Integrating nutrient bioavailability and co-production links when identifying sustainable diets: How low should we reduce meat consumption?

Integrating nutrient bioavailability and co-production links when identifying sustainable diets: How low should we reduce meat consumption?

BACKGROUND Reducing the consumption of meat and other animal-based products is widely advocated to improve the sustainability of diets in high-income countries. However, such reduction may impair nutritional adequacy, since the bioavailability of key nutrients is higher when they come from animal- vs plant-based foods. Meat reduction may also affect the balance between foods co-produced within ...

Prosthetic valve thrombosis: when and how should we lyse?

Ö o ( c p e fi ( ( t d v ( l With the advent of the Starr-Edwards mechanical mitral and aortic valves in the 1960s, the surgical era of the treatment of cardiac valvular disease began in earnest. Although considered definitive, valve replacement surgery effectively represents an exchange of the pathophysiology of severe valvular dysfunction for the diseases and complications associated with pro...

When and how far should we lower blood pressure?

The accuracy of the diagnosis of mild or borderline hypertension is dubious. Perhaps up to one-third of such patients are wrongly categorized when more accurate measures are taken, largely because of the "defense" reaction. The recent trials of mild hypertension are discussed. Patients with a diastolic blood pressure in the range of 95 to 100 mm Hg should only begin treatment after careful asse...

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How sustainable are we?

part of being human is our capacity to transform the natural world around us. although we rightly rejoice in our scientific knowledge, we are increasingly aware of the damage that we are causing as our technological powers have gone beyond harnessing forces and resources locally, to controlling and redirecting on a massive scale. if all the peoples of the world consumed resources at the rate of...