Diets with more protein help prevent lean mass loss. Consume protein foods like fish, poultry, unprocessed red meat, legumes, dairy, fruits and vegetables.
- Increasing dietary protein during weight loss can help improve diet quality
- Consume protein foods like fish, poultry, unprocessed red meat, legumes, dairy, fruits, vegetables and whole grains
- Avoid processed food, saturated fats, refined grains, sugar and salt while following weight loss programs
In addition, the researchers found a moderately higher intake of protein provided another benefit to the dieters: a reduced loss of lean body mass often associated with weight loss.
Weight-loss regimens that employ calorie restrictions can often spur dieters to reduce the intake of healthy foods that contain micronutrients such as iron and zinc.
Ingesting higher levels of proteins is often associated with healthier outcomes, but the link between protein intake and diet quality is poorly understood, according to researchers.
“The impact of self-selected dietary protein on diet quality has not been examined before, to our knowledge, like this,” said Anna Ogilvie, co-author of the study and a doctoral student in the Department of Nutritional Sciences at Rutgers SEBS. “Exploring the connection between protein intake and diet quality is important because diet quality is often suboptimal in the U.S., and higher-protein weight-loss diets are popular.”
Link between Protein Intake and Diet Quality
The data was collected from more than 200 men and women participating in clinical trials at Rutgers funded by the National Institutes of Health over the past two decades. The analysis of food records and diet quality for this study was funded by the Institute for the Advancement of Food and Nutrition Sciences in Washington, DC.The participants were given nutrition advice based on the guidelines of the Academy of Nutrition and Dietetics and the American Diabetes Association. They were encouraged to allot 18 percent of their caloric intake to lean protein, such as poultry, unprocessed red meat, fish, legumes and dairy, and to expend the balance of their calories on fruits, vegetables and whole grains. They were discouraged from ingesting saturated fats, refined grains, sugar and salt.
The participants who self-selected their protein intake were then characterized by researchers into a lower-protein approach with 18 percent of overall calories coming from protein or a higher-protein approach with 20 percent of the overall food intake coming from protein.
The study concludes:
- Both low- and high-protein groups lost the same amount of weight – about five percent of their body weight over six months
- Higher-protein groups individuals chose a mix of healthier foods to eat overall
- Higher-protein group individuals specifically increased their intake of green vegetables and cut back on sugar and refined grains
- Higher-protein group individuals were better able to retain their lean muscle mass
Source-Eurekalert