Stock Quotes in this Article: HAIN, WFM, TFM, GNC, BNNY

MILLBURN, N.J. (Stockpickr) -- With obesity, diabetes and heart disease on the rise in the U.S., consumers are getting the message, seeking out healthier foods and diet supplements.

The companies that stand to benefit range from food producers and processors to supermarkets to specialty retail and weight-management programs.

With that in mind, here are five stocks that will keep you fit and your investment account healthy.

Whole Foods

Whole Foods (WFM) might not be one of the largest supermarkets in the nation, but it is amongst the fastest-growing. The company is also the largest publically owned chain that exclusively sells natural and organic groceries and fresh food.

The company has locations in 39 states and the District of Columbia. Whole Foods operates 310 stores and 10 distribution centers in the U.S., Canada and United Kingdom. Sixty-seven of the company’s stores are concentrated in California, and only 15 reside outside the U.S.

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For comparison's sake, grocery chain Kroger (KR) has about 2,400 stores, and Safewy has about 1,700, but those chains can’t compare to Whole Foods in terms of quality. Other high-end and natural/organic supermarkets include Trader Joe’s, with about 350 stores in 31 states, and The Fresh Market (TFM), with 115 stores concentrated in 21 states.

As you can see, there is ample opportunity for Whole Foods to grow. Check out its past and projected sales and earnings growth:

Should the company begin to ramp up expansion, and I believe that it will come 2013 and 2014, then Whole Foods would be the stock to own for the next decade.

The Fresh Market

The Fresh Market (TFM) is a smaller competitor to Whole Foods in the organic and natural foods business, and in that respect, the company also makes a compelling investment. But TFM's estimated growth rates -- 17% for sales in the current year and 18% in the following year, and 21% for EPS in the current year and 25% in the following year -- could make it an even more compelling investment.

There is another factor worth considering. Several years ago, in 2007, Whole Foods purchased a smaller competitor, Wild Oats Markets, for $700 million. The market capitalization of The Fresh Market is $2.5 billion. While I am not saying that Whole Foods would acquire The Fresh Markets, it is quite conceivable that one of the larger domestic national supermarket chains or an international chain seeking to get into the organic and natural food retail business could.

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Hain Celestial

Hain Celestial (HAIN) is a producer of natural and organic foods and personal care products, including such brands as Terra, Celestial Seasonings, Health Valley, Earth’s Best, Casbah Foods, DeBoles Pasta and Hain Pure Foods. In addition, the company has a line of gluten-free foods, which is increasingly important as diagnosis of celiac disease is on the rise. The company has also purchased several lines of products for distribution in Europe.

Hain Celestial has grown over the years both from organic sales growth (pun intended) and through small incremental acquisitions. There is no doubt that the healthy and organic foods and personal products businesses are growing much more rapidly than conventional food sales.

Hain Celestial is one of the largest suppliers to the Whole Foods chain of supermarkets. While one’s first instinct would be to buy Whole Foods or The Fresh Market as I mentioned above, Hain Celestial also supplies products to the traditional supermarket chains, so the company can and does benefit additionally from the sale of its products to end users who might otherwise not shop at the high-end organic retailers.

Hain Celestial has also begun to accelerate sales and earnings growth. For the fiscal year ended June 2012, earnings are expected to grow by 28%, and sales are expected to surge 30%. In its 2013 fiscal year, earnings per share are expected to rise 16% and sales are expected to increase 14%. The stock currently sells at a 26 times current year’s earnings per share, which is modest compared to the implied growth rates.

Annie's

Annie’s (BNNY), the California-based manufacturer of organic and natural foods with the bunny rabbit logo, recently went public. When the stock was sold to the public, it quickly surged and closed nearly $17 above its IPO price of $19 on the first day of trading.

Annie’s may appear to have a rich price-to-earnings multiple of approximately 70 and a high price-to-sales ratio of about 5, but I am willing to overlook these facts, at least right now. The organic and natural foods business is one of the fastest-growing businesses in the country. I expect that to remain the case for many years to come.

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When I look at Annie’s just after its IPO, I see an opportunity that was presented to investors many years ago by companies such as Whole Foods and Hain Celestial. Annie’s, however, is at a much earlier part of the growth and earnings cycle than those more-established companies. It is worth noting that WFM and HAIN are still enjoying supernatural growth rates.

By the way, HAIN is never shy about reaching into its pocket and buying a company. Another stock worth recalling is American Italian Pasta. That company grew rapidly several years ago and then was acquired by Ralcorp (RAH) at a premium price in 2010.

As a public company, Annie’s can expand more rapidly now that it has more ready access to the capital markets. The company generated about $20 million from the IPO proceeds with the rest of the total $95 million in IPO stock being sold by shareholders.

GNC Holdigns

GNC Holdings (GNC) is a retailer of health and wellness products such as vitamins, minerals and supplements. The company primarily sells its products in branded retail locations, many of which are located in shopping malls, Rite Aid (RAD) stores and over the internet.

As a result of Americans' poor eating and exercise habits, their bodies require many of the products that GNC offers. Athletes will also use their product to help bolster sports nutritional requirements. Doctors are increasingly suggesting that their patients augment prescription medications with supplements and vitamins as many pharmaceuticals or diseases will deplete the body of essential vitamins and nutrients.

The company went public just over a year ago at $16 and now sells at around $40. In that short period of time as a public company, earnings have bettered analysts’ estimates by a wide margin each of the three reporting periods. Gross profit margins are consistently generated at just over 36%, which is quite strong. Furthermore, GNC has generated long-term same-store sales growth.

GNC is expected to grow earnings per share by 27% in 2012 and then another 16% in 2013. The stock currently sells at 19 times current year’s estimates which is quite reasonable given its earnings history and forecasts.

-- Written by Scott Rothbort in Millburn, N.J.

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At the time of publication, author was long HAIN.

Scott Rothbort has over 25 years of experience in the financial services industry. He is the founder and president of LakeView Asset Management, a registered investment advisor specializing in customized separate account management for high net worth individuals. In addition, he is the founder of TheFinanceProfessor.com, an educational social networking site, and publisher of The LakeView Restaurant & Food Chain Report. Rothbort is also a professor of finance at Seton Hall University's Stillman School of Business.