かたよkatayoruかたよ片寄katayoru
1.

To deviate from a central or standard point, causing a lean or shift toward one direction, resulting in an imbalance.

2.

To focus attention or resources excessively on one particular aspect or area, leading to a lack of overall balance or fairness.

3.

To exhibit a lack of impartiality or fairness, manifesting in biased judgments or evaluations.

Example:

ハンバーガーばかり食べていると、栄養が偏るよ。