| Cover | Apr. 01, 2022 |
| Cover [Abstract] | |
| Document Type | 8-K |
| Amendment Flag | false |
| Document Period End Date | Apr. 1, 2022 |
| Entity File Number | 001-41290 |
| Entity Registrant Name | SMART FOR LIFE, INC. |
| Entity Central Index Key | 0001851860 |
| Entity Tax Identification Number | 81-5360128 |
| Entity Incorporation, State or Country Code | DE |
| Entity Address, Address Line One | 990 Biscayne Blvd. |
| Entity Address, Address Line Two | Suite 503 |
| Entity Address, City or Town | Miami |
| Entity Address, State or Province | FL |
| Entity Address, Postal Zip Code | 33132 |
| City Area Code | (786) |
| Local Phone Number | 749-1221 |
| Written Communications | false |
| Soliciting Material | false |
| Pre-commencement Tender Offer | false |
| Pre-commencement Issuer Tender Offer | false |
| Title of 12(b) Security | Common Stock, par value $0.0001 per share |
| Trading Symbol | SMFL |
| Security Exchange Name | NASDAQ |
| Entity Emerging Growth Company | true |
| Elected Not To Use the Extended Transition Period | false |
