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The WHO is a fairly reputable source.[0]

[0] http://www.who.int/features/qa/cancer-red-meat/en/

https://www.ncbi.nlm.nih.gov/m/pubmed/22618737/

After allowing for measurement error, a 3% increase in the consumption of energy intake from animal protein was associated with a 15% higher risk (95% confidence interval [CI]: 3-30%; p(trend) = 0.01) and a 2% increase in energy from plant protein intake was associated with a 23% lower risk (95% CI: 36-7%, p(trend) = 0.006).

https://nutritionfacts.org/?fwp_search=cancer&fwp_content_ty...

Do you have direct links to peer-reviewed sources, not search results for videos? Also I am always skeptical of websites where all the content is produced by one doctor and phrases like "From the physician behind the trusted website NutritionFacts.org, How Not to Die reveals the groundbreaking scientific evidence behind the only diet that can prevent and reverse many of the causes of premature death and disability" are found on it. Most practicing physicians are much more careful with their wording.

His videos summarize peer reviewed sources. Everything is evidence based.