Diet and Exercise: Weight Management and Lean Muscle

Diet and exercise can support different parts of weight management. Food intake matters for energy balance, while activity can improve fitness and help maintain lean tissue. The historical examples below illustrate those complementary roles; they do not define one program for every person.

Why pair diet and exercise?

For those wishing to begin a weight loss program, exercise is arguably the route that has been ingrained in the minds of most people.

However, the most difficult thing to do consistently is to diet properly.

Many people understand that both processes, individually, can have a positive effect.

Diet and exercise can work together to support fitness and body composition; the result depends on the outcome and the individual.

How can food choices support progress?

First, we need to explain just how important exercise and a proper diet can be. Sound nutrition differs from the promises of “miracle diets”.

The cited 1987 Texas extension item (“Dietary Guidelines for Americans”) plainly stated their golden rule of dieting: “there’s only one way to lose weight and that’s to use up more calories than you take in”.

Those looking to drop weight must constantly be aware of what they are putting into their bodies.

This means that the daily “fast-food breakfast run” might have to be changed to maintain a healthy lifestyle.

According to the article, high fat foods “have about twice as many calories as carbohydrates and protein”. This nutrient comparison is per gram; whole foods also vary in water and other ingredients.

This may give a prospective dieter something to think about when trying to eliminate unwanted pounds.

This is not to say that people should completely abstain from their favorite guilty pleasure.

Rather, they should employ a bit of caution when choosing what to eat.

In fact, a 1987 article stated that it is recommended to “choose a variety of foods providing the nutrients needed and go easy on foods that supply many calories”.

Being mindful of what you are eating reinforces the saying, “your body is a temple”.

Take care of the one body that you have and avoid meals that may override any progress you’ve made.

Why be cautious about quick-fix diets?

It is also important to stick with a diet that works best for you to be able to stay the course.

It is easy to be dissatisfied with not seeing immediate results.

This often leads to looking for a magic bullet.

A 1987 article warned against this, saying the following: “diets that encourage little or no eating, diets that promote heavy eating of one kind of food, and very low-calorie diets can all cause health problems”.

This is a warning about restrictive quick fixes. “Flat-tummy tea” promises and extreme no-carb rules are different practices, not one universal kind of diet.

While these diets may promise quick results, they can slow your progress if your body is not receiving the nutrients needed to properly function.

Therefore, it is important to remember that lasting progress is a slow and steady journey.

How can everyday movement help?

It’s now time to show how exercise plays a role in keeping us healthy.

We’ve all seen the commercials with pictures of people in the gym lifting heavy weights.

But for regular people struggling with health issues, constant exercise doesn’t have to turn someone into “Arnold”.

To that point, a 2005 article “Time to Get Moving: Helping Patients with Diabetes Adopt Exercise as Part of a Healthy Lifestyle” plainly stated the benefits of adding regular exercise into the daily routine for diabetes patients.

The article first established that the concept of exercise should be framed in a beneficial way.

Patients may tend to view the act as “an unpleasant activity that has been punishing when attempted”.

To some people, exercising is viewed much the same as dieting.

Either process takes people out of their comfort zones.

When patients look at bodybuilders in the gym, they may mentally bow to their self-discipline.

The article noted that weight training and general exercise “does not have to be done at an Olympic level while wearing spandex”.

Exercise can help reduce fat, maintain or build muscle, support circulation and improve insulin sensitivity. Fat tissue does not turn into muscle.

The 2005 article gives the example of “30 minutes a day of moderate-intensity physical activity”. That is a historical example, not an individual exercise prescription for every person with diabetes.

This may include simple activities such as a brisk walk several times a day.

Just getting moving can do so much good for the body.

What did the weight-training study find?

Diet and exercise can complement each other, but the benefit depends on the outcome and the individual. The 1988 article “Resistance Weight Training During Caloric Restriction Enhances Lean Body Weight Maintenance” examined lean body weight over eight weeks. It did not establish long-term maintenance.

Forty women with obesity were assigned to four groups in the eight-week study. The reported findings included: “weight training added to a caloric restriction program results in maintenance of LBW and regional increases in muscle area”.

The diets used involved “50% carbohydrates, 27% protein, and 23% fat”.

The strength training program consisted of exercises such as “bench press, inverse leg press, lateral pull down, bicep curl, etc.” performed three days per week.

The study participants followed the assigned diet and training conditions. These historical percentages and exercises are study details, not a universal personal program.

This supported recommendations from the 1987 article that suggested “exercise burns calories and helps make you fit as you become less fat”.

These findings support considering nutrition and resistance training together when maintaining lean tissue, while recognizing the study’s population and short duration.

How can nutrition and activity work together?

Used separately, dieting and exercise are great ways to maintain bodily health.

Remember that a steady, well-planned diet helps to ensure that the body isn’t taking in more calories than it should.

Exercise helps the body expend excess calories.

Combining nutrition and activity can support fitness and body-composition goals, while adequate nutrients and individual needs still matter.

References

Carpenter, Zurie L. (1987). “Dietary Guidelines for Americans”; Texas Agricultural Extension Service, p.1-4.

Marrero, D. G. (2005). Time to Get Moving: Helping Patients With Diabetes Adopt Exercise as Part of a Healthy Lifestyle. Clinical Diabetes, 23(4), 154–159. https://doi.org/10.2337/diaclin.23.4.154

Ballor, D. L., Katch, V. L., Becque, M. D., & Marks, C. R. (1988). Resistance weight training during caloric restriction enhances lean body weight maintenance. American Journal of Clinical Nutrition, 47(1), 19–25. https://doi.org/10.1093/ajcn/47.1.19

U.S. Food and Drug Administration. Science and Our Food Supply: Teacher’s Guide for Middle School Classrooms, third edition. Caloric conversion statement. https://www.fda.gov/media/95613/download

“Those looking to drop weight must constantly be aware of what they are putting into their bodies.”

“Being mindful of what you are eating reinforces the saying, “your body is a temple”.”

“Diet and exercise can complement each other, but the benefit depends on the outcome and the individual.”