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Books & eBooks by John LaRosa, How To Guides

Books by John LaRosa,  Marketdata President:


Scam Nation: Fighting The $257+ Billion Epidemic of American Consumer Frauds & Cons - by John S. LaRosa

Print copy: $16.99   e-book: $6.95  Sold via and Marketdata website

Click below to listen to an interview with author, John LaRosa


Scam Nation reveals how con artists and scams have grown exponentially in America since 2000, due to the growth of the Internet and an economy that hasn’t produced enough good jobs. The book pulls back the curtain on the largest scams, how they work, and how consumers can avoid them. It also, for the first time, quantifies the staggering annual costto consumers – between $257 and $337 billion.

Americans are being scammed in record numbers—by phone, in person and online. And, the con artist is just as likely to live in Nigeria as in Kansas City. Scam Nation examines Medicare/Medicaid fraud, bogus tax returns, traveling gold buyers, Ponzi schemes, psychics, romance scams, car title and payday loans, identity theft, credit repair, worthless diet supplements, multilevel marketing, home improvement contractors, tech support scams, work-at-home jobs, fake charities, and more.

“The reader may think that there are other nations where frauds, scams and cons are more prevalent and ingrained into society than in the United States—such as Russia, Mexico or Nigeria, for example. This is not the case. Due to the number and types of scams, and the dollar magnitude of losses, America has become the true “scam nation”.


John LaRosa, MBA, is the President and Head Consultant of Marketdata LLC, a 38-year old market research publisher and consulting firm that has published more than 500 in-depth industry and market studies, focusing on service sectors. He has helped Fortune 500 companies, start-ups, investors and entrepreneurs with business plans, marketing plans, market potential studies and competitor analyses. Mr. LaRosa’s research is always unbiased and objective, and he has a strong desire to expose the unscrupulous. His research has been used and cited by all major media and Mr. LaRosa has appeared on FOX, ABC, CBS, CNN and BBC TV. He hosts frequent webinars and teleconferences and is a speaker at various trade associations.


A Dieting e-book:

The Common Cent$ Diet For The Busy Girl, by John LaRosa & Susan Burke March, RD  ($2.99)

       Simple Do-it-Yourself Weight Loss

Two leading weight loss experts, Susan Burke March, Registered Dietitian/Author/Consultant, and John LaRosa, a leading 22-year analyst of the weight loss market, have co-authored a new 115-page e-book entitled: The Common Cent$  Diet For The Busy Girl: Simple Do-it-Yourself Weight Loss.

Healthy weight-seekers can choose from hundreds of weight loss programs and products to choose from – each claiming to have “the secret” to easy and quick weight loss. Consumers have seen it all—from the most ridiculous fad diets to mail order pills and potions, to infomercials, to multi-level marking distributors--you name it.

The authors questioned why many of these weight loss programs are so complicated, cumbersome and expensive, and are not sustainable over the long term. Dieters know that, and have tried dozens of plans and diet books, each with their own twist on nutrition and sometimes improper balance of fat, protein and carbs.

It doesn’t have to be this way. How about a weight loss program that might otherwise cost hundreds of dollars, complete with website support, for $2.99?  There IS a simpler and less expensive “diet” plan or lifestyle one can choose, as revealed in The Common Cent$ Diet.

Frozen entrees have come a long way since the TV dinners of the 1960s, but not all are created equal in terms of nutrition and taste. The authors based this plan on “healthy” brands that are lower in sodium and calories, yet taste great. All can be prepared in 6 minutes or less, making this program perfect for working women.

The authors show you how to choose from popular healthy food brands, including: Weight Watchers, Lean Cuisine, Healthy Choice, Kashi, Amy’s, and more. This flexible plan includes a customizable fresh breakfast, plus lunch, dinner and snacks each day. You get your own exercise program as well—an important factor in healthy weight loss. The regular menu contains no more than 2000 mg of sodium/day and the lower-sodium plan limits it to 1500 mg/day – much lower than the government-recommended maximum of 2200 mg/day.

Recent research shows that 80% of dieters want to lose weight on their own. With no fees required of any kind – ever – this home-based, personalized, convenient and affordable  plan provides safe, nutritionally balanced weight loss. The plan can be used indefinitely, losing 1-2 pounds per week…without feeling deprived or depleting one’s pocketbook.

“Common sense, and common cents!  Yes, besides convenience, and portion control, a frozen entrée menu plan means easily budgeting your diet and having some left over for treats such as a new pair of running shoes or a spa visit.”, according to the authors.

