A noticeably slimmed-down Elon Musk joked about his weight loss after he was photographed dressed up as Old Saint Nick.

The world’s richest man has clashed with incoming Health and Human Services chief Robert F. Kennedy Jr. over the role weight-loss medications should play in making Americans healthier and thinner.

On Christmas Day, billionaire Elon Musk shocked his followers by sharing a revealing post about his weight-loss journey. Known for his outspoken personality, Musk posted a photo of himself dressed as Santa Claus on X,

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Kennedy Jr. last month, it seems Elon Musk is trying to shed a few pounds—with a little pharmaceutical assistance. The billionaire shared a photo of himself dressed up as Santa Claus in front of a Christmas tree on X this week with the caption,