EP 125. Desmontando mitos de la nutrición: carne roja, azúcar, soja, proteína y B12 - con Miguel López

22 Feb 2026

EP 125. Debunking Nutrition Myths: Red Meat, Sugar, Soy, Protein, and B12 - with Miguel López

Azúcar Nutrición Proteínas Soja

53min 11sec

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What if you've been avoiding foods for years because of myths that no one has properly explained to you? In this episode, Isabel Viña sits down with Miguel López, a registered dietitian-nutritionist and PhD in Food Science , to sort out the chaos : what's repeated on social media, what's taken for granted at the gym… and what the evidence actually says.

We talked about soy and why it continues to generate so much controversy (testosterone, thyroid, cancer, "GMOs", environmental impact...), the news from France and the debate about consumption in young people , and a very common question: if you lack iron , do you really "have to eat more meat or are there other equally valid ways?

We also delve into an uncomfortable but crucial topic: how much meat we eat in Spain compared to how little legumes appear on our plates. And we continue with everyday questions: vitamin B12 , the obsession with protein and whether it's possible to gain muscle with plant-based protein , the fear of sunflower oil, and the eternal sugar war: "white vs. brown vs. syrups."

If you want a talk to think better about your diet without dogmas, with nuances and with real examples, this episode will interest you.

Miguel López / Nutriconciencia