Choose the Diet Strategy that Helps You Lose Weight and Feel Great!
Both a high-fat, low-carbohydrate diet such as the popular Atkins program and a low-fat, high-carb diet appear to help people lose pounds over the course of a year.
But as for mood? Only the low-fat diets will result in long-term improvement in mood.
People on both diets consumed roughly the same number of calories.
Both an energy-reduced, very low-carbohydrate, high-fat diet and a conventional high-carbohydrate, low-fat diet are equally effective for achieving weight loss in overweight and obese individuals, a research scientist
Both dietary patterns also had similar effects on the cognitive domains assessed, which were working memory and speed of processing. However, the conventional high-carbohydrate, low-fat weight-loss diet was shown to have more positive effects on mood compared to the very low-carbohydrate, high-fat diet.
The study was the first to show both long-term weight loss and improved mood.
This study looked at one factor, and prior studies haven’t focused on psychological factors. This is a great study focusing on something very important.
Other studies have found short-term improvements in mood in people who lose weight on different diets. And the new study also found such improvements over the first eight weeks of dieting.
But few studies have looked at long-term mood changes among people who lose weight.
Health organizations, such as the American Heart Association, tend to advocate higher-carb, low-fat diets. But many overweight and obese people are propelled toward the high-fat diets such as Atkins, “Livin’ La Vida” and “Good Calories, Bad Calories,” perhaps because of quick initial weight loss.
For the new study, 106 overweight and obese adults, who averaged 50 years old, were randomly assigned to one of two diets — a low-calorie, low-carb, high-fat plan or a high-carb, low-fat diet — for one year. Both diets restricted calories to about 1,433 to 1,672 a day.
A year later, average weight loss was about the same in each group: 30.2 pounds.
After the first eight weeks, participants in both groups showed mood improvements, but that lasted only in the low-fat group. After a year, the mood of those in the high-fat group returned to what it had been before they started dieting.
The exact mechanism for the observed effects on mood still remains largely unknown. However, if the mechanism for the return of mood toward more negative baseline levels following weight loss with a very low-carbohydrate diet is related to this diet being so far removed from normal dietary habits, then a very low-carbohydrate diet may be best recommended for individuals who habitually consume low amounts of carbohydrate foods in their diet.
More carbs can increase serotonin concentrations in the brain, whereas added fat and protein can reduce concentrations. Serotonin is a neurotransmitter involved in mood.
Altered mood has been shown to influence interpersonal behavior and, therefore, the consumption of a very low-carbohydrate diet may have psychosocial consequences for interpersonal behavior and relationships. I am not entirely clear as to the effects of mood on long-term weight loss; however a recent review article … suggested that one of the factors that may pose risk for poor long-term weight maintenance may be ‘eating in response to negative emotions and stress.’
Therefore, since negative mood may promote overeating, this suggests that consumption of a very low-carbohydrate diet over an even longer period beyond one year may have implications for maintaining dietary habits and weight loss maintenance.
