Research round-up - November 2010

Photograph by Lisa Hubbard

Purple Potatoes and their Phenolic Composition

Nov 2010: According to preliminary research at Queen Margaret University in Edinburgh, Purple Majesty potatoes have 3x has much antioxidant capacity as white potatoes. The purple potatoes contain anthocyanins, a flavanoid found in red and purple fruits such as blackberries, blueberries, red cabbage and red grapes. These potatoes were developed at Colorado State University in 2006 as a cross of original varieties of potatoes. They are not genetically modified. The study showed "peak plasma antioxidant capacity at 1-2 hours post consumption".

Dana's comment: the Purple Majesty taste as beautiful as they look. They mash well, are wonderful as potato wedges and are very appealing to children. The potatoes are available all year round. Union Square Greenmarket sells them as does Eataly. Check out Bon Appetit's Ceaser Potato Salad recipe.  For a healthier version, use 2 tbl of olive oil versus 1/4 of a cup and skip the parmesan cheese. You won't notice a difference in taste.

Blueberry Supplementation Improves Memory

Nov 2010: Researchers at the University of Cincinnati identified that drinking 2 1/2 cups of wild blueberry juice daily improved memory test scores (paired associate learning and word list recollection) after 12 weeks. There were also trends suggesting reduced depressive symptoms as well lower glucose levels. The researchers concluded “the findings of this preliminary study suggest that moderate-term blueberry supplementation can confer a neurocognitive benefit".

Dana's comment: Blueberries, like the purple potatoes, contain anthocyanins, which are associated with improved signaling in the brain. Wild blueberries contain more of the anthocyanins than cultivated blueberries. Look at for wild blueberries in the frozen section of the supermarket. Add them to a breakfast smoothie or snack on them with a dollop of Greek yogurt, but don't confine yourself to just blueberries, experiment with blackberries, red grapes and red cabbage. Antioxidants work synergistically together and the greater the variety the more powerful the impact. Remember, we are still discovering new polyphenol compounds so just because a food has less of one compound does not mean that it is inferior - the compound is likely to be discovered in the future.

High Protein - Low Glycemic Diet is Better for Weight Maintenance

25 Nov 2010: A large scale study funded by the European Commission, looked at 5 different dietary approaches for weight maintenance following a mean 11kg weight loss. All maintenance options had the same calories. The low-protein–high-glycemic-index diet was associated with subsequent significant weight regain, while the low glycemic and high protein diets saw a continued decrease in weight.


Dana's comment: A calorie is not just a calorie and it's a travesty that this dogma continues to be espoused. Controlling your weight is about regulating the hormones that influence weight loss. If you eat a high glycemic diet (think rice cakes, bagels and pasta) you cause a surge in insulin which triggers fat storage and inhibits the oxidation of fat. Eat a moderate amount of clean protein and get the vast majority of your carbohydrates from vegetables. It is this combination that stimulates the hormone glucagon which encourages fat burning and satiety.

Eataly - A Food Lovers Orgy

I've had more quickies with Eataly than Don Draper had in Season 2. Admittedly, the vicinity of my office to this Italian gastrodome compels me to sample every delectable morsel. I've indulged in 'dirty' one month aged parmesan cheese; wrapped my finger around 5 different types of San Daniele prosciutto; thrown back shots of warmed hazelnut chocolate and bitten into chewy Italian bread with the gluttony of a recovered celiac.

But these culinary experiences are not why I am salivating. I could fly to Rome for a weekend or eat at any one of Batali's eight New York restaurants and experience the same sensory pleasures. Eataly is much more enlightening than that.

Eataly smashes together two incongruous philosophies, commitment to everything Italian and commitment to everything local, sustainable and seasonal. I'll leave it up to the foodies to debate the success, but as a nutritionist who loves to eat and is an advocate of the green movement, Eataly kicks the Greenmarket and Wholefoods off its smug 'green' pedestal. It offers local produce in one small area (no more traipsing around Union Square for the perfect apple), it is cheaper (yes, who would have thought), you can pick up olive oil that is so grassy you'd think it had been infused with medicinal marijuana, you can buy beef from the same supplier as Minetta Tavern's famed black label burger AND it offers a concierge service that only Jetcard carrying moguls are used to - the Vegetable Butcher!

