon in clean, running water before consumption. Also, be sure your knives, cutting surfaces, and most importantly, your hands, are clean before you dig in! 

While I am happy to recommend watermelons professionally as I have above, I am still personally biased. For those of you who enjoy them, please have my portion, and feel free to learn more about watermelons here

To read the full article on my watermelon war in OKRA Magazine, click here.

Friday, June 8, 2012

Cut and Paste (Part III): This RD's Tomato Recommendations

Recommendations from this Registered Dietitian (RD)
1)    An apple a day? Pick a tomato instead. Tomatoes have more health benefits due to phyto-chemical properties (naturally occurring chemical compounds in plants) than the often-referenced apple. In both cases, the fruit’s antioxidant power lies within its skin, so make use of the whole food as much as possible. 

2)    Mix it up. With so many varieties of tomato available, there is no excuse to be boring. Creole, cherry, and heirloom tomatoes are wonderful raw. Toss sun dried tomatoes in with salads and sandwiches. Add Cayenne-Tomato Relish to hot or cold sandwiches. Crave pizza? Double the sauce, cut the fatty meat toppings in half, or substitute them with vegetables. Bring Emeril’s recipe for Stuffed Tomatoes  to your next summer gathering.


3)      Seeing red. When it comes to lycopene content, red pigment is the key, so orange and yellow varieties don’t count. Also, organic tomatoes may contain up to three times the lycopene as non-organic varieties. To maximize your lycopene intake, try this Tomato and Watermelon Salad recipe : red watermelon is another excellent lycopene source. 

4)    Pick your poison. Tomatoes are members of the nightshade (Solanaceae) family, along with potatoes, eggplant, chili peppers, and tobacco. Along with arthritis symptoms, potentially toxic substances in nightshades (glycoalkaloids) can produce symptoms ranging from a burning mouth or tingling tongue to extreme allergic reactions in some individuals. Symptoms of an allergic reaction include itching of the skin and/or eyes, runny nose, chest constriction, and gastrointestinal distress (abdominal pain, vomiting diarrhea).  



5)    KISS up. When choosing a tomato sauce, keep it simple and opt for brands with the few ingredients: tomatoes, garlic, basil, and olive oil. Avoid excess ingredients such as soybean oil or sugar, which can substantially increase calories and saturated fat. 

6)    Down some liquid courage. Sometimes it’s easier to drink your fruits and vegetables (note: one glass of some vegetable juices contains four times the lycopene found in one medium-sized tomato), but always check labels for sodium levels when selecting tomato juices, sauces, and soups. There are nearly as many recipes for tomato soup as there are varieties of tomato. Tennessee’s Patrick and Gina Neely offer a truly decadent Down-Home Tomato Soup using plum tomatoes and heavy cream. For a version with less saturated fat and calories, see Southern Living’s recipe for Basil Tomato Soup.  



Though the heat and humidity of a summer in the South can be unrelenting, grab a napkin and head toward your local farmer’s market to find those Creole tomatoes (or fried green tomatoes, tomato gelato, tomato basil crepes, and so on) and alleviate some of that misery. Your body (and spirit) will thank you for it.

Cut and Paste (Part II): The Dirt



Cut and Pasted: The Glorious Tomato







A serving size of tomato is considered 1 medium-sized tomato, 1 cup fresh chopped or canned tomatoes, 8-10 cherry tomatoes, 1/8 cup tomato paste, or ½ cup tomato juice. One serving of raw tomato provides 32 calories, 0.4 g total fat (0.1 g saturated fat), 2.2 g fiber, 1.6 g protein, 7.1 g carbohydrate, 9 mg sodium, 427 mg potassium, and no cholesterol. Tomatoes are excellent sources of antioxidants, dietary fiber, vitamins, and minerals, which contribute to considerable health benefits. The multiple nutrients found in tomatoes include vitamin A, B-complex vitamins, folate, vitamin C, vitamin K, calcium, chromium, magnesium, phosphorus, iron, zinc, manganese, and potassium. The nutrient-dense tomato is flavorful and beneficial to your health, particularly with regard to heart disease and certain forms of cancer. Flavonoid antioxidant properties in tomatoes help to maintain healthy mucus membranes and skin, vision, and bone health, and also protect against various cancers, including colon, prostate, breast, endometrial, lung, and pancreatic. Like avocados, tomatoes are also a significant source of lutein, which helps to maintain eye health and protect against cancer as we age.

The tomato’s secret weapon to better health is lycopene, which helps to improve cholesterol profiles, lower high blood pressure, and protect men from prostate cancer. Lycopene is responsible for the color of red tomatoes, and its antioxidant benefits (reduction of cellular damage throughout the body) are linked with a reduced risk of prostate, lung, and stomach cancers. Lycopene also prevents skin damage from UV rays and offers protection from skin cancer. Processed tomatoes (canned tomatoes, tomato sauce/paste, and ketchup) have higher concentrations of lycopene because cooking breaks down cell walls; in raw tomatoes, lycopene is bound to cell walls, and processing frees it. Processed/cooked tomatoes contain between 2-8 times the lycopene available in a raw tomato. Better yet? Including a small amount of fat in your diet will increase lycopene absorption. Lycopene is fat-soluble and needs dietary fat for transport to the bloodstream. [Consider serving tomatoes with olive oil, feta cheese, nuts, or avocado.] To maximize health benefits, aim for daily lycopene consumption.

Beverages with tomato are rising in popularity. Though tomato juice may be an excellent alternative to higher sugar beverages such as orange juice, be sure to watch the sodium content. That one glass of V8 may contain as much salt as several small bags of potato chips, so choose from lower sodium tomato juice options. Because so many cocktail mixers are laden with high-fructose corn syrup, preservatives, artificial ingredients, and sodium, a healthier option is the Bloody Mary, which is typically made with pureed tomatoes. Spicy V8 provides 100% juice and less sodium than some competitors, and adds kick to a New Orleans-style “Stuffed” Bloody Mary


All Hail the Queen: Stuffed Bloody Mary

 Low Sodium V8 contains 70% less (140 mg in one cup, about 7 percent of the daily recommended intake of 2,300 mg) than the regular version. Looking to drop a few pounds? Replacing two daily cups of orange juice with Low Sodium V8 can save 840 calories (and about a quarter of a pound) in one week.

Cut and Paste (Part III) continues here...