How do you work out a nutritional comparison between a beer and a Bloody Mary? What's the difference between kosher salt and seaweed salt? What is a grit? How much potassium in a tequila sunrise? CNN Plus, a new World Wide Web site from the same television outfit that brings live news from around the world into our houses, is also a treasure trove of information about food, nutrition and health. The food section of the site is divided into about 14 subsections, entitled food additives, beverages, dairy, fat, fruit, grains, herbs, Italian, organic, vegetables, and vitamins and minerals. Facts and figures range from titbits (the gourmet salt trend) and trivia (156 calories in a Martini) to facts at a glance (what foods have the most caffeine) and full feature articles (the effects of vitamin E on sufferers of Parkinson's disease). CNN is promoting the site as a news and information resource for 'families, students and news junkies'. The Web site (CNN Plus) can be accessed via cnn.com/plus and is free at the moment, although CNN hopes eventually to charge a subscription fee. Catch it while you can. A good night out if you have $4,500 to spare At HK$4,500 per person plus 10 per cent service charge, the Regent is quite right to bill its dinner, at Plume, right, next Thursday, as 'exclusive'. For a single evening that would keep starving refugees in grain for months, diners will feast on Boston lobster, quail and goose liver, braised oxtail, and fine French Ceneri cheeses. Dessert is a frozen whisky souffle with ginger-flavoured blood-orange ragout. Dinner will be accompanied by the wines from Chateau Le Pin (Pomerol 1994 and 1989), Chateau Labergorce Zede (Margaux 1990), Vieux Chateau Certan (Pomerol 1989 and 1983) and Salon Cuvee Le Mesnil-sur Oger (1983) Champagne. The Regent says Chateau Le Pin bottles the world's most expensive wines. Thirty-year-old Glenfarclas Single Malt Scotch Whisky will complete the evening. Chateau, salon, and distillery owners will be guests of honour. Reservations on 2721-1211 ext. 2256. From bottom of the harbour to the tabletop The seafood bargain basement of the moment is the Tenderloin Meat Co, celebrating the advent of summer with 'bottom of the harbour' discounts. Boston lobsters cost $25 each, which owner Scott Fuller says is a price cut of $60. Norwegian salmon sell for $170 a kilogram, down $110 a kilo from the regular price. Thai black tiger prawns go for $135 a kilo, saving customers about $70 a kilo. The catch is that the discounts are available only with orders between $400 and $600 of regular, non-discounted deliveries. Inquiries on 2877-2733. Mama knows best, just eat your soup. . . The traditional Jewish solution to all life's ills - chicken soup - is looking even better as a cold remedy since researchers have linked the use of decongestants with strokes. A preliminary report of a two-year study at the University of Pennsylvania Medical Centre has found that extended use of the decongestant pseudoephedrine may increase the risk of strokes. This is because pseudoephedrine may constrict blood vessels not only in the nose but in the brain as well. . . . and the leftovers are tomorrow's lunch Like McDonald's, baseball, and fireworks on the Fourth of July, leftovers have become an American cultural icon. According to a study on eating habits in the United States, more than one in 10 main meals consists of leftovers. This is an increase of almost 30 per cent in the past decade. If they are going to bother preparing meals at home, cooks apparently feel their efforts are too valuable for one meal only and therefore stretch it out. Americans are also serving fewer vegetables (43 per cent, as against 50 per cent of meals 10 years ago), more potatoes (28 per cent, 23 per cent in 1987) and fewer salads (16 per cent, down from 19 per cent).