The Vegetable Butcher will prep, clean, scrub and chop your vegetables. I've had onions diced, bell peppers sliced, fava beans shelled and carrots peeled and julienned. The cost - it's free! And what a brilliant idea for Batali. Use your sous chef's downtime to stimulate more spending and get kudos for encouraging Americans to eat their greens; perhaps Batali should start consulting to the White House.

Vegan for 21 Days?

That's exactly what the Physicians Committee for Responsible Medicine would like you to do. This Labor Day marks the start of their 21 day Kickstart Campaign where vegan meal plans and recipe ideas are sent to the subscribers. The Committee estimates ~30,000 people will participate. As most of you know, I'm protein, protein and more protein, but I do recognize the potential health benefits and reduced carbon footprint of a vegan diet provided it is fruit, vegetables and vegan protein not vegan cookies, pasta and pizza.

Could I do 21 days? It would be a challenge, but I could commit to one day per week for 21 weeks (yes, it's cheating but it's a start!). I've listed my top five downtown vegan restaurants for their culinary choices and vibe that's more 'Gwyneth' than San Francisco environmentalists.

Organic Avenue - 116 Suffolk Street and 43 8th Ave (between Jane & Horatio). Known for it's organic juice fasts and raw food this is a 'pick-up' joint versus cafe. Ideal for grabbing freshly pressed green juices, coconut water and almond "mylk" smoothies. Their kale salad and chia tapioca have inspired some of my own recipes. What's Cool: All products are organic. If they can't get organic they don't make it. All juice bottles are recyclable. What's Not: The $350 price tag for a five day juice fast, the $2 deposit for each juice bottle and the $20 delivery charge. But if you have money to burn or live locally, Organic Avenue's juice and food products are a great addition to a healthy eating regime.

Bonobos - 18 East 23rd Street. Organic and raw food salad and 'burger' bar ideal for a quick lunch. Raw salads packed with greens, cabbage, sprouts, carrots and beets and drizzled in a sweet basil dressing and topped with sea vegetables that makes you feel like a nutrition goddess. Their coconut bell pepper soup is exquisitely silky and delicious. What's Cool: House-made coco chai - fresh coconut milk blended with Indian chai spices. Beats a shake shack milkshake any day. What's Not: Scoop too much of their nut meat on your salads and you'll be adding in more calories than a Big Mac (of course, the calories are far better for you).

Pure Food and Wine- 54 Irving Place. The pioneer of the haute cuisine raw vegan food movement in the city. Think heirloom tomato and zucchini lasagna; beet ravioli with pistachio cream and salsify noodles with almond butter sake and oyster mushrooms. There is no gluten, tofu or seiten on the menu (ie no fake meats). What's Cool: Organic sake on tap and drinking a Tamarind infused martini in the garden on a balmy Summer evening. What's Not: The Chelsea Market outpost is always out of wheatgrass Saturday afternoons.

Eataly Vegetarian 'Restaurant' - 23rd and Fifth Avenue. Part of Mario Batali's new gastrodome, Eataly. The vegetable 'restaurant' is designed to showcase seasonal fruit and vegetables, principally sourced from local farms. The menu is small but exquisite. The mushrooms sauteed in olive oil and served on toasted polenta are to die for. The warm vegetable salad will be a staple of the health conscious, yoga matt carrying downtowners (or those aspiring to be). Admittedly this may be vegetarian not vegan but on my two visits there was no dairy in sight. What's Cool: Unpretentious, no reservations required. One can turn up in gym gear and still feel welcome. What's Not: It's a mosh pit. This extremely busy and bustling bazaar usually means a 10 minute or more wait for a table (to be fair, they turn quickly) or gather with the vultures waiting for a stool at the bar.

Angelica Kitchen - 200 E 12th street - it's been around longer than two NYU students but this organic vegan restaurant continues to be one of the most influential restaurants in the city. It is the 'farm to table' restaurant using ingredients harvested less than 48 hours ago. Menus change daily with dishes such as tomato saffron broth with yukon potatoes, fennel and leeks, corn bread with miso tahini and Moroccan spiced dressing over organic vegetables and brown rice. What's Cool: It's BYOB (how rare in the city) with no corkage fee and you can feel extra smug that you are helping local organic farmers. What's Not: Cash only and forgetting to BYOB.

Others of note: Organic Grill; Blossom and Snice.