The Claim

In adults with overweight or obesity undergoing caloric restriction, a higher self-selected protein intake of 79 g/day is associated with improved diet quality as measured by the Healthy Eating Index, due to increased consumption of green vegetables and reduced intake of refined grains and added sugars.

Source: Higher protein intake during caloric restriction improves diet quality and attenuates loss of lean body mass

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
64score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Correlation
1 study reviewed
In plain English

Among adults with overweight or obesity who reduce their calorie intake, those who choose to eat 79 grams of protein per day tend to have better diet quality, measured by higher intake of green vegetables and lower intake of refined grains and added sugars.

See the scientific wording

During caloric restriction in adults with overweight or obesity, higher self-selected protein intake (79 g/day) is associated with improved diet quality as measured by the Healthy Eating Index, driven by increased consumption of green vegetables and reduced intake of refined grains and added sugars.

Why this might work

When protein intake increases, it triggers signals in the gut and brain that reduce hunger and cravings for sugary and starchy foods. This leads to eating more vegetables and fewer refined grains and added sugars, which improves overall diet quality.

Supported mechanismbased on 1 study

What the research says

1 study
  1. Study: Higher protein intake during caloric restriction improves diet quality and attenuates loss of lean body mass

    People who chose to eat more protein while dieting also ended up eating more spinach and broccoli and less white bread and sugar, making their overall diet healthier — and the study proved this link.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.