Dr. Rafael Herrera

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Niche

Kidney health and diet advice for adults over 60, in Spanish

Audience

Spanish-speaking adults over 50–60, many with high creatinine or chronic kidney disease, and their families, looking for food advice to protect the kidneys (inferred from titles and descriptions).

Avatar

• Talking head · Talking head
• A dark-haired man in a white coat sits at a desk with a microphone, in an office with framed diplomas and a bookshelf, framed as a webcam-style speaker. Thumbnails use a close-up of the same kind of presenter.

Format

A first-person doctor talks to camera about one food or habit and the kidneys: a hook from patient cases, three promises, the mechanism, a protocol, then a summary and comment prompt.

Content pillars

• Foods and kidneys
• Creatinine and chronic kidney disease
• Teas, drinks and spices for the kidneys
• Kidney warning signs
• Other senior health: glucose, eyes

Title patterns

• ¿Qué Le Pasa A Tus Riñones Si [X] Cada Día?
• Nefrólogo Advierte: [X] que Dañan Tus Riñones
• [N] [Foods] para los Riñones Después de los 60
• [N] [X] que tu Nefrólogo te Recomendaría si Tienes Creatinina Alta

Thumbnails

Bold yellow and white capital text with red highlight boxes beside a kidney graphic and the food in question; 6 of 10 show a doctor in a white coat pointing or smiling, the 4 newest show no person.

Their thumbnails, most viewed first

• 
  42.9K views (opens on YouTube in a new tab)
• 
  27.3K views (opens on YouTube in a new tab)
• 
  1.18K views (opens on YouTube in a new tab)

Why it works

• The two top videos (40,924 and 27,170 views) are food-and-kidney questions published on Jul 2 and Jul 1
• 25 of the 30 dated videos tie a food, drink or spice to kidney health, an easy-to-search question for older viewers
• Doctor wording ('Nefrólogo Advierte', 'tu nefrólogo') in 10 of 30 titles; 6 of 10 thumbnails show the white-coat presenter
• Views vary widely: 2 of the 30 dated videos pass 20,000; most stay under 1,200