Beets are no longer just a niche  health food  — they’re becoming a mainstream staple as demand rises across farms, restaurants and supplements , reflecting a broader shift in how Americans eat . The red, purple or sometimes gold root vegetable — not to be confused with its white cousin, the sugar beet — is low-calorie and packed with nutrients and compounds linked to benefits, ranging from  brain health  to athletic performance. Several studies suggest beets may help lower blood pressure,