
Gil Carvalho on Vitamin C
6 episodes · 6 references · 2025–2026
- Carvalho discusses vitamin C primarily as a nutrient that enhances non-heme iron absorption from plant foods and as a powerful antioxidant found in citrus - Research he covers suggests vitamin C may reverse glucose-induced oxidative damage and is being studied for a potential role in Alzheimer's prevention - No evidence of personal consumption, no specific dosing recommendations, and no cautions discussed
Benefits
- Scurvy prevention: Carvalho notes vitamin C deficiency directly causes scurvy, underscoring its essential nutrient status - Antioxidant and glycemic protection: cites research showing vitamin C reversed oxidative changes caused by elevated glucose levels - Alzheimer's research: vitamin C was included in studies investigating nutrients that may play a role in Alzheimer's disease prevention
Best Practices
- Pairing vitamin C with plant-based iron sources (e.g., lemon on legumes) greatly increases non-heme iron absorption - This is especially relevant for vegetarians and vegans who rely on non-heme iron from plants - Carvalho frames this as a practical dietary trick rather than a supplement recommendation
“Vitamin C, if you don't get enough, you get scurvy.”
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“One reason citrus is beneficial is their high content of vitamin C, which is a powerful antioxidant.”
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“If they gave them vitamin C, all of those changes were reversed, even though the glucose was still cranked up.”
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“There are tricks to get around that like vitamin C, having some vitamin C, having like some lemon on legumes or whatever plant source of iron you're eating... that boosts non-heme iron absorption a lot.”
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