The Claim

Caloric restriction increases lifespan in mice, and among mice under caloric restriction, those consuming lard as the primary dietary fat exhibit the greatest longevity compared to other fat sources.

Source: They Were Wrong About Olive Oil, 1 Tbsp of THIS is Best for Longevity

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
10score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

Cause and effect
3 studies reviewed
In plain English

Mice that eat fewer calories live longer, and among those on a low-calorie diet, the ones eating mostly lard seem to live the longest.

See the scientific wording

Caloric restriction extends lifespan in mice, and among calorie-restricted mice, those consuming lard as the primary dietary fat source exhibit the greatest longevity.

What the research says

3 studies
  1. Study: The Influence of Dietary Fat Source on Life Span in Calorie Restricted Mice.

    The study found that mice on a low-calorie diet lived longer, and those eating lard lived even longer than mice eating other fats like fish or soybean oil. This matches the claim.

  2. Study: The Influence of Dietary Fat Source on Life Span in Calorie Restricted Mice.

    The study found that mice on a low-calorie diet lived longer, and those eating lard lived the longest compared to other fats. This matches the claim perfectly.

  3. Study: The Impact of Aging, Calorie Restriction and Dietary Fat on Autophagy Markers and Mitochondrial Ultrastructure and Dynamics in Mouse Skeletal Muscle.

    The study found that mice on a low-calorie diet lived longer, and those eating lard lived even longer than mice eating other fats like soybean or fish oil. This matches the claim perfectly.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 3 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

Not medical advice. For informational purposes only. Always consult a qualified healthcare professional before making health decisions.