The Common Cent$ Plan Has NO:

  • Counting daily points or calories
  • Purchasing expensive “diet foods”  or supplements
  • Traveling to a weight loss center for meetings
  • Registration fees or contracts
  • Ongoing weekly or monthly fees
  • Injections, prescription drugs, or diet pills.

Free Bonus With e-book Purchase:  Access to a supporting website :,  which includes:

  • helpful articles and videos
  • tips for online dieting
  • weight loss tools and calculators
  • the latest weight loss market and company news and diet surveys
  • daily weight loss blog by John LaRosa and Susan Burke March.

The e-book Includes useful information on:

  • Are you the typical dieter? Why our diets fail. How often we diet. What do dieters really want?...
  • The real cost of dieting: program types, commercial chains, medical programs, diet websites, health clubs, celebrity diet books, residential facilities....
  • Detailed Meal Plans: 14-day meal plan and low-sodium 14-day plan, snacking strategies using low-cal, low-sodium frozen microwave meals by Healthy Choice, Lean Cuisine, Weight Watchers, Kashi, more…
  • The problem with many diet programs: high pressure sales, misleading costs, poor counselors…
  • Do-it-yourself pitfalls/dangers: acai berry drinks, meal replacements, retail diet pills…
  • Making it work Why use frozen entrees: sodium, your BMI (body mass index), concept of The Common Cent$ Diet, snacks, budgeting, smart couponing, food labels/shopping guide…
  • Common Cent$ fitness: importance of exercise, how to get started, home exercise equipment, gyms and deals, great exercise videos…

 About The e-Book:    The Common Cent$ Diet For The Busy Girl: Simple Do-it-Yourself Weight Loss, published in October 2011, is an e-book that costs only $2.99 and is available for purchase in the Kindle format at


                                       How-To Guides by Marketdata:

How To Start A Profitable Weight Loss Business - 199 pp. Guide - Aug. 2010  $89 (Report FS35)

Complete 199-page Guide for starting and running a SUCCESSFUL weight loss business, written by the President of Marketdata, John LaRosa, MBA, a 21-year consultant to and analyst of the U.S. diet market. Newly updated and expanded 2nd edition incl. mid-year 2010 mkt. update/forecasts plus 8 New interviews with successful weight loss franchisees/top managers/center owners/consultants/book authors. Covers: creating diet websites,diet books,diet centers,diet food delivery services,MLM reps,franchising,management,advertising,ad networks,affiliate programs,how to monetize website traffic,start-up costs/earnings,more. What works/fails,case studies. Simply the most complete guide and insider's view ever written about succeeding in the weight loss business.

How To Get Into The Self-improvement Business, 82 pp., March 2015  $79 (Report Number: Selfguide)

This 80-page Guide provides a complete status report of the self-improvement market, it's $ value and segments,plus in-depth discussions of steps/actions one must take to become an expert in this field. What products/services an SI guru must have. How to create a website,perform webinars & teleseminars,write a book,get speaking engagements,create a YouTube channel,set up a merchant credit card account. Steps to start out in personal coaching and motivational speaking. Estimated start-up costs by kind. Covers markets for: motivational speaking,personal coaching,self-improvement books & audiobooks,infomercials,holistic institutes,training organizations,online mastery courses,weight loss programs. The ONLY 'how to" guide for starting a self-improvement business and career.

How To Set Up A Lucrative Medical Weight Loss Program, 230 pp June 2016 Price: $995 (Report FS56)

Complete "How To" Guide for launching & running a successful medical weight loss program. Suitable for investors, MDs, Physicians' Assistants, Nurse Practitioners, Dietitians, Hospitals & Clinics who want to add weight loss to their practice. Your don't HAVE to buy a franchise for $150K - $400K--there IS a much less costly option. Includes admin. forms, contracts, advice by industry experts/consultants, referrals to ad agencies, IT consultants, etc. Topics: Reality Check for MDs, Success Criteria, Diet Market Outlook, Competition, Program Components, Pricing, ACA’s Preventative Care Benefit Opportunities, What Dieters Want, Franchises & Other Models, Start-up Costs, Retail Clinic Set-up & Layout, Procedures Manual, Staff Recruitment & Salaries, Operations, Revenues & Profits, Bookkeeping, Marketing Methods, Counselor’s Role & Quality, Case Studies of Successful Medical Weight Loss Chains, Creating Meal Plans, Private Labeling of Meal Replacements, Using Prescription Obesity Drugs, Using Supplements, Strategy of Diversification.