Inclusion criteria:  All participants are required to be omnivores who in the last 2 months consumed at least 2-3 meals per week containing meat of any description (red or white fleshed meat, including fish). All participants must be willing to consume both red meat and meat-analogues for the purposes of the trial.  Exclusion criteria:  Obesity (BMI ≥ 30 kg/m2), Hyperlipidaemia Anosmia and ageusia (issues with smell and taste), Use of medications (except for occasional NSAIDs and antihistamines) or recreational drugs, or who smoke tobacco Disordered eating