Observations on the Diseases Which Appeared in the Army at St. Lucia in 1778 and 1779. To Which Are Prefixed Remarks, Calculated to Assist in Explaining the Treatment of Those Diseases. With an Appendix, Containing a Short Address to Military Gentlemen on the Means of Preserving Health in the West Indies 

in the fourth chapter the author describes the situations of the island, in which the men specified in the table were fixed, and endeavours to determine which are the most healthy. For this purpoSe he gives a comparative view of the health of the natives compared with that of the troops. 

He observes, that "at Carenage-town the People are:

• short-lived, 

• have annual attacks of fever, 

• yellow and meagre countenances, 

• small legs, except when eedematous, 

• so that they have the appearance of persons worn out by disease. 

At Gros Met, we are told:

•  the inhabitants live longer,

• are not fo subject to disease, at least not the same degree or duration,

•  and that they are fuller in the face,

•  and more hearty.

At Souffrir the inhabitants have:

•  cheerful countenances, 

• and nearly in a state of health with those of Gros Islet, 

but this, our author thinks, may be attributed to a better diet rather than situation. "

On the extensive plain to windward of this place very few diseases appear, and they are mostly internments : the countenances here of the women, of the children, and even of the men, have some degree of resemblance to those of the European, the female has the red on her cheek, and the child has all the marks of health.

http://www.trinbagopan.com/Townsandvillages/Carenage2.html

Carenage, formerly known as Le Carenage, is one of the most popular bays located in west Trinidad. This bay, which is a famous sea bathing and liming area, got its name out of the practice of "careening", or cleaning out the waste materials in sea vessels, which was carried out in the area for centuries.

Initially, Le Carenage was the name given to the river flowing into this bay as well as the valley were the river flowed.

The Carenage valley, possibly because of its extremely fertile soils was essentially an agricultural area where crops sugar-cane, cotton and coffee were grown. In fact, the area contained ten sugar mills, five rum distilleries and a workforce consisting of 607 enslaved Africans and 131 'free' people of colour. Owners of the estates comprised of 19 families (64 whites), including the Dumas, Noel, Dert, Mercie families.

https://www.diffordsguide.com/producers/174/st-lucia-distillers/history

Gros Islet (English: Large Island) is a community near the northern tip of the island country of Saint Lucia, in the Gros Islet Quarter. Originally a quiet fishing village, it has gone on to become one of the more popular tourist destinations in the country.[3]

Settled by the Carib (and possibly Arawak), the area was first identified as Gros Islet in a French map from 1717.[4] The community was a Roman Catholic parish, as the first priests who arrived on the island settled in the village in 1749.[5]

Who were the Carib? - Possibly a carnivore population. 

The Carib Indians were primarily fishing people. They took to sea in their long canoes to catch fish, crabs, and other seafood. Hunters also shot birds and small game. In some Carib communities, farming was an important food source, with cassava, beans, squash, and peppers being grown. Other Carib groups did little farming and acquired peppers and cassava through trade or raiding.