Contraindications

What conditions would absolutely PROHIBIT my use of a low calorie diet such as Medifast?

Myocardial Infarction (MI) / Heart Attack within previous 3 months (unless cleared by a cardiologist)

Recent or recurrent CVAs and/or TIAs, stroke; uncontrolled seizures

Unstable angina, clotting disorders

Type 1 Diabetes (can be used for improved nutrition or weight maintenance but not recommended for a weight loss program; can add Medifast Meals to regular dietary intake)

Severe liver disease (may require a low protein diet)

Severe kidney disease

Active peptic ulcer disease

Active cancers

Active Thrombophlebitis (DVT/PE within 3 months)

Pregnant or lactating

Eating disorder such as Anorexia Nervosa or Bulimia

Severe psychiatric disturbance (history of major depression and/or suicide attempts)

Corticosteroid therapy >20 mg/day

Chronic illicit drug usage; addictions; alcoholism; substance abuse

What conditions could LIMIT my use of Medifast products?

Certain conditions may necessitate close supervision by your physician. Please check with your physician prior to starting the Medifast program if any of the following conditions apply:

Use of the medication Lithium (your physician may wish to order laboratory blood tests to determine lithium levels while on the program)

A history of seizures (your physician may wish to order laboratory blood tests to determine seizure medication levels)

History of Peptic Ulcer disease (not active)

Anticoagulant medication such as Coumadin or Warfarin, require consistent intake of vitamin K to get the most benefit from the medication. Since Vitamin K in foods may affect the action of anticoagulants, you should avoid drastic changes in dietary habits or in your consumption of foods high in vitamin K. All Medifast products contain Vitamin K in the vitamin/mineral premix. You can use the Medifast program with this medication since your daily intake of vitamin K will be similar each day. Your physician should be aware that Medifast products are fortified with vitamin K. It is important to work with your physician to have laboratory blood work done to determine a therapeutic level of the Coumadin or Warfarin medication.

Over the age of 70 years old, a higher calorie and/or protein level may be necessary, so we do not recommend the standard Medifast 5 & 1 Plan. Some people over the age of 70 have been successful with weight loss using Medifast products in conjunction with a 1,200 calorie per day diet. Please refer to our Senior Meal Plan for helpful information.

Adolescent use – beyond puberty and under the age of 18, any weight loss program (such as Medifast) should be used only as directed by your physician.

Can I use Medifast if I am currently using diuretics?

We recommend that you ask your physician if a low calorie diet is appropriate for you. Your physician may recommend having your electrolytes monitored if you take a diuretic, due to the increased urine output resulting from doing the Medifast program. The weight loss program in conjunction with diuretic use may result in an alteration of your sodium / potassium levels (due to the increased urine output). Your physician may adjust the dosage of (or discontinue the use of) the diuretic while you are doing the Medifast program.

Can I use Medifast if I am currently using thyroid medications?

Individuals with hypothyroidism can do a program. It should be done under the direct supervision of your physician. The doctor may request to monitor labs and medications throughout the program. Some may suggest using a non-soy Medifast product around the time of day that you take thyroid medication.

For information on non-soy products, please refer to the Medifast Allergen Claim Sheet.

Can I use Medifast if I have had gastric bypass surgery?

We have had many individuals do the Medifast program prior to and after having gastric bypass surgery. Your plan would be adjusted based on how long ago your surgery was completed. Medifast Meals are portion-controlled, high protein, low carbohydrate, and fortified with vitamins and minerals. Medifast recommends (as with any weight loss program) that you consult with your doctor prior to and throughout the weight loss process. Your physician may request to monitor labs, medications, or may suggest a different calorie level than our standard 5 & 1 Plan. We will be happy to work with you and/or your physician to help meet your needs.

Additional Information

Study 4

PURPOSE: The 18-month study, (6-month weight loss phase, 12-month maintenance phase) examined a joint parent-child dieting approach, as opposed to an individually based approach, to improve weight loss outcomes. It compares diet using Medifast meal replacements to a non-supplemented Food Guide pyramid based diet. Comparative points include overall weight loss, compliance, palatability, dietary quality and dietary satisfaction. The study also examines whether children who lose weight-using Medifast meal replacements as an adjunct to a Food Guide-pyramid based diet achieve health benefits compared to baseline values and are these health benefits greater than those obtained following the reference diet.
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How Medifast Compares to Atkins

Atkins is a low carb diet which encourages participants to eat foods high in proteins and low in carbohydrates. Medifast Meals, while low in fats, contain an optimal proportion of proteins, carbohydrates and other nutrients.
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